Configuring Cos Rewrite Rules (Nsm Procedure) - Juniper NETWORK AND SECURITY MANAGER - NSM CONFIGURATION GUIDE FOR EX SERIES DEVICES REV 3 Configuration Manual

Configuring CoS Rewrite Rules (NSM Procedure)

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Configuring CoS and Applying Scheduler Maps (NSM Procedure) on page 32
You configure rewrite rules to alter CoS values in outgoing packets on the outbound
interfaces of a device to match the policies of a targeted peer. Policy matching allows
the downstream router in a neighboring network to classify each packet into the
appropriate service group.
In addition, you often need to rewrite a given marker such as IP precedence, DSCP, or
IEEE 802.1p at the switch's inbound interfaces to accommodate behavior aggregate (BA)
classification by core devices.
You do not need to explicitly apply rewrite rules to interfaces. By default, rewrite rules
are applied to routed packets.
To configure CoS rewrite rules:
In the navigation tree, select Device Manager > Devices
1.
Click the Device Tree tab, and then double-click the device for which you want to
2.
configure CoS rewrite rules.
Click the Configuration tab. In the configuration tree, expand Class of Service
3.
Select Rewrite Rules.
4.
Add or modify settings as specified in Table 19 on page 28.
5.
Click one:
6.
OK—Saves the changes.
Cancel—Cancels the modifications.
NOTE: After you make changes to a device configuration, you must push that
updated device configuration to the physical security device for those changes
to take effect. You can update multiple devices at one time. See the Network
and Security Manager Administration Guide for more information.
Table 19: Configuring and Applying Rewrite Rules
Task Action
Configure rewrite 1.
rules for DiffServ CoS.
2. Click Add new entry next to Dscp.
3. In the Name box, type the name of the rewrite rules—for example,
Click Configure next to Rewrite Rules.
rewrite-dscps.
Copyright © 2010, Juniper Networks, Inc.