Wenwei Weng's Blog

I haven’t updated my blog for various reasons, one of them is due to my laptop changed including while I was at Cisco and then moved to Palao Alto networks. Jekyll is a very nice framework for blog site. However setting up the development eviroment is not trial while all...

BGP routing is an important aspect of IP routing, which is the only one exterior gayeway routing protocol. There are two flavors: iBGP and eBGP, depennding on if the beighbors are in the same AS. Especially EBGP, this is the routing protocol which routes the entire internet, connects between different...

Multicast routing is an important aspect of IP routing. It can be used to distribute data (for example, audio/video streaming broadcasts) to multiple recipients in a very efficient way. Two key protocols of multicast routing Multicast Group Membership Discovery protocol: used by clients (receivers) to advertise their group membership to...

Quagga is a very popular open source routing software. It supports all main IGP protocols like RIP, OSFP, IS-IS, also EGP protocol like BGP. I thought it is interesting to try it out… Quagga software architecture The Quagga architecture consists of a core daemon (zebra) which is an abstraction layer...

My blog site was shutdown for quite a while for certain reasons. However I strongly feel this is a good way for me to capture what I learned along the way and share with anyone who might feel helpful for them. Thanks to all people who provided postivie feedback. After...