Specifications

284 ExtremeWare XOS 11.0 Concepts Guide

Interior Gateway Protocols

Redistributing Routes into OSPF

Enable or disable the exporting of BGP, RIP, static, and direct (interface) routes to OSPF using the

following commands:

[ase-type-1 | ase-type-2] {tag <number>} | <policy-map>]

These commands enable or disable the exporting of RIP, static, and direct routes by way of LSA to other

OSPF routers as AS-external type 1 or type 2 routes. The default setting is disabled.

The cost metric is inserted for all Border Gateway Protocol (BGP), RIP, static, and direct routes injected

into OSPF. If the cost metric is set to 0, the cost is inserted from the route. For example, in the case of

BGP export, the cost equals the multiple exit discriminator (MED) or the path length. The tag value is

used only by special routing applications. Use 0 if you do not have specific requirements for using a

tag. (The tag value in this instance has no relationship with IEEE 802.1Q VLAN tagging.)

The same cost, type, and tag values can be inserted for all the export routes, or policies can be used for

selective insertion. When a policy is associated with the export command, the policy is applied on every

exported route. The exported routes can also be filtered using policies.

Verify the configuration using the command:

show ospf

Redistributing Routes into RIP

Enable or disable the exporting of static, direct, BGP-learned, and OSPF-learned routes into the RIP

domain using the following commands:

ospf-inter | ospf-intra | static] [cost <number> {tag <number>} | policy

<policy-name>]

| ospf-inter | ospf-intra | static]

These commands enable or disable the exporting of static, direct, and OSPF-learned routes into the RIP

domain. You can choose which types of OSPF routes are injected, or you can simply choose

ospf, which

will inject all learned OSPF routes regardless of type. The default setting is disabled.

OSPF Timers and Authentication

Configuring OSPF timers and authentication on a per area basis is a shortcut to applying the timers and

authentication to each VLAN in the area at the time of configuration. If you add more VLANs to the

area, you must configure the timers and authentication for the new VLANs explicitly. Use the

command:

configure ospf vlan [<vlan-name> | all] timer <retransmit-interval> <transit-delay>

<hello-interval> <dead-interval> {<wait-timer-interval>}