I have a number of cisco switchs (3560) and connecting all these I have a 3750. I have 4 VLANs and have set up trunking between the core and the 3560, but now I'm going to need to enable inte VLAN routing. I will do this on the core switch (3750) and my questions is if I enble the interfaces on the core switch to deal with routing will this not diable the trunk setup? I ask this because I read that using the command no switchport will configure the interface as layer 3 but would that not disble the trunking function??
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