Tag: ccnp-route
BGP Multipath Load Balancing
Scenario You’ve got a single multi-homed BGP connection to two ISPs. You want to load balance traffic to a specific destination but you have no control over what the ISPs are doing with that route as it traverses…
Read More »BGP Troubleshooting
Scenario: The fermentum corporation has hired you to troubleshoot their international network that consists of BGP routers. There are a number of issues. Some BGP routers are unable to establish a neighbor adjacency and others are having issues…
Read More »BGP Filtering Extended Access-List
Scenario: Ever since Diablo was defeated Deckard Cain decided to become a network engineer. Two decades have passed and the village of Tristram has upgraded their network for inter-AS connectivity. Recently some security issues have been reported and…
Read More »BGP AS Path Access List
Scenario: Sugar Cane company is a international company that is growing at a rapid rate. To connect all the different sites BGP is used, the security officer however doesn’t want all the sites to have full connectivity and…
Read More »BGP Soft Reconfiguration
Scenario: You are a network engineer responsible for the network for a local fighting tournament. Two of the fighters exchange tactics using BGP to advertise the networks. They don’t want to exchange everything they know so they are…
Read More »BGP Timers
Scenario: You are a film producer and parttime network engineer. You use BGP to connect two sites to each other but you feel things are a little slow. Let’s see if you can tune up some of those…
Read More »BGP Filtering Maximum Prefix
Scenario: The national hedgehog protection foundation needs your help with their network. They are using BGP for their International networking but the router they are using is a bit old and doesn’t take many prefixes in its BGP…
Read More »BGP Attribute Router ID
Scenario: You are one of the trainees at a fairly small ISP. Your boss is on vacation and all colleagues are out of the office troubleshooting problems at customers. You receive a phonecall of one of the network…
Read More »BGP Attribute AS Path Ignore
Scenario: You are responsible for a International network. All routers are connected through BGP. One of the network administrators in NewDelhi configure AS Path prepending for their AS so Paris will send all traffic through Sydney. You heard…
Read More »BGP Peer Group
Scenario: Your autonomous system has a lot of IBGP routers. You are already familiar with route reflectors which saves you a lot of trouble configuring all the IBGP neighbor peerings. You just read about BGP peer groups which…
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