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port number tracing

Mary
Level 1
Level 1

i want to know the switch name and port number of my host X, with mac add 0011.23av.cd00. there are over 20 switches connect the aggregation switch,

I search in below aggregation switch, now how to identify which access level switch having this host attached, in vl 1253, there are over 10 port channels and 30 ports assigned, thus difficult to identify, can anyone help?


Legend:
        * - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
        age - seconds since last seen,+ - primary entry using vPC Peer-Link
   VLAN     MAC Address      Type      age     Secure NTFY Ports/SWID.SSID.LID
---------+-----------------+--------+---------+------+----+------------------
  1253     0011.23av.cd00    dynamic   60         F    F  vPC Peer-Link

2 Replies 2

Richard Burts
Hall of Fame
Hall of Fame

There is not an easy way to identify the switch and port to which a specific host is connected when there are 20 access switches connected to the aggregation switch. Basically what you need to do is to start with the output of show mac address table which you post, identify the interface through which this switch would access the mac address, identify what switch is connected to this interface, go to that switch and repeat the process (show mac address table for the specific mac address, identify the interface used, identify what is connected to that interface), and work hop by hop till you get to the switch where the host is connected.

HTH

Rick

HTH

Rick

for normal switch, i am able to trace, but since this is nexus, learned from peer link, i have no clue to find the interface, can anyone help