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IEWB Physical Topology Cat3550 Trunk Problem
Joshua wrote: > Hi, > > I tried to hook up my gears again to start lab preparation. I followed IEWB > physical topology and weired, > > SW1 only port fa0/16-18 can up as trunk with SW3; port f10/13-15, 19-21 > showed “notconnect”; > SW2 only port fa0/16-18 can up as trunk with SW3, port f10/13-15, 19-21 > showed “notconnect”; > SW3 only port fa0/13-15, 19-21 up as trunk with SW1 and SW4, port f10/16-18 > showed “notconnect”; > SW4 only port fa0/19-21 up as trunk with SW3, port f10/13-15, 16-18 showed > “notconnect”; > > SW1, SW2 and SW4 are: > Switch>sh inv > NAME: “Switch”, DESCR: “Cisco Catalyst 3550 24 10/100 baseT ports + 2 Gig > uplink > s fixed configuration Layer 2/3 Ethernet Switch” > PID: WS-C3550-24 , VID: M0 , SN: CAT0826N4G4 > … > System image file is “flash:c3550-ipservicesk9-mz.122-25.SEC2.bin” > > SW4 is WS-C3750-24TS > > Does it because 3550 have trunk limitation, or IOS problem? > > My first thought is: “check the cables, and make sure the interfaces are not shutdown at the other end”.
– Bogdan Sass CCAI,CCSP,JNCIA-ER,CCIE #22221 (RS) Information Systems Security Professional “Nothing in life is to be feared, it is only to be understood”
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