2.2.11.10 RTCP Profile Specific Extension for Peer Info Exchange
The format of the RTCP profile specific extension for peer info exchange is as follows: <32>
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Length |
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SSRC |
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Inbound Link Bandwidth |
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Outbound Link Bandwidth |
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NC |
Reserve1 |
Reserve2 |
Reserve3 |
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Type (2 bytes): The extension type. Set to 0x000C (12).
Length (2 bytes): The extension length in bytes, including this header. Set to 0x0014(20).
SSRC (4 bytes): The SSRC from which the peer info exchange is sent.
Inbound Link Bandwidth (4 bytes): The maximum inbound bandwidth supported by the host.
Outbound Link Bandwidth (4 bytes): The maximum outbound bandwidth supported by the host.
NC (1 bit): No cache flag. If NC is one, it indicates the inbound and outbound link bandwidth carried in the profile extension MUST NOT be cached and used beyond this session.
Reserve1 (7 bits): Reserved field. The sender SHOULD set it to zero. The receiver MUST ignore it.
Reserve2 (1 byte): Reserved field. The sender SHOULD set it to zero. The receiver MUST ignore it.
Reserve3 (2 bytes): Reserved field. The sender SHOULD set it to zero. The receiver MUST ignore it.