tie-breaking

Configures the device to choose the path with the highest available bandwidth or the lowest available bandwidth.

Syntax

tie-breaking { [ least-fill | most-fill | random ] }
no tie-breaking { [ least-fill | most-fill | random ] }

Command Default

The default is the tie-breaking random mode.

Parameters

least-fill

Causes CSPF to choose the path with the highest available bandwidth (that is, the path with the least utilized links).

most-fill

Causes CSPF to choose the path with the lowest available bandwidth (that is, the path with the most utilized links).

random
Causes CSPF to choose the path randomly from the equal-cost paths.

Modes

MPLS LSP configuration mode (config-router-mpls-lsp-lsp_name )

MPLS router bypass LSP configuration mode (config-router-mpls-bypass-lsp-bypass_name )

MPLS router MPLS interface dynamic bypass configuration mode (config-router-mpls-if-ethernet-slot/port -dynamic-bypass)

Usage Guidelines

The no form of the command removes the tie-breaking configuration and reverts to the default mode.

The user can configure an interface level tie-breaking option for the CSPF calculation of dynamic bypass LSPs to be created for the protected MPLS interface. The set value is used for dynamic bypass LSP path computation tie-breaking procedure.

MPLS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.

Examples

In the following example, the configuration causes the CSPF to select the path with the highest available bandwidth when choosing among equal cost paths calculated for LSP tunnel1.

device# configure
device(config)# router mpls
device(config-router-mpls)# lsp tunnel1
device(config-router-mpls-lsp-tunnel1)# tie-breaking least-fill

The following example configures the tie-breaking path bandwidth to the least-fill option for dynamic bypass MPLS Ethernet interface 2/8 .

device# configure
device(config)# router mpls
device(config-router-mpls)# mpls-interface ethernet 2/8
device(config-router-mpls-if-ethernet-2/8)# dynamic-bypass
device(config-router-mpls-if-ethernet-2/8-dynamic-bypass)# tie-breaking least-fill