Dell Force10 S4820T FTOS Command Reference Guide - Page 915
graceful-restart ietf, graceful-restart interval
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graceful-restart ietf e Enable Graceful Restart on an IS-IS router. Syntax graceful-restart ietf To return to the default, use the no graceful-restart ietf command. 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 8.3.19.0 Version 8.3.12.0 Version 8.3.1.0 Introduced on S4820T Introduced on S4810 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 8.3.19.0 Version 8.3.12.0 Version 8.3.1.0 Introduced on S4820T Introduced on S4810 Introduced on the E-Series Intermediate System to Intermediate System (IS-IS) | 915