Beta Draft Confidential
19-21/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
CUGs
Configuration Overview
A CUG is comprised of a set of rules called members. These rules represent SVC port
addresses and prefixes for which you have enabled the CUG termination option (refer
to Table 17-12 on page 17-53). You configure CUG member rules in either X.121 or
E.164 address format. When you configure a member rule, you can replace some
digits with the * or ? UNIX wildcard characters. If a member rule does not contain a
wildcard character, it maps to a specific network user. If the member rule includes a
wildcard, then this member can potentially map to multiple network users.
About CUG Member Rules
CUG member rules correspond to SVC addresses. You can enter a rule as a
UNIX-style expression. You can use the * as a wildcard to replace zero, one, or more
digits; or the ? as a wildcard to replace a single digit. You can only use the * once in a
string. Keep in mind that an X.121 digit is 4 bits and an E1.64 digit is 8 bits.
The examples in Table 19-1 show how you can use wildcards to represent multiple
E.164 addresses.
When you define a CUG member, these addresses define the member value for the
CUG member rule. Each CUG member rule is defined by an ASCII name, an address
type (either E.164 or X.121), and the CUG member value (rule).
Note – Throughout this document, most address descriptions use the term SVC
address. Unless otherwise noted, the term SVC address is used interchangeably with
the term SVC prefix.
Table 19-1. Examples of Using Wildcards to Represent E.164 Addresses
Example Description
1508952* This CUG includes all numbers using area code 508 and exchange
number 952.
1508952148? This CUG includes all numbers using area code 508, exchange number
952, and an extension starting with 148 (for example, 1480 – 1489).
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