Switch A and Switch B: general default settings.... 39 Switch A and Switch B: port names, VLANs, STP, trunking default settings... 45
Performing a serial download
Introduction.... 47 Serial upgrade of boot code firmware image procedure.... 47 Serial upgrade of operating system firmware procedure.... 49

SNMP MIBs support

Introduction.... 52 SNMP manager software.... 52 Supported MIBs..... 52 Supported traps..... 53

Safe Mode configuration

Introduction.... 55 User account information.... 55 Safe Mode..... 55 GbE2 Interconnect Switch replacement scenario using a Safe Mode configuration... 56 Safe Mode configuration file templates.... 56 Safe Mode configuration file template modification... 56 Applying the Safe Mode template configuration file... 56

Electrostatic discharge

Overview..... 58 Grounding methods.... 58
RJ-45 pin specification Troubleshooting Index

Contents 4

Overview
This user guide provides installation and reference information for the following kits: HP ProLiant BL p-Class C-GbE2 Interconnect Kit HP ProLiant BL p-Class F-GbE2 Interconnect Kit

Additional references

Once the GbE2 Interconnect Switch is installed, you are ready to configure it. Detailed information about how to configure the GbE2 Interconnect Switch is available in the reference guides listed below. To obtain these guides, go to the HP website (http://www.hp.com/support), and search for GbE2. HP ProLiant BL p-Class GbE2 Interconnect Switch Application Guide HP ProLiant BL p-Class GbE2 Interconnect Switch Command Reference Guide HP ProLiant BL p-Class GbE2 Interconnect Switch Browser-based Interface Reference Guide HP ProLiant BL p-Class C-GbE2 Interconnect Kit Quick Setup Instructions HP ProLiant BL p-Class F-GbE2 Interconnect Kit Quick Setup Instructions HP BladeSystem p-Class SAN Connectivity Kit Quick Setup Instructions
The HP ProLiant BL p-Class C-GbE2 Interconnect Kit contains two HP ProLiant BL p-Class GbE2 Interconnect Switches and two QuadT2 Interconnect Modules. The HP ProLiant BL p-Class GbE2 Interconnect Switches and QuadT2 Interconnect Modules use 10Base-T/100BaseTX/1000Base-T Gigabit Layer 2 switching technology to provide between 32-to-1 (blocking) to 32-to-12 (blocking) reduction in the number of networking cables per BL p-Class server blade enclosure. Each HP ProLiant BL p-Class GbE2 Interconnect Switch and QuadT2 Interconnect Module reduces sixteen 10BaseT/100Base-TX/1000Base-T server networking ports to one to four RJ-45 10Base-T/100Base-TX/1000Base-T ports (located on the removable interconnect module) and one to two RJ-45 10Base-T/100Base-TX/1000Base-T ports (located on the front of the HP ProLiant BL p-Class GbE2 Interconnect Switch). Figure 1 HP ProLiant BL p-Class GbE2 Interconnect Switch and QuadT2 Interconnect Module
The HP ProLiant BL p-Class F-GbE2 Interconnect Kit contains two HP ProLiant BL p-Class GbE2 Interconnect Switches and two QuadSX Interconnect Modules. The HP ProLiant BL p-Class GbE2 Interconnect Switches and QuadSX Interconnect Modules use 10Base-T/100BaseTX/1000Base-T and 1000Base-SX Gigabit Layer 2 switching technology to provide between 32-to-1 (blocking) to 32to-12 (blocking) reduction in the number of networking cables per BL p-Class server blade enclosure. Each HP ProLiant BL p-Class GbE2 Interconnect Switch and QuadSX Interconnect Module reduces sixteen 10BaseT/100Base-TX/1000Base-T server networking ports to one to four LC 1000Base-SX ports (located on the removable interconnect module) and one to two RJ-45 10Base-T/100Base-TX/1000Base-T ports (located on the front of the HP ProLiant BL p-Class GbE2 Interconnect Switch).

Introduction 5

Figure 2 HP ProLiant BL p-Class GbE2 Interconnect Switch and QuadSX Interconnect Module

Features

The ProLiant BL p-Class GbE2 Interconnect Switch and interconnect modules are designed for easy installation and high performance in an environment where traffic on the network and the number of users increases continually.
Enterprise class performance
The ProLiant BL p-Class GbE2 Interconnect Switch features include: Up to a 16-to-1 reduction in networking cables and connections, concentration of sixteen 10/100/1000 Ethernet networking ports down to as little as one Gigabit Ethernet port, or up to six Gigabit Ethernet ports for additional bandwidth and redundant connections to the network backbone Multi-layer switching capability with Layer 3 support for routing and Internet Protocol (IP) load balancing content delivery switching Pass-through ProLiant BL20p G2 Fibre Channel storage signals via the optional GbE2 Storage Connectivity Kit Fully supported on the existing ProLiant BL p-Class server blade enclosure and infrastructure compatible with any combination of ProLiant server blades Ability to upgrade from an existing GbE Interconnect Switch or Patch Panel interconnect without having to power down the server blades and the server blade enclosure Pre-configured for immediate use with the ProLiant BL p-Class server blade enclosure System security including Secure Shell (SSH), Secure Copy (SCP), 255 port-based IEEE 802.1Q tagged Virtual Local Area Networks (VLANs) per GbE2 Interconnect Switch, RADIUS user authentication and authorization, or Terminal Access Controller Access Control System Plus (TACACS+) Authentication, Authorization, and Accounting (AAA) An extensive list of industry standard protocol support, compatible with widely-used networking components 9K jumbo frames that improve performance by increasing application throughput and decreasing server processor utilization Robust configuration and management from any switch port using the included browser-based and scriptable command line user interfaces Support for Telnet, Simple Network Management Protocol (SNMP), SCP and Trivial File Transfer Protocol (TFTP) file transfer, human read/write configuration file, XModem, an extensive list of Management Information Base objects (MIBs), and more, further enhance the management capabilities Fully end-to-end redundant architecture maximizing network availability Support for Internet Group Management Protocol (IGMP) snooping for multicasting Support for Uplink Failure Detection (UFD) for network path resiliency. It works in conjunction with NIC teaming functionality that is supported on the blade servers. This feature tracks the link state on uplink ports. When an uplink port goes down or is in STP blocking state, this feature will enable the switch to auto-disable the downlinks which are connected to the blade server NICs. This enables NIC teaming software to detect link failure on the primary NIC port and fail over to the secondary NIC in the team. As a result, the secondary path is enabled for continued blade server access. When used in conjunction with UFD, NIC teams on the blade server must be configured for switch redundancy. That is, the team will span ports on both Switch A and Switch B. Refer to the HP ProLiant Network Adapter Teaming white paper on http://www.hp.com/support for additional information.

