Default Bgp Configuration - Cisco Catalyst 3550 series Software Configuration Manual

Configuring BGP
For detailed descriptions of BGP configuration, refer to the "Configuring BGP" chapter in the Cisco IOS
IP and IP Routing Configuration Guide. For details about specific commands, refer to the Cisco IOS IP
and IP Routing Command Reference for Release 12.1. For a list of BGP commands that are visible but
not supported by the switch, see
12.1(19)EA1."

Default BGP Configuration

Table 31-11
the specific commands in the Cisco IOS IP and IP Routing Command Reference for Release 12.1.
Table 31-11 Default BGP Configuration
Feature
Aggregate address
AS path access list
Auto summary
Best path
BGP community list
BGP confederation identifier/peers
BGP Fast external fallover
BGP local preference
BGP network
BGP route dampening
BGP router ID
Default information originate
(protocol or network redistribution)
Default metric
Distance
Catalyst 3550 Multilayer Switch Software Configuration Guide
31-46
Appendix C, "Unsupported CLI Commands in Cisco IOS Release
shows the basic default BGP configuration. For the defaults for all characteristics, refer to
Default Setting
Disabled: None defined.
None defined.
Enabled.
• The router considers as-path in choosing a route and does not compare similar
routes from external BGP peers.
Compare router ID: Disabled.
•
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).
•
• Identifier: None configured.
• Peers: None identified.
Enabled.
100. The range is 0 to 4294967295 with the higher value preferred.
None specified; no backdoor route advertised.
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.
•
The IP address of a loopback interface if one is configured or the highest IP address
configured for a physical interface on the router.
Disabled.
Built-in, automatic metric translations.
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).
•
Chapter 31 Configuring IP Unicast Routing
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