Posts tagged Cisco
In new architecture of routing/switching hardware (router / L3 switch), we always found control plane module an data plane module attach, or maybe there is always routing engine and ASIC processor in one box router/switch.
Control Plane have role to take responsibility handle routing processing, from route update, exchange routing information, exchange label, update cost/weight in routing path and make routing table/routing cache. it’s usually consist of high power cpu to handle all the routing calculation.
Data Plane or Forwarding Plane have role to take responsibility handle forwarding traffic/packet based on label and lookup the routing information from routing table/cache, because of this large packet handle an ASIC processor needed to do packet forwarding.
VPLS (Virtual Private LAN Services) known as Metro Ethernet Services for Point to Multipoint Sites. what technology behind this kind of services? and for what this services actually defined?
VPLS / MetroEthernet can be used to expand and extending L2 Domain over L3 Routing. the basic technology that empowered this services is MPLS (MultiProtocolLabelSwitching), the MPLS technology can produce a services in L2 Domain and L3 Domain with separation of forwarding table into many of virtual forwarding table called VRF. MPLS topology consist of many PE (Provider Equipment) and several Core router called P Router. in MPLS Cloud, it’s used an IGP (internal gateway protocol) dynamic routing technology to connected all PE & P Router all together, and wrap it all using LDP or BGP Signalling. each path from one router to another router is created for label distribution and label switching which is called LSP (Label Switch Path). the LSP used to delivered the data from one router to another router, using vrf from one router can connected many of customer to use the same resources n clouds.
After vacuum for about 2 years, now with a new look of my blog, i am ready to start new stories all about networking and security.
Now, with my job position as network & system engineer on my office, i will start all concept and implementation within my corporate.
With many networking equipments, network & communication media, and many different technology in this blog i will share about product features, technology, and how to implement from small network to high availability huge data center.
From this post, i will divide categories within this site as:
– Open Platform
– Proof of Concept
– Media Access
– Tips n Tricks