Following are the characteristics of the Border Gateway Protocol:

• Configuration of Inter-Autonomous Systems: The Border Gateway Protocol's PRIMARY function is to provide communication between two autonomous systems.
• Next-Hop Paradigm is supported by the Border Gateway Protocol.
• Within the autonomous system, there is coordination among several BGP speakers.
• Path Information: In addition to the reachable destination and next destination pair, BGP advertisements offer path information.
• In the routing-decision algorithm of BGP, numerous attributes are used.
• External neighbours between various autonomous systems are COMMUNICATED via eBGP.
• Internal neighbours inside the same autonomous system use iBGP.
• It USES weight to alter the outward traffic routing from a single locally configured router.
• Policy SUPPORT: The Border Gateway Protocol can implement policies that the administrator can configure. A router running BGP, for example, can be set to discriminate between routes known within the autonomous system and routes known from outside the autonomous system.
• TCP (Transmission CONTROL Protocol) is used in conjunction with Border Gateway Protocol.
• Border Gateway Protocol helps networks save bandwidth.
• Classless Inter-Domain Routing (CIDR) is supported by BGP.
• Security is also supported by BGP.