Alcatel-Lucent 6850-48 Guida Di Riferimento
BGP Commands
page 44-230
OmniSwitch CLI Reference Guide
September 2009
ipv6 bgp neighbor next-hop-self
Configures router to advertise its peering address as the next hop address for the specified neighbor.
ipv6 bgp neighbor ipv6_address [next-hop-self]
no ipv6 bgp neighbor ipv6_address [next-hop-self]
Syntax Definitions
ipv6_address
A 128-bit IPv6 address for the BGP peer.
Defaults
By default, the next-hop-self parameter of BGP updates is disabled.
Platforms Supported
OmniSwitch 6850, 6855, 9000, 9000E
Usage Guidelines
• Use the no form of this command to disable the next-hop-self parameter.
• In meshed networks, the BGP peer may not have direct connections to other peers. When such a peer
receives route updates from these distant peers (via other peers), it may treat the remote peer as if it
were the next hop in the routing path. Packet forwarding will not work in such a case because no direct
connection exists. This command allows the peer to deem itself the next hop on the routing path so that
the two non-connected peers can route packets. This peer would have a direct connection to both peers
that want to exchange packets.
were the next hop in the routing path. Packet forwarding will not work in such a case because no direct
connection exists. This command allows the peer to deem itself the next hop on the routing path so that
the two non-connected peers can route packets. This peer would have a direct connection to both peers
that want to exchange packets.
• The BGP peer is restarted after issuing this command.
Examples
-> ipv6 bgp neighbor 2001::2 next-hop-self
-> no ipv6 bgp neighbor 2001::2 next-hop-self
Release History
Release 6.1.5; command was introduced.
Related Commands
MIB Objects
alaBgpPeer6Table
alaBgpPeer6Addr
alaBgpPeer6NextHopSelf
Displays the configured IPv6 BGP peers.