Advertise a UDP receive limit
02OPT’s CLASS field signals the maximum UDP payload the requester can reassemble and receive.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 6.2.3 ↗
RFC 6891 · § 6.2.3EXAMPLE
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A smaller path can still require size adjustment or TCP.
A smaller path can still require size adjustment or TCP.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Values below 512 are treated as 512.
- Values below 512 are treated as 512.
- Receive capacity does not prove that the network path can deliver that size without fragmentation.
The drawing is a simplified worked example. Follow the linked RFC and its updates for implementation requirements.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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