Orhan Ergun
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Orhan Ergun
BGP Path Hunting/Exploration
Only one change or link flap can cause one hour or more traffic drop. It is weird, right? But this is true. In this article BGP Path Hunting/ Path Exploration behavior will be shown, BGP route flap dampening and its variants will be explained and how only one interface flap can cause very long down […]
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The post BGP Path Hunting/Exploration appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Network Topologies
Resiliency of the networks is almost the most important design criterion which needs to be considered. Packets need to be reached to destination within the time expected by the application. Although too much redundancy will affect MTBF/MTTR curve directly and start to increase MTTR of the entire system, carefully designed network topologies will play a […]
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The post Network Topologies appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Fast Reroute Mechanisms
Network reliability is an important measure for deployability of sensitive applications. When a link, node or SRLG failure occurs in a routed network, there is inevitably a period of disruption to the delivery of traffic until the network reconverges on the new topology. Fast reaction is essential for the failed element. There are two approaches […]
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The post Fast Reroute Mechanisms appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Hot,Cold, Mash Potato Routing and BGP Route Reflector Design Considerations.
If someone tosses you a hot potato, do you want to hold it a long time? If you like pain maybe the answer is yes – but how many of us like pain? In the same way, hot potatoes are very applicable to the Service Provider environment. When a service provider receives a packet, if […]
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The post Hot,Cold, Mash Potato Routing and BGP Route Reflector Design Considerations. appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
INTER-AS VPNs PART -1
MPLS is widely used technology within Service Providers and sometimes also within Enterprise networks. One of the mostly used application of MPLS is MPLS VPN. There are two flavors of MPLS VPN which is Layer 2 and Layer3 VPNs. Basically layer2 VPNs, service provider gives layer2 connectivity to the customer and PW established for each […]
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The post INTER-AS VPNs PART -1 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.