Appendix D Creating PVPs
294 Avaya M770 ATM Switch User’s Guide
The next three subsections explain how to setup a PVP on the M770 ATM switch.
Define a VPI range for VP switching
By default, all VPIs on a module are used for VC switching and VP switching is
disabled. The following command defines the range of VPIs that will be used for
Virtual Path (VP) switching for all ports on the module. The command must be
executed on all modules that will perform VP switching. For our examples, we need
to configure the VPI range 5 - 7 for VP switching .
Note: You must reset each module in order for the change to take place.
After resetting the module, you can verify that the VPIs have been reserved for VP
switching by typing in the command, vport show vpivciranges.
Define the VPI range to be used for Signaled VPs
In step 1, all of the VPIs reserved for VPs are automatically reserved for Signaled
VPs. Before a VPI may be used for a PVP, the signaling VP range on that vport must
be limited to prevent this VPI from being used by a Signaled VP.
There are some rules to remember in defining the range for Signaled VPs:
1 At least one of the VPIs defined in Step 1 MUST be reserved for Signaling VPs.
2 In defining the range for Signaled VPs, the lower bound MUST be the minimum
VPI defined in the Step 1.
In this exa mple, we ar e using VPI s 6 and 7, so we will lim it the sign aling VPIs t o just
VPI 5. This meets the criteria defined above.
Command: M15-155s1:/>hardware vpcvpirange <minVpcVpi>
Example 1: Module 1 M15-155s1:/>hardware vpcvpirange 5
Example 2 Module 1 M15-155s1:/>hardware vpcvpirange 5
Module 2 M15-155s2:/>hardware vpcvpirange 5
Parameters <minVpcVpi> Minimum number for Vpc Vpi for all ports on the module.
Maximum Vpc Vpi is set to maximum Vpi according to
vpivcibits set in the command "hardware vpivcibits"
Command: M15-155s1:/>vp set sigvpcvpirange <root vport id> [<range>]
Example 1: Module 1 M15-155s1:/>vport disable 1.1.0
M15-155s1:/>vport disable 1.2.0
M15-155s1:/>vport set sigvpcvpirange 1.1.0 [5..5]
M15-155s1:/>vport set sigvpcvpirange 1.2.0 [5..5]
M15-155s1:/>vport enable 1.1.0
M15-155s1:/>vport enable 1.2.0