MAC address table issues on switch

[Kaushik Ray]

Hello I am seeing a strange issue on the MAC address table

Attached is the drawing of the setup

When I do a show mac address table for a particular MAC which is the MAC address of the WLC I see all the VLANs being shown but not the one for 900. any advice as to why this could be the case?

sh mac address-table | include 9064
   2    c08c.60c7.9064    DYNAMIC     Fa1/0/19
   1    c08c.60c7.9064    DYNAMIC     Fa1/0/19
   3    c08c.60c7.9064    DYNAMIC     Fa1/0/19
  800    c08c.60c7.9064    DYNAMIC     Fa1/0/21

VLAN 1 is the Management but I think I should have been able to see the VLAN 900 in this mac address table as well?

Anything I need to check for this?

thanks in advance.

[Leo Laohoo]

I am not sure why your Riverbed is there.  

Riverbed recommends the appliance to be sitting between your WAN router and your core switch.

VLAN 1 is the Management but I think I should have been able to see the VLAN 900 in this mac address table as well?

Is there a Dynamic Interface exist in the WLC?  If yes, then ping that IP address.