Depending on how new your router is and what code (12.0) or above and if it is running cef , you can on the MSF itself do a "show adjacency vlan XXX detail" and this will give you the ip address , mac address and even the dns name of the pc it is connected to . This is all stored in the cef tables . I have found this to be "Very" handy for one stop shopping for this info . If you are looking for this on on router you can just do a "show adjacency "interface" detail . You would have to cross reference this info with the mac tables of the switch below to see what pc is connected to what port .
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...