some notes about BGP, OSPF/IS-IS, RIP/EIGRP
BGP: run on tcp 179, path vector protocol, 65K routes eBGP: append AS_PATH iBGP: ( the same AS number), iBGP need full mesh, thus could use Route Reflector (RR, need…
Apache Kafka big picture and quick start
What is Apache Kafka? ( big picture) I found the article http://www.confluent.io/blog/stream-data-platform-1/ ( from Jay Kreps) presented a very good big picture on what Kafka suppose to do: you can…
Hadoop : A Single Node Cluster on debian 8
The core part of hadoop inlcudes HDFS and map/reduce. There are many projects around hadoop. Data lake is often associated with hadoop-oriented object storage. Now trying the hadoop ( on…
MPLS VPN/VRF
Why MPLS? Networks with more stringent QoS requirements might use IPSec-over-Internet for non-real-time traffic and MPLS for real-time and mission-critical traffic Basic MPLS, how it works: A good explanation is…