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Command
History
Version Description
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage
Information
The bgp log-neighbor-changes command appears in the show config
command output.
Related
Commands
show config – views the current configuration.
bgp non-deterministic-med
Compare MEDs of paths from different autonomous systems.
Z9500
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
Command
History
Version Description
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
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 existing paths remains deterministic until you enter the clear
ip bgp
command to clear existing paths.
516
Border Gateway Protocol