One of the topics on the CCIE Service Provider blueprint is MPLS Traffic Engineering, also called TE. This technology was developed even earlier than L3VPN and was the first ‘feature’ based on label switching. The main advantage of TE is that you can prefer a path throughout the network that’s not chosen by an IGP or something else. By giving the tunnel specific priorities, like Bryan Bartik explained earlier (http://ipexpert.ccieblog.com/2009/05/27/mpls-te-bandwidth-and-priority/), you can ensure the path is given preference or even taken down when other ‘more important’ tunnels have better priority values.

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Tags: CCIE Service Provider, CCIE SP, CCIE SP Lab, MPLS

In this post we look at an MPLS QoS mode often used when the SP manages the CE devices and therefore controls the QoS settings between them. Uniform mode is considered end-to-end because

the EXP value is copied from the IP Precedence (IPP) value on ingress, and vice versa on egress. Any changes made to the EXP value may result in the IPP value being different when it exits the cloud than it was entering it.

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Tags: CCIE Class, CCIE Course, ccie lab, CCIE lab training, CCIE R&S, CCIE Service Provider, MPLS QOS

For many service provider networks, the only addresses that need to be in the route table are those of the loopback addresses for the P and PE devices. IS-IS makes this policy very easy to implement with the use of the “advertise passive-only” command under the router isis configuration mode.

Consider a  network of 3 devices: PE1, P1 and PE2. PE1 has the following configuration:

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Tags: ccie lab, CCIE lab training, CCIE Service Provider, CCIE SP Lab, Cisco IS-IS, r&s

Rick Mur, CCIE #21946 (R&S and Service Provider), will be joining the world-class team of Instructors and Developers, at IPexpert, effective immediately. Rick earned both of his CCIE titles by his 21^st birthday, making him one of the youngest engineers in the world to accomplish this extremely difficult, yet rewarding career goal.  Now, he’s preparing for his 3rd CCIE, which he hopes to achieve at the age of 22 (2010), the CCIE Security.  Rick’s primary responsibility will be to assist IPexpert’s Instructors in CCIE R&S and CCIE Service Provider development and assist in (online) product and techncial support on the industry-leading CCIE-focused email list – www.OnlineStudyList.com. He will also be writing technical articles and white papers that will be found within IPexpert’s yet-to-be-released technical library and current CCIE-focused blog – which can be found at http://ipexpert.ccieblog.com.  In addition to holding 2 of the world’s most difficult and rewarding certifications, Rick also holds the Cisco CCNA, CCNP CCIP and Cisco Advanced Data Center Networking Support Specialist certifications. Rick also possesses a diverse background scaling across multiple vendors and technologies, which enabled him to pass and achieve the Juniper JNCIA-ER and Juniper JNCIA-EX as well as the Microsoft MCSA:Messaging (2003) and MCSE (2003).

Tags: CCIE Blog, CCIE Mailing List, CCIE R&S, CCIE Service Provider, CCIE Support, ipexpert, Rick Mur

Tags: CCDE, CCENT, CCIE Core Knowledge Quizzer, CCIE R&S, CCIE Security, CCIE Service Provider, ccie voice, CCIE Wireless, CCIE Written, CCNA, CCNA Wireless, CCNP, CCSP, CCVP