Bgp Enforce-First-As - Dell C9000 Series Reference Manual

bgp enforce-first-as

Disable (or enable) enforce-first-as check for updates received from EBGP peers.
C9000 Series
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
9.9(0.0)
9.2(1.0)
8.3.19.0
8.3.11.1
8.3.7.0
7.8.1.0
7.7.1.0
7.4.1.0
Usage Information This command 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 increments. Use the show ip bgp neighbors
command to view the "failed enforce-first-as check" counter.
If you disable the enforce-first-as command, it can be viewed using the show ip
protocols command.
Related
show ip bgp neighbors
Commands
show ip protocols
Description
Introduced on the C9010.
Introduced on the Z9500.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
Introduced on the S-Series.
Introduced on the C-Series.
Introduced.
— views the information the BGP neighbors exchange.
— views information on routing protocols.
Border Gateway Protocol 430