Enable Ospf Capability Opaque-Lsa - Extreme Networks ExtremeWare XOS Command Reference Manual

Version 11.3

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Table of Contents

OSPF Commands

enable ospf capability opaque-lsa

Enables opaque LSAs across the entire system.

Syntax Description

This command has no arguments or variables.

Usage Guidelines

Opaque LSAs are a generic OSPF mechanism used to carry auxiliary information in the OSPF database.

Opaque LSAs are most commonly used to support OSPF traffic engineering.

Normally, support for opaque LSAs is auto-negotiated between OSPF neighbors. In the event that you

experience interoperability problems, you can disable opaque LSAs.

If your network uses opaque LSAs, all routers on your OSPF network should support opaque LSAs.

Routers that do not support opaque LSAs do not store or flood them. At minimum a well-

interconnected subsection of your OSPF network needs to support opaque LSAs to maintain reliability

of their transmission.

On an OSPF broadcast network, the designated router (DR) must support opaque LSAs or none of the

other routers on that broadcast network will reliably receive them. You can use the OSPF priority

feature to give preference to an opaque-capable router, so that it becomes the elected DR.

For transmission to continue reliably across the network, the backup designated router (BDR) must also

support opaque LSAs.

The following command enables opaque LSAs across the entire system:

enable ospf capability opaque-lsa

This command was first available in ExtremeWare XOS 10.1.

Platform Availability

This command is available on all platforms.

ExtremeWare XOS 11.3 Command Reference

Extremeware xos 11.3