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jwilliams31
Beginner

Find unmanaged switches connected to managed switches

I'm trying to create a network "map" for a network that has both managed and unmanaged switches.  Is there a way, while connected to one of the managed switches that I can find what port an unmanaged, possibly non-Cisco switch may be connected to?

1 ACCEPTED SOLUTION

Accepted Solutions
Seb Rupik
VIP Advisor

Hi there,

non-cisco devices *may* have LLDP enabled, which if configured on the connected cisco switch, will reveal its identity. If the mystery switch is not running a discovery protocol the only other way you might be able to know it is hanging off a switchport is to check the mac-address table on your cisco switch and look for switchports with a large number of MAC addresses.

 

cheers,

Seb.

View solution in original post

3 REPLIES 3
Seb Rupik
VIP Advisor

Hi there,

non-cisco devices *may* have LLDP enabled, which if configured on the connected cisco switch, will reveal its identity. If the mystery switch is not running a discovery protocol the only other way you might be able to know it is hanging off a switchport is to check the mac-address table on your cisco switch and look for switchports with a large number of MAC addresses.

 

cheers,

Seb.