The advertise link attributes command enables the IS-IS process to advertise link attribute TLVs in LSPs. The link attribute includes an IP address and an interface index.
The undo advertise link attributes command disables the IS-IS process from releasing link attribute TLVs in LSPs.
By default, the link attribute advertisement function is disabled on an IS-IS process.
Usage Scenario
To enable the IS-IS process to advertise link attributes, run the cost-style command in the IS-IS view to set the cost type of IS-IS packets to wide, compatible, or wide-compatible.
This command is used to control the attribute advertisement of TLV 22, and the IPv4 address family of the corresponding link must be active.