Switched Virtual Interfaces on Cat3550 vs Cat6500

From: CCIEin2006 (ciscocciein2006@gmail.com)
Date: Wed Jan 11 2006 - 15:52:13 GMT-3


Hey guys,

I made some observations and I was wondering if someone could verify/explain
them.

1. When creating a SVI on a Cat3550 switch (i.e. Interface Vlan50) the
interface will remain in a down/down state until the actual vlan (in this
case vlan 50) is configured. Is this correct?

2. When creating a SVI on a Cat6500 switch, creating the actual vlan is not
enough to bring the interface to an up/up state. You actually need a device
connected to that vlan to be in an up/up state. If there are no devices
connected to that vlan the virtual interface will go to down state.
Is that correct? Why is that?

Thanks!



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