Users Guide

bgp default local-preference
Change the default local preference value for routes exchanged between internal BGP peers.
Syntax
bgp default local-preference value
To return to the default value, use the no bgp default local-preference command.
Parameters
value Enter a number to assign to routes as the degree of preference for those routes.
When routes are compared, the higher the degree of preference or local preference
value, the more the route is preferred. The range is from 0 to 4294967295. The
default is 100.
Defaults 100
Command Modes ROUTER BGP
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
bgp enforce-first-as
Disable (or enable) enforce-first-as check for updates received from EBGP peers.
Syntax
bgp enforce-first-as
To turn off the default, use the no bgp enforce-first-as command.
Defaults Enabled.
Command Modes ROUTER BGP
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
Usage
Information
This is enabled by default; that is, for all updates received from EBGP peers, BGP ensures that the first
AS of the first AS segment is always the AS of the peer. If not, the update is dropped and a counter is
incremented. To view the failed enforce-first-as check counter, use the show ip bgp ipv6 unicast
neighbors command.
If you disable enforce-first-as, view it using the show ip protocols command.
IPv6 Border Gateway Protocol (IPv6 BGP) 845