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I have a client that recently had a new internet T1 installed in addition to their existing ADSL connection.They purchased a 1721 router with the WIC-1DSU-T1 and a WIC-1ENET.I need to be able to preferably use both connections at the same time for lo...
We resolved this issue by ensuring that BPDUGUARD was enabled on all PortFast ports. This basically says that if it detects a BPDU coming in, shut the port down. The port will indicate "err-disable". So while the phone itself doesn't generate BPDUs, ...