1539By default, the interval for label readvertisement in DU mode is 30 seconds.Example # Set the DU mode label readvertisement interval to 100 seconds for the publicnetwork LDP. system-view[Sysname] mpls ldp[Sysname-mpls-ldp] du-readvertise timer 100# Set the DU mode label readvertisement interval to 100 seconds for LDP instancenamed vpn1. system-view[Sysname] mpls ldp vpn-instance vpn1[Sysname-mpls-ldp-vpn-instance-vpn1] du-readvertise timer 100graceful-restart (MPLS LDP view)Syntax graceful-restartundo graceful-restartView MPLS LDP viewParameter NoneDescription Use the graceful-restart command to enable MPLS LDP Graceful Restart (GR).Use the undo graceful-restart command to disable MPLS LDP GR.By default, MPLS LDP GR is disabled.Note that enabling and disabling GR may remove all the sessions and instancesand the LSPs based on the sessions, which need to be reestablished.Example # Enable MPLS LDP GR. system-view[Sysname] mpls lsr-id 1.1.1.1[Sysname] mpls[Sysname-mpls] quit[Sysname] mpls ldp[Sysname-mpls-ldp] graceful-restartgraceful-restart mpls ldpSyntax graceful-restart mpls ldpView User viewParameter None