On 29/Jul/20 16:57, Saku Ytti wrote:
I'm not sure I understand what the option space is. This is like ISIS TLV137, protocol will populate some trash there and you'll politely access. It won't allow you to refer to the peer with any name prior to having the session up. Much like you won't see ISIS neighbours name when session is establishing, until it has actually loaded and processed the TLV137.
The IS-IS comparison came to mind as well, yes. But IS-IS is different in that LSP's are dynamically flooded upon activation on an interfaces, and those LSP's carry router information, including hostname. BGP is not dynamically setup, so in my mind, you still need literal IP addresses to set sessions up, and then this BGP hostname capability would translate those IP addresses to remote hostnames after the sessions have been established. I just wanted to clarify if this is the practical implementation and operation of the same, as the draft isn't specific on it, as I'm sure others may consider the same thought process. Mark.