Wildcard Addressing Example - Cabletron Systems Netlink FRX4000 User Manual

Wildcards in Subscriber Addresses
Configuring X.25
Each subscriber is assigned to an FRX4000/6000 port, and more than one subscriber
device can use a port. To eliminate the need to specify the complete ID of every sub-
scriber on the port, the question mark and the asterisk can be used as "wildcard" char-
acters.
A question mark in an address matches any single digit. For example,
is any 14-digit address that begins with
3110??????????
An asterisk matches any combination of digits, including none at all. For example,
is any address that starts with
3110*00
—overlapping is not allowed). Note that
31100
matches any address.
Wildcards can be combined. The address
and containing at least two more digits.
The following figure shows an example of wildcard addressing.
L1,P0
Figure 8-7 Wildcard Addressing Example
This configuration requires Port and Subscriber ID records in node 1 for:
Subscriber
00100
Subscriber on RLP 1, Port 3
123*
In node 2, RLP, Port, and Subscriber records must be configured for:
Subscriber
12301
Subscriber
12302
Subscriber
12303
Subscriber
12304
If subscriber sends a Call Request with any of called addresses
00100
, node 1 searches for a match, finds
12304
2, RLP1, port 0, where node 2 reads the full called address in the packet and routes it
out the appropriate port.
and ends with
3110
3110??*
P1
Node 1
P3 - Subscriber ID
123*
L0,P0
L0,P1
L0,P2
Node 2
L0,P3
on RLP 0, Port 1
on RLP 0, port 0
on RLP 0, port 1
on RLP 0, port 2
on RLP 0, port 3
on Port 3, then routes the packet to node
123*
.
3110
, including
00
by itself is very important, because it
*
is any address beginning with
00100
12301
12302
12303
12304
(but not
311000
3110
through
12301
8-23