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There are mainly three IPv6 transition methods; Dual-Stack, Tunnelling, and Translation. Careful engineers can understand the difference between IPv6 migration and IPv6 transition. All of these three technologies are used...
Actually all are the same thing. VPWS stands for virtual private wire service , VLL stands for virtual leased line and EoMPLS stands for Ethernet over MPLS. MPLS Technologies and...
Route Redistribution Best Practices - You need route redistribution for many reasons. In this post,the drivers for the route redistribution but more importantly the best practices for applying route redistribution...
CSC Carrier Supporting Carrier is a hierarchical MPLS VPN architecture between the Service Providers. Service is an MPLS VPN service mostly but doesn't have to be as you will see...
MPLS-TP - Multi-Protocol Label Switching Transport Profile (MPLS-TP) is a new technology developed jointly by the ITU-T and the IETF. The key motivation is to add OAM functionality to MPLS...
IS-IS Interview Questions - IS-IS is a link state routing protocol. Commonly used in Service Provider networks. Back in old days, IS-IS routing protocol software was more stable and robust...
Fate sharing in networking - Is fate sharing bad thing in network design? Someone asked this question recently on my youtube channel and I want to share a post for...
Network mergers and acquisitions are processes that can be seen in any type of business. As network designers, our job is to identify the business requirements of both existing networks...
Most of the educational documents related to PS Core Network start with Call Flows. Attach Call Flow, PDP Context, Paging, etc. Basically that was my problem when I started working...
Inter-AS MPLS VPN lets two or more service providers deliver an end-to-end Layer 3 VPN to a customer whose sites span different autonomous systems. There are three standard ways to...
IEEE 802.1aq Shortest Path Bridging (SPB) uses IS-IS as an underlying control plane mechanism that allows all the links in the topology to be active. In sum, it supports layer...
Route where you can , switch where you must. If you are from networking background most probably you heard this many times. But is it true or like anything else,...