Found 3 records.

Status: Verified (3)

RFC 3611, "RTP Control Protocol Extended Reports (RTCP XR)", November 2003

Errata ID: 1759
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Timur Friedman
Date Reported: 2009-04-07
Verifier Name: Cullen Jennings
Date Verified: 2009-04-07

Section 6.3 says:

"recv-rtt"

It should say:

"rcvr-rtt"

Notes:

Sec. 6.3 describes the SDP attribute in Sec. 5.1, but erroneously calls it "recv-rtt" whereas it is in fact "rcvr-rtt". The IANA, following Sec. 6.3, had recorded "recv-rtt" but has corrected this and now records "rcvr-rtt".

Errata ID: 3795
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Stephen James
Date Reported: 2013-11-11
Verifier Name: Ben Campbell
Date Verified: 2015-07-22

Section 5.1 says:

rtcp-xr-attrib = "a=" "rtcp-xr" ":" [xr-format *(SP xr-format)] CRLF

It should say:

rtcp-xr-attrib = "a=" "rtcp-xr" [ ":" xr-format *(SP xr-format)] CRLF

Notes:

The ABNF for the attribute is causing some interoperability issues.
The text as written shows that the colon is required while the parameters are optional.
This leaves the format: "a=rtcp-xr:" the required format. Vendors are using "a=rtcp-xr" which strictly violates the ABNF above. Moving the ':' into the optional part seems correct.

Errata ID: 4597
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Liu Yuanlong
Date Reported: 2016-01-22
Verifier Name: Ben Campbell
Date Verified: 2016-05-25

Section 4.7.2 says:

burst density 84, which corresponds to 33%

It should say:

burst density 85, which corresponds to 33%

Notes:

error calculation for burst density, burst density=4/12*256=85.33...?85

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