This should be really simple for you guys.
The SF300 Switch is in Layer 2 Mode. I have 3 VLANs configured on this switch:
VLAN1 - Default VLAN
VLAN2 - Wireless
VLAN3 - Video (management VLAN)
I moved the management VLAN from VLAN1 to VLAN3.
I have a single uplink going from the cisco switch to a core 3com Switch (uplink ports on both ends are tagging VLAN2 and VLAN3).
Now, from my 3Com switch, I can ping my VLAN3 endpoints. However, I cannot ping the management interface. If I plug a laptop directly to a VLAN3 access port on the Cisco switch, I don't have any problems. But I cannot ping it from my 3Com switch.
Any idea? Is it possible that management interface is not accepting my request because the management interface on VLAN3 is receiving tagged packets from the 3Com switch?
Wondering if the only way to fix this is to turn on layer 3 mode.
Thanks guys.
