Switching/L2 path trace

[kapishmohole.cisco]

Hello,

I am looking for some utility,

We have large LAN network, with multiple links/redundant links from access to core level. STP is running on LAN. So obviously some ports on access and core switches are in blocking state, this is applicable for all VLANs.

So finally its like one complex switching network with some ports blocked.

(Its like large routing network with multiple links from each router, many ways for one destination, running complex routing protocol, and finding path for one user for its destination in this network….we can get the path using traceroute or tracert)

I want to find the switching path for any user to reach its destination, from which switch, trunk port and also L3 switch the packet flows and reaches to the destination….means I want visualize the path through switches.(L2 traceroute or path)

Is very difficult to find the path by looking at MAC address table, there is 'l2trace' command for this...but its for CATos..i want command or utility for Sup running IOS/at PCs front.

is there any utility, software to find this switching path….trace L2 path

[raju]

Hi !

It's available in Cisco works 2000 . In Cisco Works 2000 NMS, under Campus Manager , select Path Analysis and you can trace the path between two Hosts or two Gateways .

Thanks

Raju

[kapishmohole.cisco]

I have Cisco Works but not for LAN mangment, is there any other?

[glen.grant]

From what I have been able to determine L2trace is available in IOS based switches on version 12.1.14 and above though I don't know the syntax to use it as I have not yet used it to troubleshoot . Below is the syntax

*

o

traceroute mac or traceroute mac ip .

[kapishmohole.cisco]

hello,

I have Sup720 with IOS Version 12.2(17a)SX1, but as you said...there is no such command to trace MAC.