Cisco Systems Network Router manual Worksheets, Selecting a Default CUG Address

Chapter 3 Address and Closed User Group Planning

Worksheets

Selecting a Default CUG Address

A default CUG address is a default address that is assigned to a switch to be used for CUG validation when the connected CPE does not signal a calling party ATM address. The default CUG address does not have to match any addresses or prefixes assigned on the switch. It is not used for PNNI routing. It is simply a default address to which a CUG can be assigned.

When a default CUG address is configured, all calls originating and terminating at the switch are treated as CUG calls, regardless of the ATM address. If the CPE does not signal an ATM address, CUG validation uses the default CUG address and evaluates the call based on the CUG membership assigned to the default CUG address. If multiple CUGs are assigned to the default CUG address, it is a good plan to specify one CUG as a preferential CUG.

When planning a default CUG address using the CUG Configuration Worksheet, Table 3-6, remember that there can only be one default CUG address per switch. If you want to assign more than one CUG to the default CUG address, copy Table 3-6for each CUG assignment and remember that the default CUG address or prefix must be the same in all copies planned for the same switch.

Worksheets

This section provides the configuration worksheets that are described earlier in this chapter.

Table 3-4is a worksheet that you can use to write down ATM address planning information that applies to the switches in your WAN.

Table 3-4 Nodal Address Worksheet

Node Name

Address Format

Lowest

PNNI

Level

Peer Group ID

ATM Address

Additional PNNI Levels

SPVC Prefix

Table 3-5is a worksheet that you can use to write down ATM address planning information that applies to the ports on a single switch. To complete an address plan, complete one Nodal Address Worksheet for the WAN and an individual Port Address Worksheet for each switch in the WAN.

	Cisco PNNI Network Planning Guide for MGX and SES Products, Release 5
3-18	Part Number OL-3847-01 Rev. D0, April, 2004