IBM Nortel Networks L2/3, Manual

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130
Nortel Networks L2/3 Ethernet Switch Module for IBM
Eserver
BladeCenter
Configuring RIP
Routing Information Protocol (RIP) is the oldest and simplest of the dynamic routing protocols
but it is nonetheless adequate for use in many BladeCenter networking configurations. The
configurations in Example 7-31 and Example 7-32 use RIP version 2, which is supported by
all of the devices used in our testing. Example 7-31 shows the addition of RIP to the GbESM
switches. Example 7-32 shows the addition of RIP to the Core switches.
Example 7-31 RIP configuration for the GbESMs
/c/l3/rip/on
/c/l3/rip/if 10/enable
/c/l3/rip/if 20/enable
/c/l3/rip/if 35/enable
/* if 45 for GbESM 2
/c/l3/rip/if 36/enable
/* if 46 for GbESM 2
Example 7-32 RIP configuration for the Core switches
! first remove static routes
no ip route 10.10.0.0 255.255.255.0
no ip route 10.20.0.0 255.255.255.0
!
router rip
version 2
network 10.0.0.0
The redistribute static command was included in our testing to ensure that the route from our
lab network to the rest of the building would be known by all switches in the test environment.
It might or might not be useful in other environments.
Configuring OSPF
Open Shortest Path First (OSPF) is a more complex dynamic routing protocol. It has
advantages over RIP, including the ability to support larger networks and a faster recovery
time from outages. The choice of routing protocol is usually made by those individuals with
responsibility for the overall network design.
These example configurations use OSPF version 2, which is supported by all of the devices
that we used in our testing except the Extreme switches.
Example 7-33 shows the addition of OSPF to the GbESM switches. It is assumed that RIP is
not present on the switches when the configuration of OSPF is begun. The configuration is
identical on the two GbESMs except as noted.
Example 7-33 OSPF configuration for GbESMs
/c/l3/ospf/on
/c/l3/ospf/aindex 0
areaid 0.0.0.9
ena
/c/l3/ospf/if 10
aindex 0
ena
/c/l3/ospf/if 20
aindex 0
ena