17 bgp enforce-first-as, 18 bgp fast-external-failover, Bgp enforce – PLANET XGS3-24042 User Manual

Page 632: First, Bgp fast, External, Failover

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Switch(config-router)#bgp deterministic-med

37.17 bgp enforce-first-as

Command:

bgp enforce-first-as

no bgp enforce-first-as

Function:

Enforces the first AS position of the route AS-PATH contain the neighbor AS number or else

disconnect this peer when the BGP is reviving the external routes. The “no bgp enforce-first-as

command cancels this configuration.

Default:

Not configured.

Command Mode:

BGP route mode

Usage Guide:

This command is usually for avoiding unsafe or unauthenticated routes.

Example:

Switch(config-router)#bgp enforce-first-as

37.18 bgp fast-external-failover

Command:

bgp fast-external-failover

no bgp fast-external-failover

Function:

Fast reset when the BGP neighbor connection varies at the interface other than wait for TCP

timeout. The “no bgp fast-external-failover” command cancels this configuration.

Default:

Configured.

Command Mode:

BGP route mode

Usage Guide:

This command is for immediately cutting of the neighbor connection when the interface is down.

Example:

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