Category Archives: Routing

MPLS Layer 3 VPNs

Posted on September 16, 2009 by Jeff

In the following diagram we have a very Basic MPLS network to demonstrate how MPLS Layer 3 VPNs work.  In the  Service Provider cloud we are running OSPF between R3,R1,R5, and R6. R3 and R6 are running BGP within the … Continue reading →

Posted in MPLS, Networking, Routing | Tagged , , | 2 Comments

MPLS Basics

Posted on August 19, 2009 by Jeff

MPLS Study Notes Terminology Penultimate Hop Popping RFC 3031 Multiprotcol Transport diff payloads -Ethernet, FRLY, ATM,IPv4, IPv6 Layer 3 MPLS VPN (RFC2547) will be the focus of the 4.0 R&S Exam. Label Switching Labels used to route(switch)traffic instead of normal … Continue reading →

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So you want to Build your own CCIE Lab Rack

Posted on July 13, 2009 by Jeff

Building your own CCIE Lab Rack can be a daunting task if you’re not sure how to get started. Hopefully this will provide you a blueprint of what you will need and how to set up correctly so you can … Continue reading →

Posted in How To, Networking, Routing, Switching | Tagged , , | 8 Comments

Setting up a TCL(pronounced as “tickle”) script for CCIE Lab troubleshooting

Posted on July 7, 2009 by Jeff

TCL shell is available on Cisco IOS release 12.3(2)T and later.  So, you can run this on your routers but NOT on your switches.  This is a great tool, especially during Lab/simulation.  You will want to verify connectivity on your … Continue reading →

Posted in Networking, Routing | Tagged | 1 Comment

How to make your own Ethernet Network cables

Posted on June 29, 2009 by Jeff

If you are planning to build your own CCIE Lab rack, consider making your own network cables.  Making your own network cables is a good way to save money if you need to make a lot of them.  At $7 … Continue reading →

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