Diagnostic tools

The hardware, software, and firmware diagnostic tools that are available include: HP Systems Insight Manager automatic discovery and identification Power-on self-test (POST) built into the GbE2 Interconnect Switch boot process GbE2 Interconnect Switch port mirroring GbE2 Interconnect Switch LED panel displaying per port status and speed Interconnect module LEDs displaying per port status and speed System, management, and option compatibility status LEDs Front panel reset power switch, DB-9 port, and two Gigabit Ethernet ports

Introduction 8

Statistic monitoring including port utilization, data packets received/transmitted, port error packets, trunk utilization, and so on Ping and trace route capability Remote syslog with support for primary and secondary syslog server Portable Diagnostic Station option to configure and diagnose a GbE2 Interconnect Switch and server blade removed from the rack The ability to return the GbE2 Interconnect Switch to known good condition in case of firmware corruption State information dump for tuning and debugging switch performance Panic command for immediate state dump to flash memory and automatic switch boot Ability to set NVRAM diagnostic flags
GbE2 Interconnect Switch architecture
The ProLiant BL p-Class system provides integrated switching technology for network cable reduction. The following diagram illustrates the Ethernet signal connectivity between server bays and the interconnect bays through the backplane for the p-Class server enclosure. Figure 3 Ethernet signal connectivity via backplane
The following diagram illustrates the Ethernet signal connectivity between server bays and the interconnect bays through the backplane for p-Class server enclosures with enhanced backplane components that support high-density blade servers. Figure 4 Ethernet signal connectivity for server enclosures with enhanced backplane components
The interconnect switch does not affect or determine NIC enumeration and the associated mapping of NIC interfaces to interconnect switch ports. The numbering of the NICs on the server (for example, NIC 1, NIC 2, NIC 3) is determined by the server type, the server operating system, and what NICs are enabled on the server.
HP Ethernet Connectivity Mapper utility (hpecm)
The HP Ethernet Connectivity Mapper is a utility used to determine the NIC name enumeration and the associated mapping to switch ports. The physical connections between server blade network interface controllers (NICs) and switch ports depend on the server blade type and the enclosure backplane type, as described above. The logical NIC name enumeration depends on the operating system software (such as Local Area Connection, Local Area Connection 2, etc. for Windows; eth0, eth1, etc. for Linux). hpecm is a graphical tool which collects information about the contents of a ProLiant BL blade enclosure, including enclosure type, blade type, and blade operating system (OS). It then displays the mapping between the switch or patch panel ports and the OS enumeration (naming order) of the blade network interface controller (NIC) ports. Configuration validation is performed as items are selected, so hpecm may also be used as an aid to configuration and/or deployment planning. To obtain the HP Ethernet Connectivity Mapper, download the Interconnect Switch Management Utilities from the HP website (http://www.hp.com/support). Search for GbE2.

Layer 2 switching technology allows the GbE2 Interconnect Switch to look into data packets and redirect them based on the destination MAC address. This reduces traffic congestion on the network because packets, instead of being transmitted to all ports, are transmitted to the destination port only.
IEEE 802.1Q-based Virtual Local Area Network
The ProLiant BL p-Class GbE2 Interconnect Switch provides support for a total of 255 IEEE 802.1Q Virtual Local Area Networks (VLANs) for server grouping and isolation. A VLAN is a network segment configured according to a logical scheme rather than a physical layout. VLANs can be used to combine any collection of local area network (LAN) segments into an autonomous user group that appears as a single LAN. VLANs also logically segment the physical network into different broadcast domains so that packets are forwarded only between ports within the VLAN. This technology enhances performance by conserving bandwidth and improves security by limiting traffic to specific domains. For example, you may want to isolate the server blade iLO ports from the rest of the NICs. The iLO ports on interconnect Switch B can be assigned to their own VLAN and go to a dedicated uplink or share an uplink using VLAN tagging. IMPORTANT: The greater the number of VLANs, the greater the GbE2 Interconnect Switch central processing unit (CPU) utilization. For maximum interconnect switch performance, HP recommends that you be judicious when configuring the number of VLANs.

Spanning Tree Protocol

The GbE2 Interconnect Switch supports IEEE 802.1D Spanning Tree Protocol (STP), which allows the blocking of links that form loops between switches in a network. When multiple links between switches are detected, a primary link is established. Duplicated links are blocked from use and become standby links. If the primary link fails, the standby link is activated. In addition, the GbE2 Interconnect Switch provides a spanning tree domain per VLAN. The switch is compatible with Cisco PVST+ and Cisco PVST, when the other device is configured as untagged or configured to use 802.1q tagging. Sixteen spanning tree domains are supported per GbE2 Interconnect Switch. Release 2.0 also provides IEEE 802.1s-based MSTP and IEEE 802.1w-based RSTP.

Simple Network Management Protocol
Each GbE2 Interconnect Switch can be configured and monitored remotely from a Simple Network Management Protocol (SNMP)-based network management station. The GbE2 Interconnect Switch supports industry-standard SNMP Management Information Bases (MIBs) and proprietary HP enterprise switch MIBs for fault detection and monitoring of switch functionality. In addition, the GbE2 Interconnect Switch supports various environmental traps such as temperature and fan failure traps. To secure the management interface, the switch administrator can configure community strings with two levels of access: Read and Read/Write. Access to the GbE2 Interconnect Switch can also be restricted to only management stations that are members of a specific Internet Protocol (IP) network. This can be achieved by configuring the address/mask of that specific network as a restricted management network address/mask.

