Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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bgp non-deterministic-med

Compare MEDs of paths from different autonomous systems.

Syntax

bgp non-deterministic-med

To return to the default, use the no bgp non-deterministic-med command.

Defaults

Disabled (that is, paths/routes for the same destination but from different ASs do not have their MEDs compared).

Command Modes

ROUTER BGP

Supported Modes

Full–Switch

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

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.