Which two BGP attributes must be supported by all BGP implementations and must be included in every update? (Choose two.)
Which two BGP attributes must be supported by all BGP implementations and must be included in every update? (Choose two.)
In BGP, the AS path and next hop attributes are essential and must be supported by all BGP implementations. The AS path contains the sequence of Autonomous Systems a route has traversed, preventing loops and aiding in path selection. The next hop attribute specifies the IP address to forward packets to for reaching the advertised destination. These attributes are fundamental for routing information and must be included in every BGP update to ensure proper dissemination and path selection.
Next-Hop and AS Path are Well Known, Mandatory attributes
A,C are correct.
The two BGP attributes that must be supported by all BGP implementations and included in every update are: A. AS path: This attribute contains the complete path that the BGP update has traversed, showing the sequence of ASNs (Autonomous System Numbers) that the route has passed through. It helps prevent routing loops and is crucial in determining the best path selection. C. Next hop: This attribute specifies the next hop IP address to reach the destination network. It indicates the IP address to which packets should be forwarded to reach the destination network advertised in the BGP update. These attributes are fundamental to the BGP routing process and are present in every BGP update to ensure proper routing information dissemination and path selection across different Autonomous Systems.