Port mirroring

The GbE2 Interconnect Switch allows you to mirror one or multiple ports (source ports) to another port (destination port) for network monitoring and troubleshooting purposes. This technology offers a way for network packet analyzers to view the traffic moving through the GbE2 Interconnect Switches by providing a copy of the traffic that is currently being passed through any other port. The packets are normally sent to a network packet analyzer or other monitoring device attached to the mirror port.
Port trunking and load balancing
The GbE2 Interconnect Switch supports EtherChannel compatible IEEE 802.3ad (without LACP) port trunking allowing several ports to be grouped together and act as a single logical link called a trunk. This feature provides a bandwidth that is a multiple of the bandwidth of a single link. It also improves reliability since load balancing is automatically applied to the ports in the trunked group. A link failure within the group causes the network traffic to be directed to the remaining links in the group.
Trivial File Transfer Protocol support
Trivial File Transfer Protocol (TFTP) support allows the GbE2 Interconnect Switch firmware to be upgraded by downloading a new firmware file from a TFTP server to the GbE2 Interconnect Switch. Firmware images of the GbE2

Introduction 13

Interconnect Switch can also be uploaded to a TFTP server, a configuration file can be downloaded into a GbE2 Interconnect Switch from a TFTP server, and configuration settings can be saved to the TFTP server.
Store and forward switching scheme
The GbE2 Interconnect Switch provides a store and forward switching scheme that allows each packet to be buffered (stored) before it is forwarded to its destination. While this method creates latency, it improves reliability in a heavily used interconnect switch. Packets that cannot be forwarded are saved immediately, rather than dropped, so that packets behind them are less likely to be dropped in periods of heavy usage.

Bootstrap Protocol

By default, the GbE2 Interconnect Switch is configured to obtain an IP address from a Bootstrap Protocol (BOOTP) server during the boot process. The IP settings can also be manually configured by means of the serial interface. The IP settings are configurable from the browser-based interface, but because the connection is based on an IP address for these interfaces, users will have to reconnect with the newly assigned IP address.

Network Time Protocol

The GbE2 Interconnect Switch can maintain the current date and time. This information displays on the management interfaces and is used to record the date and time of switch events. Current date and time information can be manually set on the GbE2 Interconnect Switch or can be obtained through Network Time Protocol (NTP). NTP allows the GbE2 Interconnect Switch to send a request to a primary NTP server in each polling period asking for Greenwich Mean Time (GMT).
Remote Authentication Dial-in User Service (RADIUS)
The GbE2 Interconnect Switch supports the Remote Authentication Dial-in User Service (RADIUS) method to authenticate and authorize remote administrators for managing the GbE2 Interconnect Switch. This method is based on a client/server model. The Remote Access Server (RAS)the switchis a client to the back-end database server. A remote user (the remote administrator) interacts only with the RAS, not the back-end server and database. RADIUS authentication consists of the following components: A protocol with a frame format that utilizes User Datagram Protocol (UDP) over IP, based on Request For Comments (RFC) 2138 and 2866 A centralized server that stores all the user authorization information A client, in this case, the GbE2 Interconnect Switch

Secure Shell and Secure Copy
Secure Shell (SSH) and Secure Copy (SCP) use secure tunnels to encrypt and secure messages between a remote administrator and the GbE2 Interconnect Switch. Telnet does not provide this level of security. The Telnet method of managing a GbE2 Interconnect Switch does not provide a secure connection. SSH is a protocol that enables remote administrators to log securely into the GbE2 Interconnect Switch over a network to execute management commands. SCP is typically used to copy files securely from one machine to another. SCP uses SSH for encryption of data on the network. On a GbE2 Interconnect Switch, SCP is used to download and upload the switch configuration via secure channels.

XModem

The GbE2 Interconnect Switch supports XModem for transferring files during direct dial-up communications. XModem sends blocks of data in 128-byte blocks, and includes an error-detection system called a checksum. When the data is received, the error detection system ensures that the entire message reached its destination. If not, the receiving computer sends a request for retransmission of the data.
Internet Group Management Protocol (IGMP) Snooping
The GbE2 Interconnect Switch supports IGMP Snooping for multicasting, starting with Release 2.0. Both Version 1and Version 2-based IGMP Snooping is supported. In addition, auto detection of the multicast router port and manual configuration of the multicast router port is supported. For efficient multicast traffic management, the IGMP Filtering option is supported.

Jumbo frames

By default, the GbE2 Interconnect Switch module supports jumbo frames up to 9216 bytes, which may help reduce server central processing unit (CPU) utilization and may increase application throughput. No configuration is required. The GbE2 Interconnect Switch does not fragment frames as they exit, or assemble packets into jumbo frames as they enter the switch.

Auto-MDI/MDIX

The GbE2 Interconnect Switch Ethernet ports are medium dependent interface (MDI)/MDI crossover (MDIX) capable. MDI/MDIX is a type of Ethernet port connection using twisted pair cabling. The medium dependent interface (MDI) is the component of the media attachment unit (MAU) that provides the physical and electrical connection to the cabling medium. An MDI crossover (MDIX) is a version of MDI that enables connection between like devices. MDI ports connect to MDIX ports via straight-through twisted pair cabling whereas both MDI-to-MDI and MDIX-to-MDIX connections use crossover twisted pair cabling. The GbE2 Interconnect Switch has the capability to automatically detect the cable selection/type, making the distinction between a straight-through cable and a crossover cable unimportant.

5. 6. 7. 8. 9.

On the rear side of the server blade enclosure, insert the new interconnect module into the bottom-left module bay. On the front side of the server blade enclosure, slide a new GbE2 Interconnect Switch fully into the right interconnect bay. Close the ejector lever and let the switch boot up completely, so that network connectivity is established. Repeat steps 1 through 4 to remove the interconnect module from the top-right module bay and the GbE Interconnect Switch from the left interconnect bay. Repeat steps 5 through 7 to insert the new interconnect module into the bottom-right module bay and the new GbE2 Interconnect Switch into the left interconnect bay.
Upgrading from an RJ-45 Patch Panel or RJ-45 Patch Panel 2
CAUTION: Removing a patch panel from a powered enclosure will result in the loss of network communications between the server blade network ports that are connected through this patch panel and the segment of network infrastructure those ports need to communicate.
IMPORTANT: If you are replacing an existing GbE2 Interconnect Switch, or upgrading from a GbE Interconnect Switch, an RJ-45 Patch Panel, or an RJ-45 Patch Panel 2, and you have strict security requirements: Do not cable the GbE2 Interconnect Switch until after configuration. Or Connect the GbE2 Interconnect Switch to the optional Diagnostic Station. The Diagnostic Station enables you to power up, configure, and diagnose a ProLiant p-Class server blade or a ProLiant p-Class GbE2 Interconnect Switch outside of the rack environment. To upgrade from an existing RJ-45 Patch Panel or RJ-45 Patch Panel 2: 1. 2. 3. 4. 5. 6. From the rear side of the server blade enclosure, slide out the top and bottom patch panel modules (total of four) from the module bays and unplug the cables. From the front side of the ProLiant BL p-Class server blade enclosure, unlock the ejector lever and slide out the patch panels (total of two) from the interconnect bays. From the rear side of the server blade enclosure, insert the new interconnect modules that came with the GbE2 Interconnect Switch into the bottom-right and bottom-left module bays. From the front side of the server blade enclosure, slide the one GbE2 Interconnect Switch into the left interconnect bay. Lock the ejector levers. Repeat steps 4 and 5 to install the second GbE2 Interconnect Switch in the right interconnect bay.

