jdflory
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How can i locate hubs and mini switches plugged into a cisco switch
I have a midsized network with about 300 devices running on cisco switches. I want to start using portfast on all access ports but there are numerous mini switches and hubs spread throughout the netwpork. How can find these devices without having to check every cubicle and office?
Any help would be very appreciated.
Any help would be very appreciated.
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CCI_IT
or.................you can turn on port security with a maximum mac address of 1 and a shutdown violation. Whatever turns off..........has a switch or a hub connected. be prepared for loss of connectivity though.
ASKER
Thanks for everyones input.
This was all great input. One peice of information i did not mention was that the majority of computers uplinked through a nortel phone meaning that the line is always active and that most have multiple mac addresses. I also found that most of our computers keep an active link even when shutdown due to wak on lan functionality.
Bottom line is i am using a combination of almost everyones input except CCI_it because this was already stated in an earlier comment. I ended up crawling under desks for the most part but for the mini switches that were not on documented ports i am going to look at address tables and use the link provided for mac address by vendor then maybe dot the port security method but with logging only.
I wiil also take a look at switchport mapper as long as the trial will run in full mode for 30 days.
The next thing i will do is use BPDU gaurd to prevent this from happening again.
I will devide points up between the first five in the thread.
thanks
This was all great input. One peice of information i did not mention was that the majority of computers uplinked through a nortel phone meaning that the line is always active and that most have multiple mac addresses. I also found that most of our computers keep an active link even when shutdown due to wak on lan functionality.
Bottom line is i am using a combination of almost everyones input except CCI_it because this was already stated in an earlier comment. I ended up crawling under desks for the most part but for the mini switches that were not on documented ports i am going to look at address tables and use the link provided for mac address by vendor then maybe dot the port security method but with logging only.
I wiil also take a look at switchport mapper as long as the trial will run in full mode for 30 days.
The next thing i will do is use BPDU gaurd to prevent this from happening again.
I will devide points up between the first five in the thread.
thanks