#RoutingTableLive – MPLS Lab

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Decided to get at it early this morning since I booked my second CCIE RS attempt last night. This was a good MPLS lab with two VRFs (RED and BLUE). Two clients on each...

Troubleshooting Basic BGP Path Issues

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In everything I've been working on lately, a lot of it has revolved around BGP. Most of this has come from my CCIE studies. In practice labs and scenarios something I've become accustomed to...

Latency Issues – IP Redirects

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Sometimes, you may run into a situation where traffic enters a routed interface and then per the routing table, exits the same interface. For instance, take a look at the topology below: In that topology...

Cisco ASA 9.4 – Policy Based Routing

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It has finally happened: policy based routing is available for the Cisco ASA platform. This comes about from the new version 9.4 of the ASA software. While a lot of the time policy based...

Cisco IP SLA and Redundant Links

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In any enterprise environment, there is one thing that comes up a lot, and that is redundancy. Take the healthcare industry for instance. When you have patients needing medical care, you can't afford the...

BGP Route Reflectors

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Within BGP there are two common ways to build a BGP network. Full Mesh With a BGP Route Reflector The end goal is that each of the routers in your network has the prefixes from...

HSRP Version 1 vs Version 2

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HSRP, or hot standby routing protocol, is very commonly used in the networking world. It is a great solution for providing redundant gateways for a wide array of networks. Over time there have been...