Command Reference Guide

IPv6 Border Gateway Protocol (IPv6 BGP) | 775
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 capture bgp-pdu
max-buffer-size command to clear existing paths.
bgp recursive-bgp-next-hop
c e
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
Command Modes
ROUTER BGP
Usage
Information
This command is a knob to disable BGP next-hop resolution via BGP learned routes. During
the next-hop resolution, only the first route that the next-hop resolves through is verified for
the route’s protocol source and is checked if the route is learned from BGP or not.
The
clear ip bgp command is required for this command to take effect and to keep the BGP
database consistent. Execute the
clear ip bgp command right after executing this command.
Related
Commands
Command
History
bgp regex-eval-optz-disable
c e
Disables the Regex Performance engine that optimizes complex regular expression with BGP.
Syntax
bgp regex-eval-optz-disable
To re-enable optimization engine, use the no bgp regex-eval-optz-disable command.
Defaults
Enabled by default
capture bgp-pdu
max-buffer-size
Set the size of the BGP packet capture buffer. This buffer size
pertains to both IPv4 and IPv6 addresses.
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