Clear Ip Bgp External - D-Link xStack DGS-3620 Series Reference Manual

DGS-3620 m/ mSW Rls. 1.02.000

2-30 clear ip bgp external

Syntax Description
in
prefix-filter
out
soft
Default
Command Mode
Usage Guideline
CLI Reference Guide
To reset external Border Gateway Protocol (eBGP) peering sessions using hard or
soft reconfiguration, use this command in privileged mode.
clear ip bgp external [soft [{in [prefix-filter] | out}]]
(Optional) Initiates inbound reconfiguration. If neither the in nor out keywords are
specified, both inbound and outbound sessions are reset.
(Optional) Clears the existing outbound route filter (ORF) prefix list to trigger a new
route refresh or soft reconfiguration, which updates the ORF prefix list.
(Optional) Initiates inbound or outbound reconfiguration. If neither the in nor out
keywords are specified, both inbound and outbound sessions are reset.
(Optional) Initiates a soft reset. Does not tear down the session.
None.
Privileged mode.
The clear ip bgp external command can be used to initiate a hard reset or soft
reconfiguration of eBGP neighbor sessions.
If a hard reset is applied to the inbound session, the inbound session will be torn
down and the local inbound routing table and the remote outbound routing table will
be cleared.
If a soft reset is applied to the inbound session, the session will not be rebuilt but the
local inbound routing table will be cleared and needs to be rebuilt.
If a soft reconfiguration inbound is enabled, then the routing table can be rebuilt
based on the stored route updates information. If a soft reconfiguration inbound is
disabled, then the local router will send the route refresh request to the neighbor to
ask for the route refresh.
When the inbound session is soft reset with the prefix filter option, and the capability
orf prefix-list is enabled in the send direction, then the local BGP will send 'clear the
routing table', and notify the remote neighbor for the prefix filter.
This is a way to notify the neighbor of the prefix filter whenever a change is made to
the prefix filter.
clear ip bgp external
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