Using scripted CLI commands through Telnet
The CLI, provided with the GbE2 Interconnect Switch, allows you to execute customized configuration scripts on multiple switches. A configuration script can be tailored to one of the multiple switches, and then that configuration can be deployed to other switches from a central deployment server.
Using a configuration file
If you plan for the base configuration of multiple GbE2 Interconnect Switches in your network to be the same, you can manually configure one GbE2 Interconnect Switch, upload the configuration to a TFTP server, and use that configuration as a base configuration template file. GbE2 Interconnect Switch IP addresses are acquired by default using BOOTP, therefore, each GbE2 Interconnect Switch has a unique IP address. Each GbE2 Interconnect Switch can be remotely accessed from a central deployment server and an individual interconnect switch configuration can be downloaded to meet specific network requirements. Refer to the HP ProLiant BL p-Class GbE2 Interconnect Switch Command Reference Guide for additional information on using a TFTP server to upload and download configuration files.
Cabling the GbE2 Interconnect Switch
After installing the GbE2 Interconnect Switch hardware and planning the configuration, cable the GbE2 Interconnect Switch to your network. IMPORTANT: If you are replacing an existing GbE2 Interconnect Switch, or upgrading from a GbE Interconnect Switch, an RJ-45 Patch Panel, or an RJ-45 Patch Panel 2, and you have strict security requirements: Do not cable the GbE2 Interconnect Switch until after configuration. Or Connect the GbE2 Interconnect Switch to the optional Diagnostic Station. The Diagnostic Station enables you to power up, configure, and diagnose a ProLiant p-Class server blade or a ProLiant p-Class GbE2 Interconnect Switch outside of the rack environment.
Setting up and installing the GbE2 interconnect switch 26
To connect the interconnect modules to the network: 1. Connect your network cables to the interconnect modules. For connector locations, refer to the QuadT2 Interconnect Module panel section or QuadSX Interconnect Module panel section in the Introduction chapter. Gather your network cables for the right side of the rack. Insert the end of the cable-retaining bracket (provided with the bus bar and power bus boxes) into the cable bracket (1). Tighten the thumbscrew to secure the cable retaining bracket over the cables (2).

Table 10 Physical and environmental specifications
DC inputs Power consumption Operating temperature Storage temperature Operating humidity Storage humidity GbE2 Interconnect Switch dimensions Interconnect Module dimensions -48V: 2350 mA maximum per GbE2 Interconnect Switch 112W maximum per GbE2 Interconnect Switch 10 to 35 degrees Celsius -30 to 60 degrees Celsius 20% to 80% RH noncondensing 5% to 95% RH noncondensing 28.0 in. x 10.4 in. x 1.6 in. Top Module (Fibre Channel Signals): 7.4 in. x 3.5 in. x 1.6 in. Bottom Module (Ethernet Signals): 7.4 in. x 2.25 in. x 1.6 in. 12 lb (GbE2 Interconnect Switch and Interconnect Module) FCC Class A ICES-003 Class A AS/NZS 3548 Class A VCCI Class A UL/CUL Listed Accessory CE

Weight EMI

Safety
Table 11 Performance specifications
Transmission method Memory MAC address table size Packet forwarding rate Maximum external port packet forwarding rate Best downlink external port packet forwarding rate ratio Interswitch x-connects across enclosure backplane MAC address learning Forwarding table age time Store-and-forward 128MB main, 32MB flash, and 2 MB shared packet buffer memory per GbE2 Interconnect Switch 2K per GbE2 Interconnect Switch 1,488,095 packets per second with 64 byte packets per port (for 1000 Mb/s) 6 X 1Gig port = 6 X 1,488,095 = 8,928,570 pps per GbE2 Interconnect Switch 16 : X 1Gig ports bundled in Port Trunk of 2Gig size Automatic update Maximum age: 1 to 65535 seconds Default: 300 seconds
Runtime switching software default settings
This section provides the default settings for the GbE2 Interconnect Switch: Table 12 contains general default settings for both Switch A and Switch B Table 13 contains port names, VLANs, STP, trunking default settings for Switch A and Switch B
Switch A and Switch B: general default settings
Switch A and Switch B are configured with the following general default settings: Table 12 Switch A and Switch B: general default settings
Setting Notice Banner User Names/Passwords Value None None User Name: userEnabled operDisabled adminEnabled (cannot be disabled) Enabled 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 None 0.0.0.0/0.0.0.0 Image1 Active Disabled 5 minutes Enabled 23 Enabled 80 Disabled Enabled Auto Receive & Transmit STG 1Enabled with Default VLAN (VID=1) Port 1-16 (Server Ports) STPDisabled at Port Level STG 2-16Disabled Bridge Max Age 20 seconds

