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bgp bestpath as-path multipath-relax
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 as-path multipath-
relax command.
Defaults Disabled
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
The bestpath router bgp configuration mode command changes the default bestpath
selection algorithm. The multipath-relax option allows load-sharing across providers with different
(but equal-length) autonomous system paths. Without this option, ECMP expects the AS paths to be
identical for load-sharing.
bgp bestpath med confed
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 the no bgp bestpath med confed
command.
Defaults Disabled
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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 * command to recompute the best path.
bgp bestpath med missing-as-best
During path selection, indicate preference to paths with missing MED (MULTI_EXIT_DISC) over paths with an advertised MED
attribute.
Syntax
bgp bestpath med missing-as-best
To return to the default selection, use the no bgp bestpath med missing-as-best command.
Defaults Disabled
Command Modes ROUTER BGP
Supported Modes Full–Switch
266 Border Gateway Protocol IPv4 (BGPv4)