Genie's Tech Blog

Where knowledge has no dimensions

FRoMPLS on IOS XR

Hello Friends, Today we are going to discuss on another L2VPN implementation i.e. FroMPLS (Frame-Relay over MPLS). In the early days, when Frame-Relay service was heavily used in the customer networks, the Service Providers used to provide Frame-Relay services with the help of Frame-Relay switches like LS1010 and several others. But over the time as the technology have advanced, the Service Providers have upgraded their network to use MPLS which gives them the flexibility to provide any kind of L2 service be it PPP or FR or ATM or plain Ethernet. They don;t need to deploy specific hardware in... [More]

MPLS TE Affinity

Hello Friends, Today, i am going to have an interesting discussion on Coloring concept in MPLS TE which is actually implemented through Affinity value and mask. You must have already read in my previous posts as how MPLS TE works. Today, we will be seeing how Affinity works and what is it used for. Before we start off with Affinity, lets first discuss the MPLS TE property called Attribute-Flag. Its a 32-bit bitmap on a link that can indicate the existence of up to 32 separate properties on that link. The default value of this property is 0x0. The attributes can vary from 0x0 to 0xFFFFFFFF. Th... [More]

Inter-Area MPLS TE on IOS-XR

Hello Everyone, As mentioned earlier, today I will be discussing about Inter-Area MPLS TE. In my previous blog, we already discussed regarding Inter-Domain MPLS traffic engineering and we further discussed on the Inter-AS MPLS traffic engineering. We are now going to the second form of Inter-Domain MPLS traffic engineering i.e. Inter-Area MPLS traffic engineering. Inter-Area MPLS TE is fairly simple as compared to Inter-AS MPLS TE. Also, I will be discussing this topic on IOS-XR platform. The MPLS TE Interarea Tunnels feature allows you to establish MPLS TE tunnels that span multiple Interio... [More]