PLANET XGS3-24040 - Manual (Page 521)

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Parameter: None.
Default: Not configured.
Command Mode: BGP route mode
Usage Guide: Normally if same prefix routes from several paths, each path will be compared. With this
configuration, the system will only use the path with the smallest MED in the AS (when other main
attributes equal) to compare with other AS. After the best one is elected, select the path among AS with
no regard to MED value.
Example:
Switch(config-router)#bgp deterministic-med
35.18 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.
Parameter: None.
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
35.19 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.
Parameter: None.
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:
Switch(config-router)# bgp fast-external-failover