On Wed, May 03, 2006 at 02:24:58PM +0200, a.gatta wrote: > This interface has a trunk to a catalyst switch. On Thu, May 04, 2006 at 01:47:48PM +0200, a.gatta wrote: > The switch puts in blocking state the two vlan : > > > 3w0d: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer > vlan id 608 on FastEthernet0/23 VLAN609. > 3w0d: %SPANTREE-2-BLOCK_PVID_PEER: Blocking FastEthernet0/23 on > VLAN0608. Inconsistent peer vlan. > 3w0d: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/23 on > VLAN0609. Inconsistent local vlan Are you sure that the catalyst switch can do IVL? If they can only do SVL, then it won't work. For those that don't know it: IVL (independent vlan learning) has a mac-address table per vlan (probably implemented by adding the vlan to the mac as key), and SVL (shared vlan learning) has a shared mac-address table. Usually switches < $1000 won't do IVL (at the time I started using vlans, maybe that has changed), unless you are talking about those cheap routers that use something called mac-cloning (and from the description, I guess it is a kind of IVL). -- begin LOVE-LETTER-FOR-YOU.txt.vbs I am a signature virus. Distribute me until the bitter end