Reference Guide

322 | Border Gateway Protocol IPv4 (BGPv4)
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Command
History
bgp non-deterministic-med
c e s
Compare MEDs of paths from different Autonomous Systems.
Syntax
bgp non-deterministic-med
To return to the default, enter no bgp non-deterministic-med.
Defaults
Disabled (that is, paths/routes for the same destination but from different ASs will not
have their MEDs compared).
Command Modes
ROUTER BGP
Usage
Information
In non-deterministic mode, paths are compared in the order in which they arrive. This
method can lead to FTOS choosing different best paths from a set of paths, depending
on the order in which they are received from the neighbors since MED may or may
not get compared between adjacent paths. In deterministic mode (
no bgp
non-deterministic-med
), FTOS compares MED between adjacent paths within an AS
group since all paths in the AS group are from the same AS.
When you change the path selection from deterministic to non-deterministic, the path
selection for existing paths remains deterministic until you enter clear ip bgp
command to clear existing paths.
Command
History
bgp recursive-bgp-next-hop
c e s
Enable next-hop resolution through other routes learned by BGP.
Syntax
bgp recursive-bgp-next-hop
To disable next-hop resolution, use the no bgp recursive-bgp-next-hop command.
Defaults
Enabled
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series