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Setting Global BGP Parameters Configuring BGP
page 4-20 OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide December 2007
Setting Global BGP Parameters
Many BGP parameters are applied on a router-wide basis. These parameters are referred to as global BGP
parameters. These values are taken by BGP peers in the router unless explicitly overridden by a BGP peer
command. This section describes how to enable or disable BGP global parameters.
Global BGP Defaults
Parameter Description Command Default Value/Comments
Router’s AS number ip bgp autonomous-system 1
Confederation Number ip bgp confederation identifier No confederations configured
Default local preference ip bgp default local-preference 100
IGP synchronization ip bgp synchronization Disabled
AS Path Comparison ip bgp bestpath as-path ignore Enabled
MED comparison on external
peers
ip bgp always-compare-med Disabled
Substitute missing MED value ip bgp bestpath med missing-as-
worst
Lowest (best) possible value
Equal-cost multi-path support ip bgp maximum-paths Disabled
Route reflection ip bgp client-to-client reflection Disabled
Cluster ID in route reflector group ip bgp cluster-id 0.0.0.0
Fast External Fail Over ip bgp fast-external-failover Disabled
Enable logging of peer changes ip bgp log-neighbor-changes Disabled
Route dampening ip bgp dampening Disabled