Deployment Guide

332 | Border Gateway Protocol IPv4 (BGPv4)
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Usage
Information
If you enable this command, use the clear ip bgp ipv4 unicast soft * command to recompute the best
path.
Command
History
bgp bestpath as-path multipath-relax
c
Include prefixes received from different AS paths during multipath calculation.
Syntax
bgp bestpath as-path multipath-relax
To return to the default BGP routing process, use the no bgp bestpath aspath multipath-relax
command.
Defaults
Disabled
Command Modes
ROUTER BGP
Command
History
Usage
Information
The bestpath router bgp configuration mode command changes the default bestpath selection
algorithm. The multipath-relax option allows loadsharing across providers with different (but
equal-length) autonomous system paths. Without this option, ECMP expects the AS paths to be
identical for loadsharing.
bgp bestpath med confed
c e s
Enable MULTI_EXIT_DISC (MED) attribute comparison on paths learned from BGP confederations.
Syntax
bgp bestpath med confed
To disable MED comparison on BGP confederation paths, enter no bgp bestpath med confed.
Defaults
Disabled
Command Modes
ROUTER BGP
Usage
Information
The software compares the MEDs only if the path contains no external autonomous system numbers. If
you enable this command, use the clear ip bgp ipv4 unicast soft * command to recompute the best path.
Command
History
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
Version 8.4.7.0 Introduced on the C-Series.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series