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BGP graceful restart is active only when the neighbor becomes established. Otherwise it is disabled.
Graceful-restart applies to all neighbors with established adjacency.
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.
bgp outbound-optimization
Enables outbound optimization for IBGP peer-group members.
Syntax
bgp outbound-optimization
To disable outbound optimization, enter the no bgp outbound-optimization command.
Defaults Enabled.
Command Modes ROUTER BGP
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
EMC Networking OS Command Line Reference Guide.
The following is a list of the Dell EMC Networking OS version history for this command.
Version Description
9.4.(0.0) Introduced on the S4810.
9.2(1.0) Introduced on the Z9500.
Usage
Information
The updates are sent to all the neighbors in the peer-group and all the neighbors have the same attributes
including next-hop.
Enabling or disabling outbound optimization dynamically resets all neighbor sessions.
When you enable outbound optimization, all peers receive the same update packets. Also, the next-hop
address, which is chosen as one of the addresses of the neighbor's reachable interface, is the same for all
peers.
Border Gateway Protocol IPv4 (BGPv4) 273