Incorrect Isl Channel Numbering Plans - Nortel 1000 Fundamentals

Incorrect ISL channel numbering plans

This section describes numbering plan errors.
Gaps in ISL channel numbering sequence
Table 42 "Channel numbering error, gap on one card" (page 189)
gaps in the ISL numbering plan sequence. A gap between channel numbers
causes the IP trunk card to be unable to associate the ISL channel number
with the B channel number. Therefore, only units 0 to 4 (loop shelf card 0
to loop shelf card 4) can be used.
Table 42
Channel numbering error, gap on one card
Decreasing channel numbering sequence
Table 43 "Channel numbering error, decreasing channel number sequence"
(page 189)
Using decreasing ISL channel identifiers causes the IP trunk card to be
unable to associate the ISL channel number with the B channel number. In
this example, only unit 0 (loop shelf card 0) can be used.
Table 43
Channel numbering error, decreasing channel number sequence
Copyright © 2007, Nortel Networks
.
Unit number (from TN)
0
1
2
3
4
5
6
shows an example of a decreasing ISL channel numbering plan.
Unit number (from TN)
0
1
2
3
4
5
6
7
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
Channel Identifier planning 189
ISL Channel number
1
2
3
4
5
11
12
ISL Channel number
24
23
22
21
20
19
18
17
shows