You're running IP feature set ("i") while you need IP Plus ("is"). IIRC
802.1Q support on 3640 came in 12.0T while ISL came in 11.3T. Quite a while
ago :-)Kaj > From: Justin Guagliata <[email protected]> > Date: Wed, 12 Aug 2009 09:28:05 -0700 > To: <[email protected]> > Subject: [OSL | CCIE_RS] encapsulation dot1q on 3640 > > I have one 3640 in my lab and it's running c3640-i-mz.124-21.bin. > > I'm trying to create a subinterface and it won't take the commands. I have no > problems with any of the other routers in my pod. > > BB1(config-subif)#int fa2/0.200 > BB1(config-subif)# encapsulation dot1q 200 > ^ > % Invalid input detected at '^' marker. > > Do i need a differnt IOS to support the subinterface functionality? > > Thanks, > > Justin
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