Appendix C Creating Pvcs; Creating P2P; Creating A Traffic Descriptor - Avaya M770 User Manual

Appendix C
Creating PVCs
This appendix describes the procedure for creating PVCs on Avaya M770 ATM
Modules.

Creating P2P

PVCs are virtual circuits that are set up through manual configuration rather than
through UNI signaling between the ATM endpoints as is done for the switched
virtual circuits (SVCs).
There are three steps in creating a P2P PVC on the M770 ATM switch:
1 Create the Traffic Descriptor (TD) that will be used for the PVC
2 Limit the Signaling SVC range on the vport
3 Create the P2P PVC.
The next three subsections explain how to setup a PVC on the M770 ATM switch. In
this example, a P2P PVC will be setup on the M770 between ports 1.1 and 1.2 using
VPI 0/ VCI 115.
The M770 ATM switch uses the following system to describe a VC. The number,
"1.2.0.115:" indicates that there is a VC on slot 1, port 2 using VPI 0 and VCI 115.

Creating a Traffic Descriptor

A Traffic Descriptor must be defined with the service class that will be used to
transport the traffic and the bandwidth that is required. The example below shows
a cell rate of 4152 cells per second, appropriate for a DS1 (24 DS0s times 173 cps)
Command:M770s1:/>td setup CBR <td_id> pcr0+1=<pcr0+1> [pcr0=<pcr0>]
Example:M770s1:/> td setup CBR 5 pcr0+1=4152
To determine which td_id is available, type td show to display all defined Traffic
Descriptors.
Avaya M770 ATM Switch User's Guide 289