VLAN Leaks?

[mhoppes]

I can't put my finger on this, but I feel like there is some kind of VLAN leak that happens at times.... an example:

SWITCH A
Port 1 - VLAN5 -- airFiber5
Port 2 - VLAN5 -- airFiber24


SWITCH B
Port 1 - VLAN 5 - airFiber5
Port 2 - VLAN 10 - airFiber24

All VLANs are untagged on both sides.

Upon the airFiber24 link coming up traffic across all links will begin to drop packets and the traffic going through the switch degrades until this "loop" is broken. STP and Loop Protection never kicks in. In theory the traffic should never see itself because the VLAN number changes and terminates at the SWITCH B airFiber24. But just the same, when that second link is brought online, the moment it links up packet loss starts happening all over both switches.

I have tried this with the most recent firmware.

[sirhc]

Make a Network DIagram and post the VLAN and other relevant TABs of both switches

To be honest I do not think there is any VLAN leaks as I would see it in my network and do not and so would a lot of others?

The VLANs are handled in the core we simple configure the core and this is a mature chipset which has been in production for 8+ years so if there was a bug in the core you would think millions of other people using this core in other switches would also have complained to Vitesse?