A zero-length connection ID is always good #4335
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For all packets. For all network paths.
martinthomson
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editorial
draft-ietf-quic-transport.md
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| An endpoint that selects a zero-length connection ID during the handshake | ||
| cannot send a NEW_CONNECTION_ID frame. A zero-length Destination Connection ID | ||
| field is used for all packets sent toward such an endpoint and for all network | ||
| paths. |
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I think it makes sense to clarify that the scope is for that connection in the second sentence.
| paths. | |
| paths for the remainder of the connection. |
Co-authored-by: Jana Iyengar <jri.ietf@gmail.com>
| An endpoint that selects a zero-length connection ID during the handshake | ||
| cannot issue a new connection ID. A zero-length Destination Connection ID | ||
| field is used in all packets sent toward such an endpoint over any network | ||
| path. |
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Sorry I know this has been merged already but I thought this is easier than open a new issue.
How can you use a connection with zero-length Conn ID over different paths? Doesn't an address change without Conn ID mean that the connections breaks?
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The peer could still change its address, right?
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If you have changed the address and don't have a conn ID, you cannot associate the packet to an existing connection anymore, no?
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I see your point. You can still associate it in theory, though it might be fragile - this is left to the implementation ultimately. I agree with you that the "over any network path" is mostly redundant, but I am not sure that it hurts because I don't think it suggests something that is impossible.
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You are right it's not really incorrect , I just found it confusing giving potentially the impression that using multiple paths without CID is "easily" possible. How about this phrasing to be even more clear: "A zero-length Destination Connection ID |
For all packets. For all network paths.