I had seem that document. I was hoping someone would have a fix to this "feature" ;)
On Thu, Feb 14, 2008 at 4:09 AM, <[EMAIL PROTECTED]> wrote: > > We just turned on DHCP Option 82 on our Cisco switches and we are seeing > > some oddities in the logs. > > The switch seems to relay the incorrect port number to the logs. > > For instance, if a device is connected to 1/0/4, the logs will show > 1/0/6. > > The difference of 2 is consistent until we get to higher port numbers, > > around port 24. At that point the difference increases to 4. So if a > > device is connected to 1/0/40, the log says it's connected to 1/0/44. > > > > Has anyone else encountered this error? Is there anything that has to be > > configured on the switch to fix this? > > It seems to be an error in the way the switch relays the information. > > This is documented (well, at least part of it), and therefore it's a > feature not a bug :-) > > See for instance > > > http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00808e0574.html#wp1069615 > > "In the port field of the circuit-ID suboption, the port numbers start > at 3. For example, on a switch with 24 10/100 ports and small > form-factor pluggable (SFP) module slots, port 3 is the Fast Ethernet > x/0/1 port, port 4 is the Fast Ethernet x/0/2 port, and so forth, > where x is the stack member number. Port 27 is the SFP module slot > x/0/1, and so forth." > > Steinar Haug, Nethelp consulting, [EMAIL PROTECTED] > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
