This lab is different. Instead of a focused lab about one main topic, this one covers several: VLANs, VLAN trunks, Spanning Tree, and EtherChannel. And most CCNA folks will take more than the [...]
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 one of two dynamic protocols to negotiate [...]
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 links blocking the other link. [...]
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 Protocol (STP), and its [...]
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 Protocol (STP), and its [...]
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 trunk also allows traffic in 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 new VLANs? This lab gives [...]
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, especially if you try them from the CLI of [...]
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 access switch configuration required when [...]
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 lab, a VLAN config lab can give you a few [...]
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 before you go take the CCNA exam, but getting one more rep in [...]
Of all #CCNA topics in the ICND2 half of CCNA, Spanning Tree Protocol (STP) looms with more intimidation than most. As for Mastering STP verification, the process begins with mastering the show [...]
To analyze Spanning Tree for #CCNA, you need to think about the root switch, then the root ports on the non-root switches, and then designated ports. That analysis usually begins with the show [...]
Today’s question once again gets specific about RSTP logic instead of STP. Look back to the original question first before looking at this answer. As usual, the answer post gives the answers, and [...]
This will be the last one of these STP vs. RSTP questions for a while, unless I hear a clamoring for more! This next question follows the same format. One secondary goal of giving you several [...]
Today’s question and answers actually exercise more STP logic than RSTP, with the RSTP materials basically reviewing terms and features. Look back to the original question first before looking at [...]
This post continues the #CCNA exam practice questions comparing STP and RSTP. Can you look at a switch design, and with confidence, describe what RSTP will do differently than STP? The questions [...]
This next #CCNA STP vs RSTP question zeroes in on RSTP scenarios, but the question and answers also emphasizes some of the similarities between the two. As usual, the answer post gives the [...]
The #CCNA exam has some challenges with the discussion of STP vs RSTP. The old age of STP means that many people come to their CCNA study with preconceptions, some of which may get in the way. [...]
The first STP vs RSTP question in the series asked only about STP, as a way to get you thinking about the features in common between STP and RSTP. Today’s post gives the list of correct answers, [...]
STP has been around forever it seems, and its newer and faster cousin, RSTP, has been around for over a decade now as well. For those first learning STP and RSTP, some of the biggest challenges [...]
Long story, but I had a reason today to try and think of a case in which a temporary loop might occur for which the listening state in STP was really necessary. The short answer? I couldn’t [...]