Example 3: Effect Of Using The Atm Pvc Command; Example 4: Overriding Radius Values; Configuring Dynamic Atm 1483 Subinterfaces - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13 Configuration Manual

JunosE 11.3.x Link Layer Configuration Guide

Configuring Dynamic ATM 1483 Subinterfaces

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Example 3: Effect of Using the atm pvc Command

The following commands, which attempt to assign the my-premium-class VC class to
a PVC originally created with the atm pvc command, have no effect. The router interprets
all attribute values specified with the atm pvc command as explicitly specified values,
and therefore takes the values for these attributes from the atm pvc command instead
of from the VC class. As a result, the router continues to use aal5mux ip as the
encapsulation method for this PVC instead of the encapsulation method specified in the
VC class my-premium-class.
host1(config)#interface atm 2/0.300
host1(config-subif)#atm pvc 300 0 300 aal5mux ip
host1(config-subif)#pvc 300 0/300
host1(config-subif-vc)#class-vc my-premium-class
host1(config-subif-vc)#exit

Example 4: Overriding RADIUS Values

If RADIUS is configured to provide traffic parameters for PVCs, a more recent, explicitly
specified change in the VC class associated with that PVC overrides the PVC values
applied through RADIUS.
In the following example, assume that RADIUS has been configured to apply a service
category of CBR with a PCR of 400 Kbps to the PVC. Initially, the PVC uses the service
category configured in my-premium-class, CBR with a PCR of 200 Kbps. However, when
the subscriber logs in through RADIUS, the router applies the RADIUS-configured service
category, CBR with a PCR of 400 Kbps.
While the subscriber is still logged in, my-premium-class is modified to change the service
category to CBR with a PCR of 600 Kbps. Because this VC class modification results in
the most recent, explicitly specified value for the service category, the router now uses
CBR with a PCR of 600 Kbps as the service category for the PVC instead of the service
category configured through RADIUS.
host1(config)#interface atm 2/0.200
host1(config-subif)#pvc 200 0/200
host1(config-subif-vc)#class-vc my-premium-class
host1(config-subif-vc)#exit
! Subscriber logs in through RADIUS, which applies service category of CBR
! with a PCR of 400 Kbps to PVC.
host1(config)#vc-class atm my-premium-class
host1(config-vc-class)#cbr 600
host1(config-vc-class)#exit
! Router now applies service category of CBR with a PCR of 600 Kbps to PVC.
As an alternative to the static ATM interface configurations described in this chapter,
you can also configure dynamic ATM 1483 subinterfaces over static ATM AAL5 interfaces
over ATM. Dynamic ATM 1483 subinterfaces can perform autodetection and dynamic
creation of the following upper-layer encapsulation types:
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