Configuring Nondefault Well-Known Pvcs; Overview Of Nondefault Pvc Configuration - Cisco Catalyst 8540 MSR Configuration Manual

Configuring Nondefault Well-Known PVCs

Configuring Nondefault Well-Known PVCs
Normally the default well-known VCs are automatically created with default virtual channel identifiers
(VCIs). However, for the unusual instances where the ATM switch router interfaces with nonstandard
equipment, you can configure nondefault well-known VCI values on a per-interface basis.
For overview information about the well-known PVCs, refer to the Guide to ATM Technology.
Table 7-2
Table 7-2
Channel Type
Signalling
ILMI
PNNI
Tag switching 0
Do not change the well-known channels to use a VC where the remote end is sending AAL5 messages
Caution
not intended for the well-known VC. For example, do not swap VC values between two types of
well-known VCs.
When you configure well-known VCs on physical interfaces using the CBR service category, the VC
scheduling on the external interface is the same as the CBR VC configuration. This means that the VCs
are allocated the bandwidth specified and are limited to that same bandwidth (shaped).
The connection from an external interface to the route processor is never shaped.
Note

Overview of Nondefault PVC Configuration

Following is an overview of the steps needed to configure nondefault well-known VCs:
Enable manual well-known VC configuration.
Step 1
Delete any existing automatically created well-known VCs.
Step 2
Step 3 Configure the individual encapsulation type as follows:
•
•
•
•
Copy the running-configuration file to the startup-configuration file.
Step 4
ATM Switch Router Software Configuration Guide
7-74
lists the default well-known VCs and their default configuration.
Well-Known Virtual Channels
Virtual Path Identifier
0
0
0
Signalling (QSAAL)
ILMI
PNNI
Tag switching
Chapter 7
Virtual Channel Identifier
5
16
18
32
Configuring Virtual Connections
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