The graceful-restart command enables GR of the OSPFv3 process.
The undo graceful-restart command disables GR of the OSPFv3 process.
By default, OSPFv3 GR is not enabled.
graceful-restart [ period period | ack-time time | retransmit-interval interval | lsa-checking-ignore | planned-only ] *
undo graceful-restart [ period [ period ] | ack-time [ time ] | retransmit-interval [ interval ] | lsa-checking-ignore | planned-only ] *
| Parameter | Description | Value |
|---|---|---|
| period period | Specifies the GR period. | The value is an integer ranging from 1 to 1800, expressed in seconds. By default, the value is 120 seconds. |
| ack-time time | Specifies the period during which a router waits for the Grace-LSA Ack message from its neighbor. | The value is an integer ranging from 1 to 30, expressed in seconds. By default, the value is 15 seconds. |
| retransmit-interval interval | Specifies the interval for retransmitting Grace-LSAs. | The value is an integer ranging from 1 to 5, expressed in seconds. By default, the value is 5 seconds. |
| lsa-checking-ignore | Indicates that strict check is not performed on LSAs. By default, routers perform strict check on received LSAs. | - |
| planned-only | Indicates that routers support planned-GR only. By default, routers support planned-GR and unplanned-GR. | - |