Add some guidance for ACK scheduling #129
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Yanmei-Liu
reviewed
Jul 8, 2022
draft-ietf-quic-multipath.md
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| the peer. However, the sender can be interested by estimating the RTT of | ||
| a path instead of the sum of the forward one-way delay of a path and the | ||
| return one-way delay of another. To that end, a receiver should | ||
| periodically send ACK(_MP) frames on the path they acknowledge packets. |
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Sending ACK_(MP) frames on the fastest path is one of the ACK scheduling strategies, but IMO the most common strategy is sending ACK_(MP) frames on the same path of the packet was sent. By the way, as QUIC-TRANSPORT doesn't contain a mechanism to calculate one-way-delay on a certain path, it's very important that we need to add some guidance for one-way-delay calculation(e.g. [QUIC-Timestamp]) with the fastest path ACK scheduling strategy, and some guidance for the potential impact on congestion control.
Yanmei-Liu
requested changes
Jul 8, 2022
Yanmei-Liu
approved these changes
Jul 11, 2022
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I believe we can merge this now as it is. If we want to add more guidance later we should open a separate issue and another PR. |
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Fixes #123.