Chapter 8 Permanent Virtual Connections (PVCs and PVPs)
Avaya M770 ATM Switch User’s Guide 103
To create a PVC connection, use the pvc setup pp command:
Creating a Point-to-Multipoint (PMP) PVC connection
Note: Before you set up a PMP PVC you have to identify the Trunk ID range that
can be used by the module that holds the root of the call. Trunk IDs are used for
associating different branches of the same PMP PVC call to its root. There may be
up to 895 Trunk IDs on each module that holds roots of PMP PVC calls. By default,
no Trunk IDs are defined. Refer to Chapter 7, “Managing Module Hardware” for
instructions on how to change that definition.
For PMP PVC calls, the optional traffic descriptor parameter indicates the traffic on
the forwarding direction, i.e. from the root to the branches. The backward (reverse)
direction is always zero.
To set up a PMP PVC between ports on different modules (on the same switch) you
must type the command on the CLI of each module. The order of the VCLs should
NOT switch places. The root VCL is the first, and the branch VCLs come second.
The command described below will setup a VCL on each <slot.port.vpi.vci> and a
PMP PVC connection joins the root to its branches. The PMP PVC connection will be
automatically assigned an id.
Command: M15-155s8:/>pvc setup pp <vcl1index> <vcl2index> [<td1> [<td2>]]
Example1: Setting up a PP PVC between 2 ports on the same module:
M15-155s8:/>pvc setup pp 8.1.0.1001 8.2.0.1002 6 2
Example2: Setting up a PP PVC between 2 ports on different modules but on the
same switch:
M15-155s8:/>On module 8: M15-155s8:/>pvc setup pp 8.1.0.1001
9.1.0.1002 6 2
M15-155s8:/>On module 9: M15-155s9:/>pvc setup pp 9.1.0.1002
8.1.0.1001 2 6
Parameters: <vcl1index> The first VCL for the PVC connection in the format
<slot.portnumber.vpi.vci>.
<vcl2index> The second VCL for the PVC connection in the format
<slot.portnumber.vpi.vci>.
td1 This refers to the transmit traffic descriptor of the first VCL and the
receive traffic descriptor of the second VCL on the PVC
connection.
td2 This refers to the receive traffic descriptor of the first VCL and the
transmit descriptor of the second VCL on the PVC connection.
Note: if td2 is omitted then it defaults to the same as td1.