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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 35 Configuring IP Unicast Routing
Configuring BGP
For detailed descriptions of BGP configuration, see the “Configuring BGP” chapter in the “IP Routing
Protocols” part of the Cisco IOS IP Configuration Guide, Release 12.2. For details about specific
commands, see the Cisco IOS IP Command Reference, Volume 2 of 3: Routing Protocols, Release
12.2.For a list of BGP commands that are visible but not supported by the switch, see
Appendix C,
“Unsupported Commands in Cisco IOS Release 12.2(50)SE.”
Default BGP Configuration
Ta b l e 35-9 Default BGP Configuration
Feature Default Setting
Aggregate address Disabled: None defined.
AS path access list None defined.
Auto summary Enabled.
Best path • The router considers as-path in choosing a route and does not compare similar
routes from external BGP peers.
• Compare router ID: Disabled.
BGP community list • Number: None defined. When you permit a value for the community number, the
list defaults to an implicit deny for everything else that has not been permitted.
• Format: Cisco default format (32-bit number).
BGP confederation identifier/peers • Identifier: None configured.
• Peers: None identified.
BGP Fast external fallover Enabled.
BGP local preference 100. The range is 0 to 4294967295 with the higher value preferred.
BGP network None specified; no backdoor route advertised.
BGP route dampening Disabled by default. When enabled:
• Half-life is 15 minutes.
• Re-use is 750 (10-second increments).
• Suppress is 2000 (10-second increments).
• Max-suppress-time is 4 times half-life; 60 minutes.
BGP router ID The IP address of a loopback interface if one is configured or the highest IP address
configured for a physical interface on the router.
Default information originate
(protocol or network redistribution)
Disabled.
Default metric Built-in, automatic metric translations.
Distance • External route administrative distance: 20 (acceptable values are from 1 to 255).
• Internal route administrative distance: 200 (acceptable values are from 1 to 255).
• Local route administrative distance: 200 (acceptable values are from 1 to 255).
Distribute list • In (filter networks received in updates): Disabled.
• Out (suppress networks from being advertised in updates): Disabled.
Internal route redistribution Disabled.
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