Installation guide

A Sample VLAN Topology

Chapter 7

inet addr:10.35.50.41 Bcast:10.255.255.255 Mask:255.0.0.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:1443377 errors:0 dropped:0 overruns:0 frame:0

TX packets:42 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:100

RX bytes:123946159 (118.2 Mb) TX bytes:1982 (1.9 Kb)

Base address:0xc000

Two VLANs have now been defined; one for the cross-connect to the opposite-side ShMM, and

another for the management LAN.

NOTE To enable vlan2 to pass traffic to your management network, you must run a

network cable from the front panel of the Switch Blade (RJ-45 connector labeled 12)

to a network connector in your management network.

NOTE Make the same set of changes to the redundant, failover Ethernet Switch Blade at

this time in order to maintain High Availability integrity for the 14-Slot Shelf.

Configuring the Control LAN and Remaining Base Interfaces

You are now ready to configure the remaining Ethernet Switch Blade base interfaces, which will become

vlan3. Note that vlan3 includes zre0 to zre11, and zre14 to zre21 on the Ethernet Switch Blade front panel.

The function of vlan3 is to serve as the Control LAN.

You do not need to assign an IP address to this VLAN, because the intent is that this VLAN merely passes

traffic through to endpoints defined elsewhere in the14-Slot Shelf. Any control plane traffic to the 14-Slot

Shelf will come in via vlan3, which (acting as a switch) will send the traffic to the appropriate blade in the

14-Slot Shelf.

IMPORTANT When configuring the base interfaces on the HP bc2100 ATCA Server Blades in this topology,

the Server Blade IP address must reside within the control network space to properly connect

to the 14-Slot Shelf and to the outside enterprise.

To build vlan3, complete the following steps:

Step 1. Add the following S23base rc script to the /etc/rcZ.d directory to ensure that vlan3 is recreated

when you reboot the Ethernet Switch Blade:

#!/bin/sh

# /etc/rcZ.d/S23base

# rc script to build the base interface VLAN for

# the ATCA shelf.

set -u