Installation guide

A Sample VLAN Topology

Chapter 7

IMPORTANT You must use an RJ-45/DB-9 Adapter Cable (supplied with your HP bh5700 ATCA 14-Slot

Blade Server) in combination with a modem eliminator cable (with a DB-9 female connector on

each end) in order to connect your terminal or laptop computer to a serial port on the 14-Slot

Shelf.

Serial access (RS-232) is set to 8 data bits, 1 stop bit, no parity, and 9600 baud. After connecting your terminal

or laptop to the base serial port, login as root.

Viewing the Default (or Current) Ethernet Switch Blade Configuration

To view the default (or current) Switch Blade base and fabric configuration, complete the following:

• Ensure that your terminal or laptop computer is connected to either the base or fabric serial interface

RJ-45 connector, as desired. See Figure 7-7 on page 70 and Figure 7-8 on page 70.

• Issue the following commands:

zconfig -a

This command shows the base or fabric interfaces that are currently configured into VLANs.

ifconfig

This command shows the network assignments for the defined base or fabric VLANs and OOB port.

Saving Your Changes When Rebooting the Switch Blade

The Ethernet Switch Blade always boots from a standard read-only OS image (OpenArchitect version 3.2.2).

Any changes you make are loaded from flash memory after the read-only OS image is booted. In order to

make user-level changes persistent, you must execute a zsync command prior to rebooting the Switch Blade.

NOTE It is a good idea to make corresponding changes to both of the Ethernet Switch Blades at the

same time in order to keep your network topology consistent across the 14-Slot Shelf.

To save user-level changes and reboot the Switch Blade, issue the following commands:

zsync

reboot

Another option when rebooting the Switch Blade is to load the read-only OS, but not load any user-level

changes at boot time. To do this, issue the following command:

reboot -i

After performing a reboot -i, if you want to erase all user-level persistent changes, execute a zsync

command after the OS has rebooted from the reboot -i command.

Configuring SNMP

The Switch Blade automatically starts the snmpd daemon when it boots. However, you must make a change

to the snmpd.conf file on the Switch Blade, and you should also install a copy of the ShMM SNMP MIB onto

your system manager (that is, into the system where HP OpenView and other management applications that

manage the shelf are running).

On the Switch Blade, open the file /usr/share/snmp/snmpd.conf, and add the following SNMP proxy

directive, shown highlighted here: