Configures the router as a graceful OSPF restart helper router.
| all | Specifies all This command is available on the ExtremeSwitching X440-G2, X450-G2, X460-G2, X465, X590, X620, X670-G2, X690, X695, X870, 5320, 5420, 5520 series switches.s |
| vlan-name | Specifies a VLAN name. |
| area-identifier | Specifies an OSPF area. |
| router-identifier | Specifies the router ID of the remote router of the virtual link. |
| none | Do not act as a graceful OSPF restart helper router. |
| planned | Only act as a graceful OSPF restart helper router for planned restarts. |
| unplanned | Only act as a graceful OSPF restart helper router for unplanned restarts. |
| both | Act as a graceful OSPF restart helper router for both planned and unplanned restarts. |
The router default is none.
This command configures the router as a graceful OSPF restart helper router for a single or multiple routers. When the router is acting as a helper, it will continue to advertise the restarting router as if it was fully adjacent.
One OSPF interface may not help more than one restarting router. An OSPF interface may not enter helper mode when the router is performing a graceful restart. All the interfaces to a neighbor router must be configured as graceful restart helpers, or the router will not support graceful restart for its neighbor.
The following command configures a router to be a graceful OSPF helper router for planned restarts for all routers in area 10.20.30.40:
configure ospf area 10.20.30.40 restart-helper planned
This command was first available in ExtremeXOS 11.3.
This command is available on platforms with an Advanced Edge or Base license, or higher, as described in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.