Service Manual
Usage Information
In Non-Deterministic mode, paths are compared in the order in which they arrive. This method can lead to the
system choosing different best paths from a set of paths, depending on the order in which they are received from
the neighbors because MED may or may not get compared between adjacent paths. In Deterministic mode (no
bgp non-deterministic-med), the system compares MED between adjacent paths within an AS group
because 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 the existing
paths remains Deterministic until you enter the clear ip bgp command to clear existing paths.
bgp recursive-bgp-next-hop
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
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
This command is a knob to disable BGP next-hop resolution using 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 clear ip bgp — clears the ip bgp.
bgp regex-eval-optz-disable
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
Command Modes ROUTER BGP (conf-router_bgp)
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.
Border Gateway Protocol IPv4 (BGPv4) 289