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RFC 6846, "RObust Header Compression (ROHC): A Profile for TCP/IP (ROHC-TCP)", January 2013

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: tsv
See Also: RFC 6846 w/ inline errata

Errata ID: 4490
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Didier Barvaux
Date Reported: 2015-10-04
Verifier Name: Magnus Westerlund
Date Verified: 2019-12-17

Section 8.2 says: 

COMPRESSED sack3_irregular {
   discriminator =:= '00000011';
   block_1       =:= sack_block(ack_value);
   block_2       =:= sack_block(block_1.UVALUE && 0xFFFFFFFF);
   block_3       =:= sack_block(block_1.UVALUE && 0xFFFFFFFF);
   ENFORCE(length.UVALUE == 26);
 }

It should say:

COMPRESSED sack3_irregular {
   discriminator =:= '00000011';
   block_1       =:= sack_block(ack_value);
   block_2       =:= sack_block(block_1.UVALUE && 0xFFFFFFFF);
   block_3       =:= sack_block(block_2.UVALUE && 0xFFFFFFFF);
   ENFORCE(length.UVALUE == 26);
 }

Notes:

block_3 should be encoded with block_2.UVALUE as reference instead of block_1.UVALUE. All other sack[1-4]_list_item() and sack[1-4]_irregular() methods are defined this way.

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