Performing a serial download 48
Serial upgrade of operating system firmware procedure
Use the following procedure to perform a serial upgrade of the GbE2 Interconnect Switch Operating System firmware image usually named pGbE2_100.bin. 1. 2. Using the null modem cable, connect the console port of a GbE2 Interconnect Switch to the serial port of your PC that supports XModem/1K XModem. Start HyperTerminal (part of Microsoft Windows) or equivalent terminal emulation application (depending on your computer operating system) and set the following parameters for terminal emulation console:
NOTE: You can perform serial downloads at 57600 baud rate by pressing the Shift-F keys or at 115200 baud rate by pressing the Shift-D keys. 5. After the message in step 4 displays, reconfigure your terminal emulation console with the following parameters.
Performing a serial download 49
Make sure that the new Switch Operating System firmware file is available on the computer. This file can be downloaded from the CD that is shipped with the GbE2 Interconnect Switch or from http://www.hp.com/support. Select <Transfer-Send File> from the menu and choose the following options in the send file window: file: pGbE2_100.bin (100 represents the version number of Switch Operating System firmware) protocol: 1K XMODEM The send file window displays the progress of the file transfer. It takes about five minutes for the transfer to complete.
NOTE: Although slower, XModem also works if you choose not to use 1K MODEM. 9. After completing the transfer, a message displays how many bytes transferred, followed by another message displaying the status of image extraction. Do not power cycle the switch during this process.
CAUTION: Do not power off the GbE2 Interconnect Switch until you see the message: Change your baud rate to 9600 bps and the power cycle switch, otherwise, the GbE2 Interconnect Switch will be inoperable.
Performing a serial download 50
After extracting the image, the system prompts you to select which current operating system image (image1 or image2) needs to be updated by the new operating system image. It also provides an option (n) not to update any and to quit the update procedure. Depending on your selection, 1 or 2, the system updates image1 or image2 on the flash and a message with a progress indicator displays as shown below. If you select n, the system aborts the update procedure and prompts you to reset the baud rate and power cycle the switch. ProLiant p-Class GbE2 Interconnect Switch - PPCBoot 2.x.x. To download GbE2 Switch Boot Code or GbE2 Switch OS Image use 1K Xmodem at 115200 Total bytes transferred: 0x1ef400CCCCCCCCCCCCCC Extracting images. Do *NOT* power cycle the switch Please choose the GbE2 Switch OS Image to upgrade [1|2|n] : 1 Updating GbE2 Switch OS Image 1 @ ff800000 ############################### Switch set to boot image 1 Change your baud rate to 9600 bps and power cycle the switch OR ProLiant p-Class GbE2 Interconnect Switch - PPCBoot 2.x.x. To download GbE2 Switch Boot Code or GbE2 Switch OS Image use 1K Xmodem at 115200 Total bytes transferred: 0x1ef400 Extracting images. Do *NOT* power cycle the switch Please choose the GbE2 Switch OS Image to upgrade [1|2|n] : 2 Updating GbE2 Switch OS Image 2 @ ff800000 ############################### Switch set to boot image 2 Change your baud rate to 9600 bps and power cycle the switch OR ProLiant p-Class GbE2 Interconnect Switch - PPCBoot 2.x.x. To download GbE2 Switch Boot Code or GbE2 Switch OS Image use 1K Xmodem at 115200 Total bytes transferred: 0x1ef400 Extracting images. Do *NOT* power cycle the switch Please choose the GbE2 Switch OS Image to upgrade [1|2|n] : n No update. Change your baud rate to 9600 bps and power cycle the switch

The GbE2 Interconnect Switch fails to get The GbE2 Interconnect Switch is not its IP settings from the BOOTP server, connected properly to the network. even though by default it is configured for BOOTP. IMPORTANT: If you are running in spanning tree mode, it can take up to 2 minutes for the GbE2 Interconnect Switch to get its IP settings. The BOOTP server is not available on the network or VLAN that is attached to the switch management port. The BOOTP server cannot offer IP settings to the GbE2 Interconnect Switch because no IP addresses are available. The GbE2 Interconnect Switch timed out its request for IP settings. Cannot connect to the GbE2 Interconnect Switch console interface remotely using Telnet.
Check the cable and connections and make sure that there is network connectivity between the GbE2 Interconnect Switch and the BOOTP server. Make sure that the BOOTP server is present on the network or VLAN attached to the GbE2 Interconnect Switch. Add additional IP addresses as necessary. Reset the GbE2 Interconnect Switch. From the serial console interface, make sure that the GbE2 Interconnect Switch IP address is configured and valid on your network. Use the correct IP address to establish the Telnet connection with the GbE2 Interconnect Switch.
The GbE2 Interconnect Switch IP address may not be configured or correct.
The setting allowing access to the GbE2 Interconnect Switch using the Telnet interface is disabled.
From the serial console interface, make sure that the Telnet interface is enabled.
The management network address/mask From the serial console interface, make (if used) does not contain the IP address sure that the Management Network of your management station. Address/Mask contains the IP address of your management station.

Troubleshooting 61

Problem Password is not accepted by the GbE2 Interconnect Switch using the remote console interface immediately after a reboot. Cannot connect to the GbE2 Interconnect Switch console interface remotely using SSH. Possible cause The GbE2 Interconnect Switch is still working on network convergence. Possible solution Wait up to 10 seconds, and the password should be accepted.
From the serial console interface, make sure that the GbE2 Interconnect Switch IP address is configured and valid on your network. Use the correct IP address to establish the SSH connection with the GbE2 Interconnect Switch.
The setting allowing access to the GbE2 Interconnect Switch using the SSH interface is disabled.
From the serial console interface, make sure that the SSH interface is enabled and all its settings are configured correctly.
The management network address/mask From the serial console interface, make (if used) does not contain the IP address sure that the Management Network of your management station. Address/Mask contains the IP address of your management station. Cannot connect to the GbE2 Interconnect Switch remotely using the Web interface. The GbE2 Interconnect Switch IP address may not be configured or correct. From the serial console interface, make sure that the GbE2 Interconnect Switch IP address is configured and valid on your network. Use the correct IP address to establish the Web connection with the GbE2 Interconnect Switch.

Problem After forcing the GbE2 Interconnect Switch into the download mode, the console screen displays a message to change the baud rate for your terminal emulation session for XModem transfer and does not display CCCC. Possible cause Your terminal emulation session baud rate does not match the GbE2 Interconnect Switch serial console baud rate in the download mode. Possible solution Change the baud rate of your terminal emulation session to match the GbE2 Interconnect Switch serial console baud rate in the download mode. IMPORTANT: The baud rate for the GbE2 Interconnect Switch serial console in the download mode and runtime mode are two separate settings. The firmware file is not the correct one or is corrupt. Obtain the latest firmware file that is specified for this GbE2 Interconnect Switch.
After starting to download the firmware file, the download fails. The GbE2 Interconnect Switch configuration is corrupt.
An error was made when saving the Reboot the GbE2 Interconnect Switch GbE2 Interconnect Switch configuration. and reload the factory settings. This action clears all settings and restores them to the initial values that were present when the GbE2 Interconnect Switch was purchased. Refer to the HP ProLiant BL p-Class GbE2 Interconnect Switch Command Reference Guide for more information. After reloading the factory settings, reconfigure the GbE2 Interconnect Switch settings.

