Pvc Bundles - Cisco 10000 Series Configuration Manual

Quality of service configuration guide

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Configuring Quality of Service for PVC Bundles

Networks can span many geographical locations and can utilize the full spectrum of networking

technologies available for both network access and the network core. In some networks the core

connections are over existing low-speed Frame Relay or ATM networks. Because service providers have

invested substantially in these networks, providers need a way to differentiate themselves from other

providers and increase profitability while using these low-speed links. The Cisco 10000 series router

offers advanced IP QoS as a solution.

The Cisco 10000 series router provides IP QoS over multiple ATM and Frame Relay PVCs combined

into PVC bundles. By using PVC bundles and QoS-based PVC selection to carry packets, service

providers can increase bandwidth between two routers when the connectivity is limited to low-speed

switched circuits.

This chapter describes PVC bundles and QoS-based PVC selection over ATM and Frame Relay PVCs.

It includes the following topics:

PVC Bundles

A PVC bundle is a group of permanent virtual circuits (PVCs) combined into a logical group with a

single, virtual interface that connects to a peer system. PVC bundles enable service providers to offer

different levels of service through the use of IP precedence, differentiated services code point (DSCP),

and Multiprotocol Label Switching (MPLS) experimental (EXP) levels, and QoS features. Using the

PVC bundle management software, you can create a bundle of PVCs between a pair of connected routers

and assign different QoS characteristics to individual PVCs in the bundle. Each PVC in a bundle has its

own traffic class and traffic parameters, and is configured to carry packets whose priority matches the

configured range.

Using PVC bundles, you can do the following:

PVC Bundles, page 19-1

ATM PVC Selection, page 19-4

Frame Relay PVC Selection, page 19-31

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