(RADIATOR) Cisco, non-unique NAS-Ports, clobbering Online DB

Claudio Lapidus c_lapidus at hotmail.com
Mon Jul 15 17:14:23 CDT 2002

Hi Dave,

>The ports being reported are all in the 7000 and 8000 ranges, for
>whatever reason. If anyone has a info about exactly how they encode the
>slot and shelf into this value, I'd be interested in checking it out.

I think I found it. Try this:

AS5850(config)# radius-server attribute nas-port format c

Sets the format of the network gateway (NAS) port attribute to c, which is 
shelf (2 bits), slot (4 bits), port (5 bits), channel (5 bits).
--------<end snip>--------

(weird bit alignment, don't you think? :)

This comes from an AS5850 config guide. Check 
However, I think it applies to other platforms too. I tried some bit 
patterns taken from our 5300's and it seems to match, at least partially, 
but honestly, I didn't dig out too much at this, neither. If you check it 
out please let me know if it works. It could be interesting for some 

take care,

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