Dell Force10 S25N-S50N FTOS Command Line Reference Guide FTOS 8.4.2.7 E-Series - Page 831
graceful-restart interval, graceful-restart t1
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Parameters ietf Enter ietf to enable Graceful Restart on the IS-IS router. Defaults Default is Graceful Restart disabled Command Modes ROUTER ISIS Command History Version 8.3.1.0 Introduced on the E-Series Usage Information A Restart TLV included in every Graceful Restart enabled router's HELLO PDUs. This enables the (re)starting as well as the existing ISIS peers to detect the GR capability of the routers on the connected network. A flag in the Restart TLV contains Restart Request (RR), Restart Acknowledge (RA) and Suppress Adjacency Advertisement (SA) bit flags. The ISIS Graceful Restart enabled router can co-exist in mixed topologies where some routers are Graceful Restart enabled and others are not. For neighbors that are not Graceful Restart enabled, the restarting router brings up the adjacency per the usual methods. graceful-restart interval e Set the Graceful Restart grace period, the time during which all Graceful Restart attempts are prevented. Syntax graceful-restart interval minutes To return to the default, use the no graceful-restart interval command. Parameters minutes Range: 1-20 minutes Default: 5 minutes Defaults 5 minutes Command Modes ROUTER ISIS Command History Version 8.3.1.0 Introduced on the E-Series graceful-restart t1 e Set the Graceful Restart wait time before unacknowledged restart requests are generated. This is the interval before the system sends a Restart Request (an IIH with RR bit set in Restart TLV) until the CSNP is received from the helping router. Syntax graceful-restart t1 {interval seconds | retry-times value} To return to the default, use the no graceful-restart t1command. Intermediate System to Intermediate System (IS-IS) | 831