CST – common spanning tree. A single STP instance applied to multiple VLANs STP – spanning tree protocol, IEEE 802.1D. A protocol that runs on a layer 2 network with the purpose of maintaining a loop-free topology. Because loops are not our friend.
I’m done fiddling with other stuff ABOUT the CCIE. Now it’s back to the actual CONTENT that’s going to help me pass these exams. The second half of this chapter talks about optimizing spanning-tree, etherchannels, RST, MST and more. Here we go!
01/01/2007 – 1.5 hours. Read OECG, chapter 1. 01/02/2007 – 1.0 hours. Read OECG, chapter 2. 01/03/2007 – 1.5 hours. Start OECG, chapter 3. 01/04/2007 – 1.0 hours. Finish OECG, chapter 3. 01/05/2007 – 2.0 hours. Install WordPress, create “CCIE Candidate” blog, write some preliminary content. 01/06/2007 – 4.0 hours. Tweak CCIE Candidate look and […]
This category is a summary of the time I have put into CCIE R&S track preparation. Many CCIE’s talk about how they studied 8 hours a day for an entire year, or they put 300 hours into practice labs, etc. That may be; I may end up having to put the same kind of time […]
This probably ends up being a 2-parter. It’s 6pm already, my dinner is coming soon, and I’m a little fried from the day at work. We’ll see how far I get. Here goes. Spanning-tree protocol (STP) is the language switches speak to be sure that there are no topology loops in the layer 2 network. […]
The next chapter I have to do the write-up on is Spanning Tree. Ugh. I already read it, and it was a bit of a beast. Lots of stuff I knew, but spanning-tree is one of those topics that I never quite learned as well as I should have. It was a handy thing to […]
VLAN – a virtual LAN. Ports defined to be a common broadcast domain. Can span multiple switches through the use of trunks. broadcast domain – devices that are on the same ethernet area. When a broadcast is sent to this area, everyone in the area gets it. Typically, one subnet per broadcast domain.
Good review of all the basics here: VLAN’s, starring DTP, 802.1q, ISL, tags, private VLAN’s, and more. Not a terribly long chapter, but good fundamentals to know. Definition of a VLAN – a group of ports that can span multiple devices, but are still a part of the same broadcast domain. Usually, you have a […]