Its a quite simple question i guess. We are doing some changes in the Network topology. There is a single 3548 switch which have uplinks to 7 other swichtes. There is an 3524 switch which is connected to an old 2924 switch and 2924 is connected to 3548. All switch ports are on default vlan. Now when i remove the 3524-2924 uplink and connect the 3524-3548, the link does not come up !!! 3524 is an external switch and has 3 vlans to seperate the traffic and all ports have portfast enabled only on this switch.
I am out of clue what could be the problem. Please guide.
Thanks in advance.