Accounting Updates; Service Category Transitions; Dynamic Bandwidth Selection And Oversubscription - Cisco 10000 Series Configuration Manual

Quality of service configuration guide

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Configuring Dynamic Subscriber Services

Accounting Updates

When dynamic bandwidth selection applies QoS values for a user, it sends an accounting record to the

RADIUS server. The accounting records contain accounting attributes such as the following:

Cisco-Avpair = "peak-cell-rate=155000" [flags = 0x00014000]

Cisco-Avpair = "sustainable-cell-rate=145000" [flags = 0x00014000]

bandwidth selection (DBS).

Table 17-1 Supported Service Category Transitions

From Service Category

UBR-unshaped

UBR-PCR (shaped)

In DBS, the router does not allow you to change a VC traffic class, regardless of the atm pxf queuing

mode of the router. For example, if you have a shaped UBR and DBS downloads peak cell rate (PCR)

and sustained cell rate (SCR) values from RADIUS, the router does not convert the VC to VBR-nrt.

Instead, the VC remains shaped UBR with the PCR configured. The router accepts or rejects the session

on the VC as described below:

In releases prior to Cisco IOS Release 12.3(7)XI2, if you simultaneously configure dynamic bandwidth

selection (DBS) and VC oversubscription, RADIUS-provided QoS parameters are not set for some ATM

In Cisco IOS Release 12.3(7)XI2 and later releases, the router supports VC oversubscription on VCs that

are modified using DBS. You can simultaneously configure DBS and VC oversubscription without any

adverse affect on the VC's rate modification.

lists the service category transitions supported on the Cisco 10000 series router for dynamic

If the downloaded PCR and SCR parameters are defined as mandatory attributes in RADIUS, the

router rejects the session.

If the downloaded PCR and SCR parameters are defined as non-mandatory attributes in RADIUS,

the router accepts the session on the VC without changing the VC's traffic class or parameters.

Applying Traffic Shaping Parameters Using RADIUS Profiles

To Service Category

UBR-unshaped

Cisco 10000 Series Router Quality of Service Configuration Guide

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