Bgp Always-Compare-Med - D-Link DGS-6600-48T Cli Reference Manual

DGS-6604

bgp always-compare-med

bgp always-compare-med
no bgp always-compare-med
Syntax
Default
Command Mode
Usage Guideline
Example
Switch(config)# router bgp 65534
Switch(config-router)# bgp always-compare-med
CLI Reference Guide
Use this command to compare the Multi-Exit Discriminator (MED) for paths from
neighbors in different autonomous systems. Use the no bgp always-compare-
med command to disallow the comparison.
None
Disabled
Router configuration
The MED, as stated in RFC 1771, is an optional nontransitive attribute that is a
four octet non-negative integer. The value of this attribute may be used by the
BGP best path selection process to discriminate among multiple exit points to a
neighboring autonomous system.
The MED is one of the parameters that is considered when selecting the best
path among many alternative paths. The path with a lower MED is preferred over
a path with a higher MED. During the best-path selection process, MED
comparison is done only among paths from the same autonomous system. The
bgp always-compare-med command is used to change this behavior by
enforcing MED comparisons between all paths, regardless of the autonomous
system from which the paths are received.
The bgp deterministic-med command on page 75 can be configured to
enforce a deterministic comparison of the MED value between all paths received
from within the same autonomous system.
This example shows how to configure the comparison of the MED from
alternative paths, regardless of the autonomous system from which the paths are
received:
bgp always-compare-med
67