Restrictions And Limitations For Mlp Over Serial-Based Lfi; Line Card Support For Mlp Over Serial-Based Lfi; Single-Vc Mlp Over Atm-Based Lfi - Cisco 10000 Series Configuration Manual

Quality of service configuration guide

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Multilink PPP-Based Link Fragmentation and Interleaving

Restrictions and Limitations for MLP Over Serial-Based LFI

The following line cards support MLP over serial-based LFI for the Cisco 10000 series router:

Single-VC MLP over ATM-based LFI uses the fragmentation and interleaving capability of MLP to

integrate real-time and nonreal-time packets together on the same link. MLP defines the mechanisms to

fragment, reassemble, and sequence large datagrams across multiple logical data links. MLP uses the

fragmentation and packet sequencing specifications defined in RFC 1990 to implement link

fragmentation and interleaving at the bundle level, supporting only one LFI-enabled member link per

Cisco 10000 Series Router Quality of Service Configuration Guide

A multilink bundle can have up to 10 member links. The router supports subrate T1 interfaces as

member links. The link speeds must be the same for all of the links in the bundle.

The router supports a maximum of 1250 bundles per system and a maximum of 2500 member links

The valid multilink interface values are from 1 to 9999 (Release 12.2(28)SB and later), or from 1 to

9999 and 65,536 to 2,147,483,647 (Release 12.2(31)SB2 and later). For example:

Router(config)# interface multilink 8

Interleaving is supported on one member link. MLP over Serial-based LFI must be enabled on an

interface that has interleaving turned on.

All member links in a MLP bundle must have the same encapsulation type and bandwidth.

Performance is not guaranteed when member links have different bandwidths.

We strongly recommend that you use only strict priority queues when configuring MLP over

Serial-based LFI. For more information, see

24-port Channelized T1/E1

6-port Channelized T3

4-port Channelized OC-3/STM-1

1-port Channelized OC-12/STM-4

Fragmenting and Interleaving Real-Time and Nonreal-Time Packets

Chapter 8, "Prioritizing Services."

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