Troubleshooting 65

accessing switch: procedure, 27; RADIUS authentication, 14 administrator account password, 26 architecture, switch, 10
hardware installation, 21 HP ProLiant BL p-Class C-GbE2 Interconnect Kit: features, 5 HP ProLiant BL p-Class F-GbE2 Interconnect: Kit features, 5 HP ProLiant BL p-Class GbE2 Interconnect Switch: architecture, 10; external components, 16; installing, 21; SNMP MIBs support, 52; supported technologies, 12; troubleshooting, 60 HP ProLiant BL p-Class GbE2 Storage Connectivity Kit, 21
new deployment installation, 22
Open Systems Interconnection (OSI) model, 12 operator account password, 25
Bootstrap Protocol (BOOTP): overview, 14 BSMI regulatory notice, 32, 35
packets, forwarding technology, 12 patch panels, upgrading from, 24 performance features, 6 port trunking, 13 ports: locations, 18; mirroring of, 13; specifications, 37 power-up procedures, initial, 27 protocols, network: BOOTP, 14; overview, 13; specifications, 36

ProLiant BL p-Class GbE2 Interconnect Switch Compatibility with Cisco-based Networks

white paper

Abstract..... 2 Introduction..... 2 Terminology..... 3 Same technology, different form factor.... 3 VLANs and VLAN tagging.... 4 Spanning tree..... 4 Multi-link trunking..... 5 Security..... 6 Management..... 6 Port mirroring.... 7 Multicast traffic.... 7 Network time.... 7 Conclusion..... 7 For more information.... 8

Abstract

This white paper describes the interoperability of the ProLiant BL p-Class GbE2 Interconnect Switch with Cisco-based Ethernet networks consisting of Catalyst switches. This document is not intended to be a guide for deploying a GbE2 Interconnect Switch within a Cisco-based network. For this information, see the Deploying the ProLiant BL p-Class GbE2 Interconnect Switch into a Cisco-based Network white paper1. The intended audience for this paper includes engineers and system administrators familiar with the HP ProLiant BL p-Class system. For readers not familiar with the HP ProLiant BL p-Class system, more information is available at http://h18004.www1.hp.com/products/servers/platforms/index-bl.html. For general information about the p-Class GbE2 Interconnect Switch options, see ProLiant BL p-Class GbE2 Interconnect Switch Overview white paper2.

Introduction

The ProLiant BL p-Class system consists of ProLiant BL server blades, the 6U (10.5 inch) BL p-Class server blade enclosure, network and power infrastructure components, and software that enables adaptive computing optimized for rapid deployment. The p-Class server blade enclosure holds the server blades and two interconnects. Each server contains multiple network interface controllers (NICs). The enclosure has a signal backplane that routes the server blade NIC signals to the interconnects in a redundant, highly available architecture. HP offers a family of interconnect options for a choice of how the Ethernet, as well as Fibre Channel, signals exit the server blade enclosure. Available interconnects include two patch panel pass-through kits and two integrated Ethernet switch kits (interconnect switch kits). The two patch panel options allow all Ethernet network signals to pass through to third-party LAN devices, thus giving customers flexibility in choosing their own switches. The interconnect switch kits provide up to 32-to-1 Ethernet cable consolidation reducing the time to deploy and manage ProLiant BL p-Class systems. The ProLiant BL GbE2 Interconnect Switch is the newest interconnect option available for p-Class systems. The ProLiant BL GbE2 Interconnect Switch is an industry-standard, 24-port all Gigabit Ethernet switch intended for: Applications that require up to 1000 megabits per second (Mb/s) NIC consolidation Connectivity to copper-based 10/100/1000T or fiber-based 1000SX Ethernet networks Fibre Channel storage signal pass-through for the ProLiant BL20p and BL30p series servers Advanced network feature support (including planned future options for layer 3 through 7) Future planned upgradeability for 10 Gigabit Ethernet bandwidth connectivity to the network For more information about the GbE2 Interconnect Switch, see the ProLiant BL p-Class GbE2 Interconnect Switch Overview white paper.1 In a typical application, the GbE2 Interconnect Switches acts as a redundant access switch layer that is in turn connected to the core network often consisting of Catalyst switches from Cisco Systems (Cisco). This white paper identifies the ProLiant BL p-Class GbE2 Interconnect Switch interoperability within a Cisco-based Catalyst switch Ethernet network. Topics discussed include VLANs, spanning tree, multi-link trunking, security, management, and more.
Available at http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-p-interconnect-switch2.html. Available at http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-p-interconnect-switch2.html.

Terminology

Terminology used in this document that differs between Cisco Catalyst switches and the GbE2 Interconnect Switch is identified in Table 1.
Table 1. Network terminology cross reference HP ProLiant GbE2 Interconnect Switch VLAN tagging, 802.1Q tagging port VLAN identification (PVID) link aggregation, multi-link trunking (MLT) spanning tree protocol group (STG) IEEE 802.1s, multiple spanning tree port mirroring Cisco Catalyst switches trunking, VLAN or 802.1q encapsulation VLAN identification (VLANID) EtherChannel, channeling spanning tree instance per VLAN spanning tree (PVST), PVST+ SPAN, RSPAN

Same technology, different form factor
In a typical tiered server network configuration designed with redundancy, two or more network interface controllers (NIC) are used per server. The Ethernet signals from these NICs are routed to two separate access switches that are in turn connected to the core network. One or more crosslink connections are commonly made between the access switches for added availability. The access switch downlink ports are used to collect NIC signals from the servers for aggregation to the network backbone via one or more uplink ports. The GbE2 Interconnect Switch and p-Class blade architecture uses the same technology to provide this function, but in a different form factor (Figure 1).
Figure 1. Typical redundant network configuration

Core Layer

Uplink Ports

Network Core

Access Layer

Layer 2 Switch

Crosslink Ports

Downlink Ports

ProLiant BL server blade enclosure with interconnect switch

Server

The access switches and connections have been moved inside the BL p-Class server blade enclosure. The GbE2 Interconnect Switches become the access switch layer that is in turn connected to the core switch layer. The same network technology is used and the tiered network configuration remains unchanged. Because the interconnect switch is an industry-standard managed layer 2 switch, it is compatible with other industry-standard switches including Catalyst switches from Cisco. The remainder of this paper discusses the GbE2 Interconnect Switch interoperability with Cisco Catalyst switches in the areas of. VLANs and VLAN tagging (VLAN trunking) spanning tree multi-link trunking (EtherChannel) security management port mirroring (SPAN, RSPAN) multicast traffic

