Spvc And Spvp Configuration Quickstart - Cisco MGX 8850 (PXM1E/PXM45) Configuration Manual

Quickstart Provisioning Procedures
It is beyond the scope of this guide to describe how to configure each model of the CPE to communicate
with the switch. To complete this configuration, you will need to learn the capabilities of the CPE and
the switch and define a set of communications parameters that are supported by both devices. For
example, the Cisco MGX switches support UNI 3.1 communications, but if the CPE does not, you must
select a signaling protocol (such as UNI 3.0) that is supported by both devices.
Once all the requirements have been met for SVC connections, CPE devices can establish SVC
connections to other CPE devices on the same switched network.

SPVC and SPVP Configuration Quickstart

A soft permanent virtual circuit (SPVC) is a permanent virtual circuit (PVC) that can be rerouted using
the Private Network-to-Network Interface (PNNI) Version 1.0 protocol. As with PVCs, SPVCs are
full-time connections. A PVC, however, uses a predefined circuit path and will fail if the path is
interrupted. Using the PNNI protocol, SPVCs can be rerouted to avoid failed communication links or to
use links that offer better bandwidth.
An SPVP is a permanent virtual path that can be rerouted using the PNNI Version 1.0 protocol. The
difference between an SPVC and an SPVP is that the SPVP supports multiple VCIs, whereas an SPVC
is by definition a single virtual circuit. As with SPVCs, when an SPVP fails, PNNI can determine if an
alternate route exists and reroute the connection.
The quickstart procedure in this section provides a summary of the tasks required to configure SPVCs
and SPVPs on Cisco MGX 8850 (PXM1E) and Cisco MGX 8830 switches. This procedure is provided
as an overview and as a quick reference for those who have previously configured these types of
connections.
Command
Step 1 username
<password>
Step 2 See
Quickstart," which appears earlier
in this chapter.
Step 3
dsppnni-reachable-addr
network
Step 4 See
Configuration
appears earlier in this chapter.
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
3-8
"ATM Trunk Configuration
"PNNI UNI Port
Quickstart," which
Chapter 3
Purpose
Start a configuration session.
To perform all the steps in this quickstart procedure, you
Note
must log in as a user with GROUP1 privileges or higher.
Configure the trunks that link the switches to which the ATM end
stations connect.
Verify PNNI connectivity between the two nodes that will host
the SPVC or SPVP end points.
See "Verifying End-to-End PNNI
appears later in this chapter.
Configure lines for the ATM end stations at each end of the SPVC
or SPVP, and assign either static or dynamic addressing to each
line.
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Provisioning PXM1E Communication Links
Communications," which