Cabletron Systems Netlink FRX4000, Руководство пользователя

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