VLANs and VLAN tagging

Each GbE2 Interconnect Switch provides 255 port-based IEEE 802.1Q virtual local area networks (VLANs) compatible with Catalyst switches that support this industry standard. Both the Catalyst switches and GbE2 Interconnect Switches utilize VLAN1 as the default VLAN. This permits immediate out-of-the-box passing of Ethernet traffic. To create VLANs across the network, the GbE2 Interconnect Switch supports IEEE 802.3ac VLAN Ethernet frame extensions for 801.2Q tagging3. Each switch port may be individually configured as tagged or untagged. Therefore, GbE2 Interconnect Switch VLANs may span Cisco switches that support the 802.1Q tagging methodology. Although Cisco typically refers to 802.1Q VLAN tagging as VLAN trunking or dot1q trunking, the technologies are the same and, therefore, completely interoperable. The key is to ensure that ports on both ends of the tagged link (or dot1Q trunk) are assigned to same VLANs. The Cisco proprietary VLAN tagging Inter Switch Link (ISL) is an alternative method that predates the IEEE 801.1Q tagging standard. The GbE2 Interconnect Switch does not support ISL. Cisco recommends that new implementations follow the IEEE 802.1q standard and older networks gradually migrate from ISL to allow multi-vendor interoperability, greater field exposure, greater third party support, and, to a lesser degree, 802.1Qs lower encapsulation overhead.4 Lastly, the GbE2 Interconnect Switch cannot be used as a participating node with Ciscos VLAN Trunk Protocol (VTP). However, the interconnect switch may be used as a VTP transparent mode to forward VTP information.

Spanning tree

Spanning tree is enabled by default on the GbE2 Interconnect Switch to ensure that any existing network layer 2 loops are blocked. The GbE2 Interconnect Switch meets the IEEE 802.1D standard and is compatible with Cisco switches that are 802.1D compliant. The bridge priorities, port costs, and port priorities may be manually assigned on the GbE2 Interconnect Switch. This allows the core or other Catalyst switches to be the root bridge.
The IEEE 802.3 standards have been merged into a single standard defined as IEEE 802.3-2002. IEEE 802.3-2002, section 3.5 (Elements of the Tagged MAC Frame) now contains the specifications previously defined in IEEE 802.3ac. Best Practices for Catalyst 4000, 5000, and 6000 Series Switch Configuration and Management, Cisco Systems, Document 13414, October 1, 2003; available at http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a0080094713.shtml.
The GbE2 Interconnect Switch further provides interoperability with Ciscos Per-VLAN Spanning Tree Plus (PVST+) 801.Q tagging proprietary protocol via the use of spanning tree groups (STG). In the GbE2 implementation, an administrator creates an STG and then assigns a VLAN to it. This differs from the Cisco implementation where an administrator creates a VLAN, and then a spanning tree instance (i.e. STG) is automatically created and assigned to the VALN. The PVST+ interoperability feature on the GbE2 Interconnect Switch includes the following: Tagged ports may belong to more than one STG, but untagged ports can belong to only one STG. When a tagged port belongs to more than one STG, egress BPDUs are tagged to identify their STG membership. An untagged port cannot span multiple STGs. Sixteen STGs operating simultaneously are supported per GbE2 Interconnect Switch. The default STG 1 can hold multiple VLANs; all other STGs (groups 216) can hold one VLAN. The GbE2 Interconnect Switch provides two methods to interoperate with PVST+: 1. All GbE2 Interconnect Switch VLANs configured on the ports connected to the Catalyst switches may be added to the default STG (STG 1). 2. An unique GbE2 Interconnect Switch STG may be created for each of the configured VLANs connecting to the Catalyst switches. For rapid spanning tree convergence, many Catalyst switches support Ciscos proprietary features PortFast, UplinkFast, and BackboneFast, as well as the industry-standard IEEE 802.1w. The 802.1w extension is an enhancement to the original 802.1D standard. As noted by Cisco, 802.1w provides similar convergence time improvements to the Cisco methods, but 802.1w provides the added benefit of interoperability between vendors. Support for the 802.1w standard is planned for a future GbE2 Interconnect Switch software release. In the meantime, the GbE2 Interconnect Switch does allow the disabling of spanning tree on a per switch or port basis. This capability is ideal for networks designed without loops or individual switch ports connected to server blades or other devices where a loop does not exist.

Multi-link trunking

Multi-link trunking (MLT), also know as link aggregation, port trunking, and Cisco EtherChannel, combines multiple physical switch ports into a single logical port called a trunk. The bandwidth of the trunk is the aggregate of the bandwidth of the individual links. The industry standard for multi-link trunking is IEEE 802.3ad5. Cisco has developed a similar multi-link trunking method known as EtherChannel. The GbE2 Interconnect Switch supports IEEE 802.3ad (802.3-2002) without LACP6 that is compatible with EtherChannel. The GbE2 Interconnect interoperates with both Fast EtherChannel, providing link aggregation for Fast Ethernet (100MB) ports, and Gigabit EtherChannel, which aggregates Gigabit Ethernet (1000MB) links. The GbE2 Interconnect Switch supports twelve trunks per switch. Each trunk may contain two to six ports providing a 12-Gbps aggregate throughput full duplex. An algorithm automatically applies load balancing to the ports in the trunk. A port failure within the group causes the network traffic to be directed to the remaining ports. Load balancing is maintained whenever a link in a trunk is lost or returned to service. This provides flexible and scalable bandwidth with resiliency and load sharing across the links between the GbE2 Interconnect Switch and Cisco
The IEEE 802.3 standards have been merged into a single standard defined as IEEE 802.3-2002. IEEE 802.3-2002, section 43 (Link Aggregation) defines the standards specified in IEEE 802.3ad. Link aggregation control protocol (LACP) is an enhancement over EtherChannel and other static multi-link trunking methods. LACP dynamically learns about the link status and takes decisions on which links to use for and load balancing and failback in case of link failure. As a result, IEE 802.3ad with LACP is often called dynamic trunking.
devices. To determine the load balancing decisions, varying methods are used. Catalyst switches may use the packets source MAC (SMAC) address, destination MAC (DMAC) address, source IP (SIP) address, destination IP (DIP) address, or a combination of these methods. The GbE2 Interconnect Switch uses a combination of SMAC and DMAC addresses to make the load balancing decision.

