Well Known :- All BGP
implementations must understand and support it. It cannot be ignored.
implementations must understand and support it. It cannot be ignored.
- Mandatory:- Must be
present in all update and all will support it - Discretionary:- It can
or cannot be present in update(optional) but all implementations must support
it.
Optional:- It is not mandatory to include and
support it.
support it.
- Transitive:- Can travel from one AS to another.
- Non-Transitive:- If
received a router from peer then it will not be passed to its peer.