Precedence Level Examples For Assigning Vc Classes; Example 1: Explicitly Changing The Service Category - Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual

JunosE 11.2.x Link Layer Configuration Guide

Precedence Level Examples for Assigning VC Classes

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applies the set of attributes in the specified VC class to all bulk-configured VC ranges
that are dynamically created from this profile.
For more information, see "Configuring ATM 1483 Dynamic Subinterfaces" on page 624 in
"Configuring Dynamic Interfaces Using Bulk Configuration" on page 619.
The examples in this section illustrate how the precedence level rules described in
"Precedence Levels" on page 53 affect the assignment of VC classes and PVC attribute
values.
For all of these examples, assume that you have issued the following commands to
configure a VC class named my-premium-class:
host1(config)#vc-class atm my-premium-class
host1(config-vc-class)#encapsulation aal5autoconfig
host1(config-vc-class)#cbr 200
host1(config-vc-class)#oam-pvc manage 60
host1(config-vc-class)#oam ais-rdi 5
host1(config-vc-class)#exit
Example 1 and Example 2 illustrate the effect of precedence levels when you assign the
VC class my-premium-class to an individual PVC with VCD 200, VPI 0, and VCI 200.
Example 3 illustrates how using the atm pvc command affects VC class assignment.
Finally, Example 4 illustrates how modifications to a VC class affect PVC attributes
applied through RADIUS.

Example 1: Explicitly Changing the Service Category

Explicitly specified attribute values take precedence over attribute values specified in a
VC class. As a result, the following commands cause the router to use the most recent
explicitly specified value, UBR with a PCR of 200 Kbps, as the service category for this
PVC instead of the service category specified in my-premium-class, CBR with a PCR of
200 Kbps. The router takes the values for the other attributes from the VC class
my-premium-class.
host1(config)#interface atm 2/0.200
host1(config-subif)#pvc 200 0/200
host1(config-subif-vc)#ubr 200
host1(config-subif-vc)#class-vc my-premium-class
host1(config-subif-vc)#exit
The following commands change the service category for the PVC to VBR-RT because
this is the most recent explicitly specified value for this attribute. The router takes the
values for the other attributes from the VC class my-premium-class, which is still assigned
to the PVC.
host1(config)#interface atm 2/0.200
host1(config-subif)#pvc 200 0/200
host1(config-subif-vc)#vbr-rt 200 150 200
host1(config-subif-vc)#exit
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