Installation guide

A Sample VLAN Topology

Chapter 7

zre13 = untag1

zre12 = untag2

zre0..11, zre14..21 = untag3

ifconfig zhp2

zhp2 Link encap:Ethernet HWaddr 00:11:65:09:EC:1A

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:3582 errors:0 dropped:0 overruns:0 frame:0

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

collisions:0 txqueuelen:100

RX bytes:549764 (536.8 Kb) TX bytes:0 (0.0 b)

Base address:0xc000

Three of the VLANs in the sample topology have now been defined; one for the cross connect to the

opposite side ShMM, a second for the management LAN external connection, and a third for the

remaining base interfaces in the 14-Slot Shelf.

IMPORTANT Enable vlan3 to pass traffic to the control network. You must run a network cable

from the front panel of the Switch Blade (choose one of the RJ-45 connectors labeled

14 or 15) to a network connector in your control 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 Inter-Switch Link and Same Side Shelf Manager (zre22 to 23 base)

You are now ready to configure vlan4 of our sample topology, which is the Inter-Switch Link (ISL) and the

connection to the same side ShMM. This VLAN consists of a 2 base interfaces (zre22 which is the same side

ShMM and zre23 which is the ISL).

NOTE In the following script, provide an IP address for zhp3/vlan4 that is compatible with the IP

address you assigned to eth0 on your ShMMs. The IP address shown in the script is only an

example.

To build vlan4, complete the following steps:

Step 1. Add the following S24isl rc script to the /etc/rcZ.d directory to ensure that vlan3 is recreated

when you reboot the Ethernet Switch Blade:

#!/bin/sh