Configuring Optional Iso Igrp Parameters - Cisco Catalyst 3750 Software Configuration Manual

Chapter 28 Configuring IP Unicast Routing
Command
Step 10 show clns
Step 11
copy running-config startup-config
To disable ISO IGRP routing for the switch, use the no router iso- igrp [tag] global configuration
command.
This example shows how to enable an ISO IGRP routing process defined as test, configure the net for
the processing area 1, domain 47.0004.004d, enable the routing process on Gigabit Ethernet ports 1 and
2, and verify the configuration.
Switch(config)# clns routing
Switch(config)# router iso-igrp test
Switch(config-router)# net 47.0004.004d.0001.212223242526.00
Switch(config-router)# exit
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# clns router iso-igrp test
Switch(config-if)# exit
Switch(config)# interface gigabitethernet1/0/2
Switch(config-if)# clns router iso-igrp test
Switch(config-if)# end
Switch# show clns
Global CLNS Information:
2 Interfaces Enabled for CLNS
NET: 37.0004.004d.0001.2122.2324.2526.00
Configuration Timer: 60, Default Holding Timer: 300, Packet Lifetime 64
ERPDU's requested on locally generated packets
Intermediate system operation enabled (CLNS forwarding allowed)
ISO-IGRP level-1 Router: test
ISO-IGRP level-2 Router: DOMAIN_test

Configuring Optional ISO IGRP Parameters

You can customize certain ISO IGRP parameters, such as timers and split horizon. You can adjust the
metric constants used in the ISO IGRP metric calculation of reliability and load for specific applications.
Note Adjusting the ISO IGRP metrics can dramatically affect network performance, so use care
when making metric adjustments. Because of the complexity of this task, Cisco does not
recommend changing the metrics without guidance from an experienced system designer.
You can also configure the bandwidth and delay associated with an interface to change the metrics. Refer
to the Cisco IOS Interface Command Reference publication for details about the bandwidth and delay
interface configuration commands used to set these metrics. Using these commands to change the values
of the ISO IGRP metrics also changes the values of IP IGRP metrics.
You can adjust the basic timing parameters for ISO IGRP. The timers must be the same for all routers in
the network.
Split horizon blocks information about routes from being advertised out the interface from which the
information originated. This optimizes communication among multiple routers when links are broken.
You can enable or disable split horizon on an interface.
78-15870-01
Purpose
Verify your entries.
(Optional) Save your entries in the configuration file.
Routing for Domain: 37.0004.004D, Area: 0001
Routing for Domain: 37.0004.004D
Catalyst 3750 Metro Switch Software Configuration Guide
Configuring ISO CLNS Routing
28-65