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Bundle new client connection ID and path challenge in migration probes #1730

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merged 10 commits into from Sep 12, 2018
Merged

Bundle new client connection ID and path challenge in migration probes #1730

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b0396b0
Merge pull request #5 from quicwg/master
huitema Sep 9, 2018
bc74468
Specifying use of new connection ID to avoid correlation
huitema Sep 9, 2018
efeb5fc
Attempt to incorporate Martin's suggestions
huitema Sep 10, 2018
34f056e
ensures
martinthomson Sep 10, 2018
a1ecc65
Adding more specific requirements per Ian's review
huitema Sep 10, 2018
cac497f
Merge branch 'probe-cid' of https://github.com/huitema/base-drafts in…
huitema Sep 10, 2018
6c018a6
Remove trailing white space.
huitema Sep 10, 2018
5dacf5f
Remove extraneous "also".
huitema Sep 10, 2018
86ecbec
Tweak probing text
martinthomson Sep 12, 2018
17ccc69
reword, note the possibility of infinite regress
martinthomson Sep 12, 2018
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9 changes: 5 additions & 4 deletions draft-ietf-quic-transport.md
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Expand Up @@ -2074,10 +2074,11 @@ path validation with other frames. For instance, an endpoint may pad a packet
carrying a PATH_CHALLENGE for PMTU discovery, or an endpoint may bundle a
PATH_RESPONSE with its own PATH_CHALLENGE.

When probing a new path, an endpoint may want to ensure that the response, if
any, is sent to a specific connection ID. The endpoint achieves that by bundling
NEW_CONNECTION_ID and PATH_CHALLENGE frames. This ensures that at least one new
connection ID will be available at the peer for use in the probe response.
When probing a new path, an endpoint might want to ensure that its peer has an
unused connection ID available for responses. The endpoint can send
NEW_CONNECTION_ID and PATH_CHALLENGE frames in the same packet. This ensures
that an unused connection ID will be available to the peer when sending a
response.

### Initiation

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