Specifications

metric-style wide
MP-140
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
metric-style wide
To configure a router running Intermediate System-to-Intermediate System (IS-IS) so that it generates
and accepts only new-style type, length, and value objects (TLVs), use the metric-style wide command
in router configuration mode. To disable this function, use the no form of this command.
metric-style wide [tr
ansition] [level-1 | level-2 | level-1-2]
no metric-style wide [tr
ansition] [level-1 | level-2 | level-1-2]
Syntax Description
Defaults The Multiprotocol Label Switching (MPLS) traffic engineering image generates only old-style TLVs. To
do M
PLS traffic engineering, a router must generate new-style TLVs that have wider metric fields.
Command Modes Router configuration
Command History
Usage Guidelines If you enter the m
etric-style wide command, a router generates and accepts only new-style TLVs.
Therefore, the router uses less memory and other resources than it would if it generated both old-style
and new-style TLVs.
This style is appropriate for enabling MPLS traffic engineering across an entire network.
Note This discussion of metric styles and transition strategies is oriented toward traffic engineering
deployment. Other commands and models could be appropriate if the new-style TLVs are desired for
other reasons. For example, a network might require wider metrics, but might not use traffic engineering.
Examples The following example shows how to configure a router to generate and accept only new-style TLVs on
level 1:
Router(config-router)# metric-style wide level-1
transition (Optional) Instructs the router to accept both old- and new-style TLVs.
level-1 (Optional) Enables this command on routing level 1.
level-2 (Optional) Enables this command on routing level 2.
level-1-2 (Optional) Enables this command on routing levels 1 and 2.
Release Modification
12.0(5)S This command was introduced.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
i
n a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.