Reference Guide

738 | IPv6 Border Gateway Protocol (IPv6 BGP)
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Usage
Information
If you enable this command, use the capture bgp-pdu max-buffer-size * command to recompute the
best path.
bgp bestpath med confed
c e
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
Command
History
Usage
Information
The software compares the MEDs only if the path contains no external autonomous system numbers.
If you enable this command, use the capture bgp-pdu max-buffer-size * command to recompute the
best path.
bgp bestpath med missing-as-best
c e
During path selection, indicate preference to paths with missing MED (MULTI_EXIT_DISC) over
those 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
Command
History
Usage
Information
The MED is a 4-byte unsigned integer value and the default behavior is to assume a missing MED as
4294967295. This command causes a missing MED to be treated as 0. During the path selection, paths
with a lower MED are preferred over those with a higher MED.
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.4.1.0 Introduced on E-Series TeraScale
Version 8.4.2.1 Introduced on C-Series and S4810.
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.4.1.0 Introduced on E-Series TeraScale
Version 8.4.2.1 Introduced on C-Series and S4810.
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.4.1.0 Introduced on E-Series TeraScale