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Both layer 2 EtherChannel and layer 3 EtherChannel use the same set of commands to create the channel. You have the option to use static configuration or…
EtherChannel takes a big step towards improving STP. With two links between switches, but without using EtherChannel, each instance of STP could use only one of the…
LAN switches use many default settings that work without you having to do anything, and oftentimes, you can leave those default settings as-is. However, with Spanning Tree…
LAN switches use many default settings that work without you having to do anything, and oftentimes, you can leave those default settings as-is. However, with Spanning Tree…
VLAN trunks between Cisco Catalyst switches support all VLANs known to the switches. As time progresses, each time the switch learns of a new VLAN, the VLAN…
Configuring VLANs on access switches may be the most common repetitive configuration task in many networks. So what do you configure when adding new access devices to…
You can memorize VLAN trunking commands by staring at a table – but you will remember them much better if you try different combinations in sample labs,…
Ready to prepare some access switches to support IP phones? This latest config lab sets up the problem for that specific task. The lab shows the common…
Creating a VLAN is simple: just configure the vlan number command. However, even in a small network with four switches, like the one used in this next…
Short and sweet – how do you create new VLANs and put a couple of ports in each? Today’s lab should be an easy and automatic process…