Well, I am back.. I just finished typing up my notes for CCIE R&S, and I have a lot to say. It turned out to be 210 pages, so I have a hard copy next to me, and there will be some more reading and blogging happening soon :). On a better note, I scheduled […]
Many people don’t understand a private VLAN and when to use it. I will try to explain what it is and how to implement it properly. A private VLAN can block host-to-host communication at layer 2, only allowing them to talk to their default gateway. I say essentially out of their broadcast domain because a
VLAN Trunking Protocol, or VTP, is a Cisco proprietary protocol allowing you to pass VLAN information between switches. There are three modes that VTP can be configured in VTP Server mode is the default, and it will send VTP updates to other VTP servers or client devices over a trunk or port channel. VTP Client
VLAN Trunking Protocol Read More »
Now that we have the basic configuration out of the way and the device is manageable, the next step is configuring the ACE to load-balance for a site. Our task will be to configure the following; The configuration for the above is; I am trying to get my hands on one of our spare 6500’s
Basic ACE Loadbalance Configuration Read More »
The configuration we will look at is an ACE module that goes into a 6500 series chassis. It would help if you did some prep work on the 6500 before configuring the ACE. The first step is to create the VLANs; in this example, we will use VLAN 4 and VLAN 67. The next step
Basic Cisco ACE Configuration Read More »
Wow, it’s been a long time since I’ve posted. I have been knee-deep in studying for my CCIE R&S, learning my new environment at my new job, and being a father to my newborn son. I will start the New Year with something new I learned at my job: how a Cisco ACE works and
What is a Cisco ACE Read More »
I just passed 642-611 and am now a CCIP. I will still post the MPLS blogs in my downtime while waiting for my books for CCIE Security.
LSR (TSR) stands for Label (Tag) Switched Router. This is where you can see how MPLS can work. An LSR, if it is at the network edge, can impose (Push) or dispose (POP) of a label, while the intermediate LSRs swap labels. We are going to base our discussion on the below diagram. The above
As you might have guessed, LSP stands for label-switched path, and TSP stands for tagged-switched path. As shown in the example below, this is the path your label-switched packet will take through your network. Here are a few facts on LSP/TSPs
When I started writing this blog post in Word, I thought I would throw all the MPLS acronyms into one blog post. I have realized it is way too long and would probably make your guys fall asleep, so I have decided to break it down by acronym. We are first going to look at