Cisco Catalyst 4500 Series Configuration Manual page 1187

Chapter 2
The following 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#
The following 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#
The following 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#
The following 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#
The following 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
) : Fa0/3 =>Gi0/1
) : Gi0/1 =>Gi0/2
) : Gi0/2 =>Fa0/1
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
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.
traceroute mac
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