VLAN is tied to this interface shows "up/down". Much googling ensues and then I realize our little cisco switch has decided there is a spanning tree issue and has blocked the port.

In short, though, I think you can practice most STP-related config for CCNP SWITCH, with the exception of 802.1s MSTP. The STP topology may be a bit boring, but you can practice the commands.

I've got a customer with a Dell switch (power connect 6248 I think) with 3 uplinks to my network. The uplinks are separate layer 3 links, each one being a separate IP block in a separate VLAN on ...

Our project intends to evaluate and compare the performances of STP and RSTP on Cisco switches supported by OPNET. We were planning to do the comparison of STP with more other types such as Multiple ...

The 3 switch topo would work well with (at least) 1 portchannel and 1 other trunk between each pair of switches. The STP tiebreakers and show command output differs a bit comparing portchannels ...

Once you're ready to make the jump to a more sophisticated switch, what do you need to know? Let's answer some of the most frequently asked questions and explore the basic configuration of Cisco ...