Cisco Catalyst 4500 Series Command Reference Manual page 1142

traceroute mac
This example shows the Layer 2 path when the switch cannot find the destination port for the source
MAC address:
Switch# traceroute mac 0000.0011.1111 0000.0201.0201
Error:Source Mac address not found.
Layer2 trace aborted.
Switch#
This example shows the Layer 2 path when the source and destination devices are in different VLANs:
Switch# traceroute mac 0000.0201.0601 0000.0301.0201
Error:Source and destination macs are on different vlans.
Layer2 trace aborted.
Switch#
This example shows the Layer 2 path when the destination MAC address is a multicast address:
Switch# traceroute mac 0000.0201.0601 0100.0201.0201
Invalid destination mac address
Switch#
This example shows the Layer 2 path when the source and destination switches belong to multiple
VLANs:
Switch# traceroute mac 0000.0201.0601 0000.0201.0201
Error:Mac found on multiple vlans.
Layer2 trace aborted.
Switch#
This example shows how to display the Layer 2 path by specifying the interfaces on the source and
destination switches:
Switch# traceroute mac interface fastethernet0/1 0000.0201.0601 interface fastethernet0/3 0000.0201.0201
Source 0000.0201.0601 found on con6[WS-C2950G-24-EI] (2.2.6.6)
con6 (2.2.6.6) :Fa0/1 =>Fa0/3
con5 (2.2.5.5
con1 (2.2.1.1
con2 (2.2.2.2
Destination 0000.0201.0201 found on con2[WS-C3550-24] (2.2.2.2)
Layer 2 trace completed
Switch#
Related Commands Command
traceroute mac ip
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
2-1084
Chapter 2
) : Fa0/3 =>Gi0/1
) : Gi0/1 =>Gi0/2
) : Gi0/2 =>Fa0/1
Description
Displays the Layer 2 path that is taken by the packets from
the specified source IP address or hostname to the specified
destination IP address or hostname.
Cisco IOS Commands for the Catalyst 4500 Series Switches
OL-27596 -01