The isis ipv6 suppress-reachability command suppresses the advertisement of direct routes on an IPv6 interface in a specified topology.
The undo isis ipv6 suppress-reachability command restores the default configuration of an IPv6 interface.
By default, the advertisement of IPv6 addresses on an interface is not suppressed.
isis ipv6 suppress-reachability [ level-1 | level-1-2 | level-2 ]
undo isis ipv6 suppress-reachability
| Parameter | Description | Value |
|---|---|---|
| level-1 | Suppresses the advertisement of IPv6 addresses is suppressed on Level-1 interfaces. If the level is not specified, Level-1-2 is used by default. | - |
| level-1-2 | Indicates that the advertisement of IPv6 addresses is suppressed on Level-1 and Level-2 interfaces. If the level is not specified, Level-1-2 is used by default. | - |
| level-2 | Indicates that the advertisement of IPv6 addresses is suppressed on Level-2 interfaces. If the level is not specified, Level-1-2 is used by default. | - |
You must enable the IPv6 capability for an IS-IS process before running this command. For details, see the isis ipv6 enable command.
# Suppress the advertisement of IPv6 addresses on VLANIF 10.
<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] isis
[HUAWEI-isis-1] ipv6 enable
[HUAWEI-isis-1] quit
[HUAWEI] interface vlanif 10
[HUAWEI-Vlanif10] ipv6 enable
[HUAWEI-Vlanif10] isis ipv6 enable
[HUAWEI-Vlanif10] isis ipv6 suppress-reachability
# Suppress the advertisement of IPv6 addresses on GE0/0/1.
<HUAWEI> system-view [HUAWEI] ipv6 [HUAWEI] isis [HUAWEI-isis-1] ipv6 enable [HUAWEI-isis-1] quit [HUAWEI] interface gigabitethernet 0/0/1 [HUAWEI-GigabitEthernet0/0/1] undo portswitch [HUAWEI-GigabitEthernet0/0/1] ipv6 enable [HUAWEI-GigabitEthernet0/0/1] isis ipv6 enable [HUAWEI-GigabitEthernet0/0/1] isis ipv6 suppress-reachability