In Inter-AS, we saw how the VPN customers can communicate to each other while connecting to different ISPs. Some VPN customers are service providers who further offer services (VPN/Internet) to their end customers. The network provider provides an MPLS VPN backbone to the customer carrier. The customer carrier […]
Yogita Bansal is a Engineer with 6 years of overall experience in Telecom and Networking. She is very enthusiastic when it comes to learning anything new as well as challenging. The networking field is not just her job but is more of a hobby.
In Inter-AS Model Option B, instead of ebgp per vprn , a single MP-eBGP session is established between ASBRs for VPN-IPv4 routes exchange. This model is also known as ASBR-to-ASBR approach or MP-eBGP for VPN-IPv4 exchange. MP-eBGP is similar to MP-iBGP, the only difference is in the way […]
Today, we will discuss how to provide Internet Access to customers on Nokia routers. Internet access to VPRN customers can be provided by various solutions depending on the topology: When internet routes are in GRT: CE uses a separate interface terminating in PE’s Global Routing Table (GRT) CE […]
Today, we are going to see how to load balance the traffic and avoid loops in case of Dual-Homed VPN network on Nokia routers. Below is the topology Provider AS 100 consists of 3 PE routers : PE-1, PE-2 and PE-5. PE-5 is the Route reflector with PE-1 […]
Today, we are going to discuss Hub and Spoke Topology in a Provider Network. A typical example of Hub and Spoke is Headquarters and Branch offices where each Branch office communicates only with Headquarters. In case Branch-to-Branch communication is required, it is done via Headquarters only. HQ basically […]
In the last post, we learned how to configure a full mesh VPRN on Nokia routers. We saw that Blue and Red customers were not aware of each other. Now the requirement is to have Blue-1 talk to Red-1 but not to Red-2 and vice versa. This means […]