Unable to ping one of the switch SVI from WLC

[Adnan Khan]

Unable to ping one of the switch SVI from WLC but can ping all other SVIs. NO ACL on any SVI. very strange that I can ping all SVIs but one.

connectivity

WLC - Switch

[Sandeep Choudhary]

1. check if its (SVI) interface is up or not!!

2. Also check if you allowed all vlans on port where WLC is connected ?

Regards

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[Adnan Khan]

SVI interface is up and wlc trunk allowed all vlans. actually topology is as below

WLC-->L3Switch1----Router1--------Router2->L3Switch2->L2-Switch->PC

I can ping from L3Switch1 to all SVI on L3Switch2 including the one that has a problem while from WLC.

I can ping from L3Switch2 to WLC mgmt IP but can't ping from WLC to  L3Switch2 only one SVI, rest of the SVIs I can ping.

[Rich R]

Does the WLC have a valid route to that IP?

Packet capture at each hop to see where the ping request or reply gets dropped then you know where to focus your investigation.

debug icmp at L3Switch2 will also show whether you receive the ping request there.