Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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neighbor fall-over

Enable or disable fast fall-over for BGP neighbors.

Syntax

neighbor { ipv6-address | peer-group-name} fall-over

To disable, use the no neighbor { ipv6-address | peer-group-name} fall-over command.

Parameters

ipv6-address	Enter the IPv6 address in the x:x:x:x::x format. NOTE: The :: notation specifies successive hexadecimal fields of zeros.
peer-group-name	Enter the name of the peer group.

Defaults

Disabled.

Command Modes

ROUTER BGP

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.2(0.0)	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

When you enable fall-over, BGP keeps track of IP or IPv6 reachability to the peer remote address and the peer local address. Whenever either address becomes unreachable (for examle, no active route exists in the routing table for peer IP or IPv6 destination/local address), BGP brings down the session with the peer.

Related Commands

show ip bgp ipv6 unicast neighbors — displays IPv6 routing information exchanged by BGP neighbors.