FTOS Configuration Guide for the C-Series - Force10 Networks

Route map continue
The BGP route map continue feature (in ROUTE-MAP mode) allows movement from one route-map
entry to a specific route-map entry (the sequence number). If the sequence number is not specified, 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.
continue [sequence-number]
Match 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 upon 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 Clause with a Continue Clause
If the route-map entry contains sets with the continue clause, then 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.
MBGP Configuration
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.
514 Border Gateway Protocol (BGP)