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add notes about response size limitations to hhfm, dash, and ndt7 #306

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1699274
add notes about response size limitations to hhfm, dash, and ndt7
aagbsn Dec 1, 2025
f4dc7b4
bump spec version numbers of hhfm, dash, and ndt7
aagbsn Dec 1, 2025
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8 changes: 7 additions & 1 deletion nettests/ts-006-header-field-manipulation.md
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@@ -1,6 +1,6 @@
# Specification version number

0.2.1
0.2.2

* _status_: current

Expand Down Expand Up @@ -207,6 +207,12 @@ headers not present in both the sent and received headers.
}
```

# Limitations

The maximum response size is limited to 128 megabytes in order to not consume excessive
memory on the host device. This is believed to be a conservative maximum bounds
which should not be exceeded in normal usage.

# Privacy considerations

If the user is behind a transparent HTTP proxy that sets the X-Forwarded-For
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8 changes: 7 additions & 1 deletion nettests/ts-021-dash.md
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@@ -1,6 +1,6 @@
# Specification version number

2020-04-20-001
2025-12-01-001

* _status_: current

Expand Down Expand Up @@ -164,6 +164,8 @@ used by OONI Probe:
in reality because a server cannot encode a video into all the possible
bitrates, but is useful to measure network performance, as explained below).

- each response may not exceed 128 megabytes in size.

## Rationale of selected parameters

The initial bitrate estimate is set to 3,000 kbit/s because that
Expand Down Expand Up @@ -194,6 +196,10 @@ speed with which the last segment was downloaded. In OONI Probe,
we decided to disable this behavior by default, so to better measure
the network quality.

Response sizes are limited to 128 megabytes in order to not consume excessive
memory on the host device. This is believed to be a conservative maximum bounds
which should not be exceeded in normal usage.

# Expected output

## Parent data format
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6 changes: 5 additions & 1 deletion nettests/ts-022-ndt.md
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# Specification version number

2020-04-08-001
2025-12-01-001

* _status_: current

Expand Down Expand Up @@ -43,6 +43,10 @@ the following features. Ndt5 tests have a `"test_s2c"` key that is not
present inside of ndt7 tests. Ndt7 clients also include a key that is
called `"protocol"` and is set to `7`.

Response size of each segment is limited to 128 megabytes in order to not
consume excessive memory on the host device. This is believed to be a
conservative maximum bounds which should not be exceeded in normal usage.

# Expected output

## Parent data format
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