Trouble connecting switchs Catalyst 2950T using 10/100/1000 bast T port
I'have connected two catalyst 2950T switch together using 10/100/1000 ports, the status led for those ports are green on both switchs, but link is not working (no communication between the two switchs)
Console port gives continuous messages indicating "port up" and then "port down" few seconds after and so on.
Re: Trouble connecting switchs Catalyst 2950T using 10/100/1000
In factory default configuration, all ports (FastEthernet and GigabitEthernet) are set to dynamic desirable mode in order to allow autonegotiation for trunk links. So it wouldn't be necessary to configure GigabitEthernet ports on both switchs to work in trunk mode, because they do it automatically.
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