The Border Gateway Protocol (BGP) is a routing protocol that has been considered to be the hardest possible protocol in all stages, be it the design, the configuration or maintenance. But even though this notion has witnessed quite large number of cases where it got proved as a valid statement, there are some totally different situations where the BGP stood as the only option to get the concerned work completed.In other words, one could say that through the deployment of BGP ina network alone could increase its security and maintain a remarkable stability.
Here are those major situations or reasons where BGP becomes the most beneficial protocol in comparison to other popular protocols:
- Advantages of the Internet Service Provider
For those who run a business of internet provider, installing BGP in the network becomes almost compulsory. Consumer-focused ISPs who have tried their best to get around with this recommendation and have taken the help of BGP only to group with their upstream ISPs eventually had to deploy the BGP to bring the desired stability in their network and had to maintain a standard quality-of-service all through.
- Services for Layer 3 VPN
We all have observed a variety of technologies that are used today to implement the Layer 3 VPN services, among which MPLS-based VPNs have really proven themselves to be a solution that has the highest scope of scaling up, mostly because of using the BGP as the internal routing protocol. For the service providers, it is a good thing that they won’t have to deploy a BGP in every possible place if they opt to deploy the MPLS/VPN as their preferred solutions.
- Increasing the Network Stability
Although there are a kind of network engineers who always try to use the BGP as the only routing protocol for their networks, that is certainly not the way one should use it. A good BGP design would rely more on another protocol that can give faster routing like the OSPF or the EIGRP to provide the core routing in the network.In that case the service of BGP would henceforth be responsible for the routing the network for the customers.
- It Gives Immediate Response
As BGP has the option where a user can specify any IP address that can act as the next stop for any IP prefix. This is a property which is frequently used to ensure the optimum routing service across a lengthy BGP autonomous system.
- Bigger Web Caching Deployment
BGP does not only carry a good number of attributes and describe them about the IP routes, it would even allow its users to add an extra baggage to each and every IP route.It launches effective advertisements that takes the shape of BGP communities and are transparent in nature to keep everyone updated about the current status of the network.
The Bottom Line
Though BGP is always been categorized more as a complex routing protocol, its deployment procedures are followed in large enterprise networks that can bring about such significant benefits, which in recent days has become mandatory for maintaining a service provider environment.