Security

The GbE2 Interconnect Switch supports remote authentication dial-in user service (RADIUS) client, communicating to the network RADIUS server to authenticate and authorize a remote administrator using the protocol definitions specified in RFC 2138 and 2866. The GbE2 Interconnect Switch will integrate into an existing Cisco network that uses this industry-standard authentication and authorization protocol. As is performed on the Catalyst switches, the RADIUS configuration on the GbE2 Interconnect Switch requires the user to specify the IP address of the RADIUS server and the RADIUS secret. For enhanced security, the GbE2 Interconnect Switch permits modification of the RADIUS application port, user-configurable RADIUS server retry and time-out values, and support for SecurID if the RADIUS server can perform an ACE/server client proxy. Both a primary and a secondary RADIUS server may be configured. The industry-standard RADIUS protocol is an alternative to Ciscos proprietary Terminal Access Controller Access Control System Plus (TACACS+) method. Unfortunately, RADIUS and TACACS+ are not compatible. TACACS+ interoperability is planned for a future GbE2 Interconnect Switch firmware upgrade.

Management

The operating system (OS) of the GbE2 Interconnect Switch provides multiple industry-standard methods to easily configure and manage the GbE2 Interconnect Switch. As with many Catalyst switches, the GbE2 Interconnect Switch provides the ability to store in memory redundant OS images and configuration files. The GbE2 Interconnect Switch may be managed and configured via: 1. Command Line Interface (CLI) 2. Browser based interface (BBI) 3. Simple Network Management Protocol (SNMP) The GbE2 Interconnect Switch CLI consists of a hierarchal menu/command-based hybrid interface that has a Linux/Unix type look and feel. The hybrid approach permits new users to see available parameters for each command and walks them through command parameters one-by-one. It also allows advanced users to perform command stacking and abbreviations similar to Cisco devices. Industry-standard scripting capabilities are supported for simplified configuration management and switch deployment. The web console or BBI can be utilized via Internet Explorer or Netscape Navigator over a TCP/IP network. Thus, access is possible throughout the Cisco-based network. Like the CLI, the BBI provides the ability to view and alter GbE2 Interconnect Switch information and settings. The GbE2 Interconnect Switch supports industry-standard SNMP management information bases (MIBs), HP enterprise switch MIBs, and environmental traps. The SNMP agents are preinstalled in the interconnect switch firmware. Redundant community strings and SNMP trap manager hosts can be configured per switch. This capability allows the interconnect switch to be monitored remotely from an SNMP network management station such as HP Systems Insight Manager7 and HP OpenView8. Additionally, any SNMP-based manager within CiscoWorks or other third party offering may also be used provided it can read industry-standard MIBs and process industry-standard traps.

Available at http://h18000.www1.hp.com/products/servers/management/hpsim/index.html. Available at http://www.hp.com/products1/softwareproducts/software/openview/index.html.
The GbE2 Interconnect Switch provides other familiar management capabilities consistent with Catalyst switches. These include a local console port with XModem support, access through Telnet and secure shell (SSH), and deployment, back-up, and restore capabilities using trivial file transfer protocol (TFTP) and secure copy protocol (SCP).

Port mirroring

The GbE2 Interconnect Switch port mirroring feature provides the ability send a copy of any network traffic that enters or leaves the switch to a designated (monitor) port for examination by a network analyzer. Traffic ingressing the port, egressing the port, or both may be monitored. The GbE2 port mirroring provides similar functionality as the switched port analyzer (SPAN) feature on Catalyst switches. The GbE2 Interconnect Switch also interoperates with the Cisco Remote SPAN (RSPAN) feature. By targeting mirrored GbE2 data to a port connected to a Catalyst switch utilizing RSPAN, the traffic can be captured for analysis on the designated Catalyst monitoring port.

Multicast traffic

Multicasting reduces network traffic and congestion. The GbE2 Interconnect Switch has the ability to pass IP multicast traffic that is forwarded to it from Catalyst switches. Support for actively participating within internet group management protocol (IGMP) multicasting is not provided on the GbE2 Interconnect Switch at this time, but this support is planned for a future release. Meanwhile, provided the VLANs between the GbE2 Interconnect and Catalyst switches are correctly configured, the GbE2 Interconnect Switch will automatically forward IP multicast traffic out all ports on the VLAN from which the multicast traffic was received.

Network time

The industry standard network time protocol (NTP) synchronizes timekeeping among a set of distributed network devices and time servers. This synchronization allows events to be correlated when system logs are created and other time-specific events occur. As with Catalyst switches, the GbE2 Interconnect Switch provides NTP support. On the GbE2 Interconnect Switch, users can specify the NTP server IP address, update interval, and time zone, and then the Cisco and GbE2 switches are synchronized to the same network time. The GbE2 Interconnect Switch includes a battery-backed real time clock that will maintain the time in the event the NTP server is unavailable.

Conclusion

With the introduction of industry-standard blade servers, the number of Ethernet connections and cables within a rack can quickly become overwhelming. To consolidate theses cables, blade manufacturers introduced the concept of integrated Ethernet switches. For network administrators to successfully deploy these new blade switches within their existing networks, interoperability with existing devices and compliance to network industry standards is a must. Available as one of the several interconnect options for ProLiant BL p-Class systems, the GbE2 Interconnect Switch is ideal for reducing Ethernet network cabling and the time required to deploy, manage, and service ProLiant BL p-Class systems. Its advanced feature support and compliance to IEEE and other Ethernet protocols permits interoperability with networks based on Cisco Catalyst switches and devices from other common vendors found in todays datacenter.

For more information

For additional information, refer to the resources detailed below.
Resource description ProLiant BL p-Class system home page ProLiant BL p-Class GbE2 Interconnect Switch home page ProLiant BL p-Class Networking Overview white paper ProLiant BL p-Class GbE2 Interconnect Switch Overview white paper Deploying the ProLiant BL p-Class GbE2 Interconnect Switch into a Cisco-based Network ProLiant BL p-Class GbE2 Interconnect Switch user guides Web address
http://h18004.www1.hp.com/products/servers/proliant-bl/pclass/index.html http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-pinterconnect-switch2.html http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-pinterconnect-switch2.html http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-pinterconnect-switch2.html http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-pinterconnect-switch2.html http://h18004.www1.hp.com/products/servers/proliant-bl/p-class/bl-pinterconnect-switch2.html
2004 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Catalyst, Cisco, Cisco Systems, and EtherChannel are registered trademarks of Cisco Systems, Inc. All other trademarks or registered trademarks mentioned in this document are the property of their respective owners. 5982-5037EN, 05/2004