Administrator Guide

clear ip bgp {* | neighbor-address | AS Numbers | ipv4 | peer-group-name} [soft [in |
out]]
– *: Clears all peers.
– neighbor-address: Clears the neighbor with this IP address.
–
AS Numbers: Peers’ AS numbers to be cleared.
– ipv4: Clears information for the IPv4 address family.
– peer-group-name: Clears all members of the specied peer group.
• Enable soft-reconguration for the BGP neighbor specied.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | peer-group-name} soft-reconfiguration inbound
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 reconguration. Outbound BGP soft
reconguration does not require inbound soft reconguration to be enabled.
Example of Soft-Recongration of a BGP Neighbor
The example enables inbound soft reconguration for the neighbor 10.108.1.1. All updates received from this neighbor are stored
unmodied, regardless of the inbound policy. When inbound soft reconguration 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 specic 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 specied route-map entry. With a match clause and a
continue clause, the match clause executes rst and the continue clause next in a specied 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 specied 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 rst followed by the continue
clause jump to the specied route map entry.
• If a set actions operation occurs in the rst route map entry and then the same set action occurs with a dierent 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 congured, the communities and AS
numbers are prepended.
Border Gateway Protocol IPv4 (BGPv4)
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