BGP offers a variety of Path Attributes, which are used to compare competing BGP pathways (routes) in the BGP table to identify the best possible path (route).

The following are some BGP Path Attributes:

• Next HOP: The Next Hop Path Attributes are used to list the IP address of the prefix's next hop. It determines whether the Next Hop is achievable. The router does not use this route if no other route can reach Next Hop.
• Weight: When you receive updates from a router, the weight Path Attributes is a numeric value provided by the router to impact the route for a prefix. It is not publicised among BGP peers, and a HEAVIER weight is preferred.
• Local Preference: Local Preference is a numeric value set as well. It is CONVEYED within a single autonomous system in order for all routers in that autonomous system to determine the optimum route to a certain network. The higher the value, the better.
• Routes injected locally: The routes injected with the network command are known as locally injected routes. These are preferable to iBGP/eBGP.
• Multi-Exit Discriminator: The Multi-Exit Discriminator (MED) allows one autonomous system to inform a neighbouring autonomous system about the optimum path to take for packet forwarding. The smaller the better.
• AS Path: The number of ASNs (Autonomous System Number) in the AS Path is specified by the AS Path. The smaller the better.