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GRES

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    GRES

    Graceful Routing Engine Switchover (GRES) features enable stateful switchover to redundant routing engine

    Feature hierarchy Feature Name
    GRES / Fabric GRES: No hard reset of SIBs during GRES, only soft initialization
    GRES / GRES and L2TP Failover: LAC support
    GRES / GRES and NSR support for pseudowire configurations
    GRES / GRES: ARP entries
    GRES / GRES: Commit check for Routing Engine switchover
    GRES / GRES: Delay in removing subscriber routes after GRES
    GRES / GRES: Dynamic DHCP subscriber access
    GRES / GRES: Dynamically-created IP DEMUX interfaces
    GRES / GRES: Extended DHCP relay agent
    GRES / GRES: Forwarding database
    GRES / GRES: IGMP snooping
    GRES / GRES: LSQ interfaces
    GRES / GRES: Layer 2 and Layer 3 VPN LSPs
    GRES / GRES: Link fault management
    GRES / GRES: Log warning message when the number of ifstate client reaches 60
    GRES / GRES: MAC address Persistence after a Routing Engine switchover
    GRES / GRES: MPLS ingress and egress P2MP LSPs
    GRES / GRES: Multicast protocols
    GRES / GRES: Node by node upgrade
    GRES / GRES: Port security
    GRES / GRES: Stateful GRES on services PICs
    GRES / GRES: VPLS
    GRES / GRES: VRRP (IPv4)
    GRES / GRES: VRRP (IPv6)
    GRES / Graceful Routing Engine Switchover