enable ospf capability opaque-lsa

enable ospf capability opaque-lsa


Enables opaque LSAs across the entire system.

Syntax Description

This command has no keywords or variables.



Usage Guidelines

Opaque LSAs are a generic OSPF (Open Shortest Path First) 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 ExtremeXOS 10.1.

Platform Availability

This command is available on platforms with an Advanced Edge or Core license as described in the ExtremeXOS 22.2 Feature License Requirements document.