Ima Group Configuration Quickstart; Ausm-To-Ausm Spvc Configuration Quickstart - Cisco MGX 8850 PXM1E Software Configuration Manual And Command Reference

Quickstart Provisioning Procedures

IMA Group Configuration Quickstart

An Inverse Multiplexing for ATM (IMA) group is a logical entity (which is similar to an ATM port) that
adds ATM layer communications to a group of physical lines that connect an MGX 8850 switch to a CPE
ATM device (which, in most cases, is a router). The physical lines in an IMA group collectively support
a throughput roughly equal to the sum of the throughputs for the individual lines. For example, a single
T1 line can support about 3,591 cells per second (cps). If you create an IMA group of 4 T1 lines, the
group can support up to 14,364 cps. You can define an IMA group to include up to 8 lines for a maximum
T1 throughput of 28,728 cps.
To create an IMA group, perform the following steps:
Command
Step 1
username
<password>
Step 2 addln <line>
Related commands:
dsplns
dspln <line>
delln <line>
Step 3 cnfln <options>
Related commands:
dsplns
dspln <line>
delln <line>
Step 4
addimagrp <options>
Related commands:
dsplns
dspimagrps
delimagrp
Step 5 cnfimagrp <options>
Related commands:
dspimagrps
dspimagrp

AUSM-to-AUSM SPVC Configuration Quickstart

A soft permanent virtual circuit (SPVC), a variant of a permanent virtual circuit (PVC), can be rerouted
using the Private Network-to-Network Interface (PNNI) Version 1.0 protocol.
Both PVCs and SPVCs are full-time connections. However, a PVC uses a predefined circuit path that
fails altogether if that path is interrupted for any reason. Conversely, if a link along an SPVC path fails
or that link cannot provide the required bandwidth to support the connection, the PNNI protocol reroutes
that link to maintain the connection and to supply the necessary bandwidth.
Cisco AUSM Software Configuration Guide and Command Reference for MGX 8850 (PXM1E) and MGX 8830
2-4
Purpose
Start a configuration session.
To perform the steps in this quickstart procedure, you
Note
must log in as a user with GROUP1 privileges or higher.
Bring up all lines that will be added to the IMA group.
See the "Bringing Up Lines"
chapter.
This optional step allows you to change a line configuration when
the default or existing configuration needs changing.
See the "Configuring Lines"
chapter.
Define the lines that will be used by a single IMA group.
See the "Adding IMA Groups"
chapter.
This optional step allows you to change an IMA group
configuration when the default or existing configuration needs
changing.
See the "Configuring IMA Groups"
this chapter.
Release 3, Part Number 78-14254-01 Rev. A0, October 2002
Chapter 2 Provisioning Communications Links
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