Cabletron Systems Netlink FRX8000, User Manual

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9-16 FRX8000 3. 0 User G uide, Rev 02
The following figure shows an example of wildcard addressing.
Figure 10-5 Wildcard Addressing Example
Subscriber records configured for this example are:
●
Subscriber ID
00100
, with Node 1, LP 2, port 1 specified as its
1st Routing Path
(described in the chapters that deal with specific protocols).
●
Subscriber ID
123*
, with Node 2, LP 0, port
0
specified as
1st Routing Path
.
If subscriber
00100
sends a Call Request with any of called addresses
12301
through
12304
,the FRX8000 searches for a match, finds
123*
, then routes the packet through
node 2, and out LP 0, port 0.
Search Order for Subscriber Addresses
A subscriber address that includes a wildcard potentially matches more addresses than
one with no wildcards. For example, the address
*
matches all other addresses.
Without some kind of check, an address with no wildcards, which is specifically
assigned, could be read as a match for an address with a wildcard, and sent to the
wrong place. To avoid this, a search order has been established for performing call
routing:
●
Addresses with no wildcards will be searched first.
●
Addresses with only
?
wildcards will be checked next.
●
Addresses with
*
will be checked last.
Within each wildcard group, addresses with the most non-wildcard digits will be
checked first. For example,
311012345678*
will be checked before
3110*
.
L0,P0
L0,P1
L0,P2
L0,P3
FRX 8000
Node 2
L2,P1
00100
12301
12302
12303
12304
FRX 8000
Node 1