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BGP and BGP4+ Introduction
Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
1.14 AlliedWare Plus
TM
Operating System - Software Version 5.4.3-2.6 C613-50032-01 REV D
To configure BGP4+ path filtering, use the following commands starting in Global
Configuration mode:
How to disable next hop processing for BGP or
BGP4+ updates
You can configure the software to disable next hop processing for BGP and BGP4+
updates to a neighbor.
For BGP, to disable next hop processing and provide a specific address to be used instead
of the next hop address, use the command below in Router Configuration mode:
For BGP4+, to disable next hop processing and provide a specific address to be used
instead of the next hop address, use the command below in Address Family Configuration
mode:
Configuring this command causes the current router to advertise its peering address as
the next hop for the specified neighbor. Therefore, other BGP neighbors will forward to it
packets for that address.
awplus(config)#
ip as-path access-list (BGP and
BGP4+)
This command defines a BGP-related access list.
awplus(config)#
router bgp <asn>
This command enters Router Configuration mode
awplus(config-router)#
address-family ipv6 [unicast]
This command enters Address Family Configuration mode
awplus(config-router-af)#
neighbor <neighborid>
filter-list <listname> {in|out}
This command establishes a BGP4+ filter for an IPv6 path in the
Address Family Configuration mode.
awplus(config-router)#
neighbor <neighborid>
next-hop-self
This command disables next hop processing on BGP updates to
an IPv4 neighbor in Router Configuration mode.
awplus(config-router-af)#
neighbor <neighborid>
next-hop-self
This command disables next hop processing on BGP4+ updates
to an IPv6 neighbor in Address Family Configuration mode.