1-133
Cisco ASR 901 Aggregation Services Router Command Reference Guide
OL-26031-07
Chapter 1 CLI Command Reference
set ip precedence tunnel
set ip precedence tunnel
To set the precedence value in the header of a Layer 2 Tunnel Protocol Version 3 (L2TPv3) or Generic
Routing Encapsulation (GRE) tunneled packet for tunnel marking, use the set ip precedence tunnel
command in policy-map class configuration mode. To disable this functionality, use the no form of this
command.
set ip precedence tunnel precedence-value
no set ip precedence tunnel precedence-value
Syntax Description
Command Default The precedence value is not set.
Command Modes Policy-map class configuration (config-pmap-c)
Command History
Usage Guidelines It is possible to configure L2TPv3 (or GRE) tunnel marking and the ip tos command at the same time.
However, Modular Quality of Service (QoS) Command-Line Interface (CLI) (MQC) (L2TPv3 or GRE)
tunnel marking has higher priority over ip tos commands, meaning that tunnel marking always rewrites
the IP header of the tunnel packet and overwrites the values set by ip tos commands. The order of
enforcement is as follows when these commands are used simultaneously:
1. set ip dscp tunnel or set ip precedence tunnel (L2TPv3 or GRE tunnel marking)
2. ip tos reflect
3. ip tos tos-value
This is the designed behavior. We recommend that you configure only L2TPv3 (or GRE) tunnel marking
and reconfigure any peers configured with the ip tos command to use L2TPv3 (or GRE) tunnel marking.
Note For Cisco IOS Release 12.4(15)T2, marking GRE-tunneled packets is supported only on platforms
equipped with a Cisco RPM-XF.
Examples The following example shows the set ip precedence tunnel command used in a tunnel marking
configuration. In this example, a class map called “MATCH_FRDE” has been configured to match traffic
on the basis of the Frame Relay discard eligible (DE) bit setting. Also, a policy map called “policy1” has
been created within which the set ip precedence tunnel command has been configured.
Router> enable
Router# configure terminal
precedence-value Number from 0 to 7 that identifies the precedence value of the tunnel header.
Release Modification
15.1(2)SNG Support for this command was introduced on the Cisco ASR 901 router.
To Next Page
Loading...
Need help?
General
