3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual page 99

To reassign the extension numbers:
1 Record the extensions and either the MAC addresses or port numbers for
the four Line Card ports.
For the 3C10114 board, record the MAC addresses. Each port has a
unique MAC address. For the 3C10114C board, record the port numbers.
Each port has the same MAC address. Ports are numbered from 1
through 4 in parentheses, after the MAC address.
2 In the NBX NetSet – Main Menu window, click Reports.
3 Click the Device List tab.
4 Review the extensions in the scroll list to find the highest extension
number that has been assigned. Add one to that extension and record it.
For example, if the highest assigned extension number is 7268, you
record 7269.
5 Return to the Line Cards tab.
6 From the four Line Card ports you recorded, select the port with highest
MAC address or port number and click Modify.
7 In the Modify Line Card Port dialog box, change the extension number
(7258 in this example) to the extension number you recorded when you
were viewing the Device List tab (7269).
8 Click OK. The Line Card Ports tab reappears showing the new extension
number. Extension 7258 is now unused.
9 From the four Line Card Ports you recorded, select the port to which you
want to assign the unused extension. In the example, 7258 is the lowest
extension number of the four, so select the port with the lowest MAC
address or port number and click Modify.
10 Change the extension number and click OK.
Repeat steps 9 and 10. Each time that you assign an extension, the
previous extension is no longer used, and you can assign it to the
appropriate port. When you are finished:
The four original extensions (7258 through 7261) are assigned to the
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line card ports in the same order as the MAC addresses or port
numbers.
The unused extension (7269) is again unused.
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Using Auto Discover for Initial System Configuration 99