Users Guide

BGP stores all the updates received by the neighbor but does not reset the peer-session.
Entering this command starts the storage of updates, which is required to do inbound soft reconfiguration. Outbound BGP
soft reconfiguration does not require inbound soft reconfiguration to be enabled.
Example of Soft-Reconfigration of a BGP Neighbor
The example enables inbound soft reconfiguration for the neighbor 10.108.1.1. All updates received from this neighbor are
stored unmodified, regardless of the inbound policy. When inbound soft reconfiguration is done later, the stored information is
used to generate a new set of inbound updates.
Dell>router bgp 100
neighbor 10.108.1.1 remote-as 200
neighbor 10.108.1.1 soft-reconfiguration inbound
Route Map Continue
The BGP route map continue feature, continue [sequence-number], (in ROUTE-MAP mode) allows movement from one
route-map entry to a specific route-map entry (the sequence number).
If you do not specify a sequence number, the continue feature moves to the next sequence number (also known as an “implied
continue”). If a match clause exists, the continue feature executes only after a successful match occurs. If there are no
successful matches, continue is ignored.
Match a Clause with a Continue Clause
The continue feature can exist without a match clause.
Without a match clause, the continue clause executes and jumps to the specified route-map entry. With a match clause and a
continue clause, the match clause executes first and the continue clause next in a specified route map entry. The continue
clause launches only after a successful match. The behavior is:
• A successful match with a continue clause—the route map executes the set clauses and then goes to the specified route
map entry after execution of the continue clause.
• If the next route map entry contains a continue clause, the route map executes the continue clause if a successful match
occurs.
• If the next route map entry does not contain a continue clause, the route map evaluates normally. If a match does not
occur, the route map does not continue and falls-through to the next sequence number, if one exists
Set a Clause with a Continue Clause
If the route-map entry contains sets with the continue clause, the set actions operation is performed first followed by the
continue clause jump to the specified route map entry.
• If a set actions operation occurs in the first route map entry and then the same set action occurs with a different value in a
subsequent route map entry, the last set of actions overrides the previous set of actions with the same set command.
• If the set community additive and set as-path prepend commands are configured, the communities and AS
numbers are prepended.
Enabling MBGP Configurations
Multiprotocol BGP (MBGP) is an enhanced BGP that carries IP multicast routes. BGP carries two sets of routes: one set for
unicast routing and one set for multicast routing. The routes associated with multicast routing are used by the protocol
independent multicast (PIM) to build data distribution trees.
MBGP for IPv4 multicast is supported on the switch.
Border Gateway Protocol IPv4 (BGPv4) 209