isis ipv6 suppress-reachability
Function
The isis ipv6 suppress-reachability command enables IS-IS to suppress the advertisement of interface IPv6 addresses to reuse the interface IPv6 addresses.
The undo isis ipv6 suppress-reachability command restores the default configuration.
By default, IS-IS does not suppress the advertisement of interface IPv6 addresses.
Format
isis ipv6 suppress-reachability [ level-1 | level-1-2 | level-2 ]
undo isis ipv6 suppress-reachability
Parameters
| Parameter | Description | Value |
|---|---|---|
| level-1 | Suppresses the advertisement of only Level-1 interface addresses. | - |
| level-1-2 | Suppresses the advertisement of Level-1 and Level-2 interface addresses. | - |
| level-2 | Suppresses the advertisement of only Level-2 interface addresses. | - |
If no level is specified, the advertisement of Level-1-2 interface addresses is suppressed.
Views
Ethernet interface view, Ethernet sub-interface view, Eth-Trunk interface view, Eth-Trunk sub-interface view, Loopback interface view, Tunnel interface view, Dialer interface view, VLANIF interface view
Usage Guidelines
Before using the isis ipv6 suppress-reachability command in an IS-IS process, enable IPv6 in the IS-IS process. To enable IPv6 in an IS-IS process, run the isis ipv6 enable command.
If no topology instance name is specified, an IPv6 base topology is configured by default.