simplify and efficient network management with BGP over IP

The term Border Gateway Protocol, or BGP, simply means “Border Gateway Protocol.” It is an IP protocol for gateway devices that are used at the data and or network layer of the OSI Reference Model. The BGP protocol is also recognized by the ISO and the IEEE as being a suite of IP services.

BGP was created by ARIN, a National Security and Research Integrity Institute specializing in excellence in overlay technologies. Eventually, it was found to be a winner of a contest referred to as the depicted in a problematic situation in the year 1990. This particular consortium went on to coin a new internet protocol version. That is why we have COBOL with many working together.

BGP is a distance vector routing protocol. That means that it makes use of the same distance vector protocol as routing protocols used for IP routing. Basically, BGP knows the path that the packets should take and will compute the best route to take. In order for two routers to become neighbors they must be equidistant (comparable to IP counterparts) with each other. Therefore, BGP defines nodes with a destination address, which is a series of numbers separated by periods. If the two routers are routers with the same decipherable destination address, then they become neighbors. If they are routers with incompatible destination addresses, then they start a conversation known as routing.

Once the routers have exchanged destination addresses, they are often asked to exchange the related router ID and key, which is a globally unique addressable address. If the two routers have the same key, then they can exchange signatures that are made up of key values. If the two routers have different keys, then they will need to exchange them before they can start routing packets. Once routes are exchanged between the two routers, the two routers race to get to the final destination. One of the routers may leave the subsequent destination in the internal buffer. The other may use the internal buffer to record the final destination. The BGP speaker may forward the packets to the next hop router that is not yet connected to the final destination. If the first router has no forwarding solution, then the second router may forward it. BGP uses incremental updates. That means that whenever possible, the incremental updates are sent only when the routers have had a change. For instance, a router may receive a router announcement indicating that the firmware version has changed. Then the router may adjust its routing table to remove the topology changes and to add the new route. network management with BGP

Many people are unaware of BGP and look for the latest version. But BGP was developed years ago and is not something that end-users will ever need. Unless you plan to use load balancing to reach destinations across a busy network, then you will never need to use it. BGP is implemented with a keystone device manufactured by Cisco. Keystone devices are used for identifying the prefix of a network so that it can be easier to debug. There are 16 potentially conflicting prefixes in the IOS version 7.x and 15.x series. As of this writing, the IOS version 8.x series uses a different keystone device than the IOS versions 6.x and x. A keystone device is used when the prefix of a network is known. For example, with the IOS versions 6.x and x. When configuring Flash, the only supported prefix isones, and routers must be configured to recognize hosts using the prefix. Obviously, this is not a feasible solution for load balancing, since routers are not designed to sort incompatible routing information. network management with BGP

BGP might have some use in networking environments where prefix-handling is needed, but BGP does not recognize non- prefix-handling networks. Network managers are working on coming up with a standard for identifying networks that handle their own local prefixes.

Happy routing!