RFC Errata
RFC 5496, "The Reverse Path Forwarding (RPF) Vector TLV", March 2009
Source of RFC: pim (rtg)See Also: RFC 5496 w/ inline errata
Errata ID: 3668
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Bharat Joshi
Date Reported: 2013-06-17
Verifier Name: Adrian Farrel
Date Verified: 2013-09-17
Section 4 says:
4. Vector Attribute TLV Format 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |F|S| Type | Length | Value +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-....... F bit Forward Unknown TLV. If this bit is set, the TLV is forwarded regardless of whether the router understands the Type. If the TLV is known, the F bit is ignored. S bit Bottom of Stack. If this bit is set, then this is the last TLV in the stack.
It should say:
4. Vector Attribute TLV Format 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |F|E| Type | Length | Value +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-....... F-bit Forward Unknown TLV. If this bit is set, the TLV is forwarded regardless of whether the router understands the Type. If the TLV is known, the F bit is ignored. E-bit: End of Attributes. If this bit is set, then this is the last TLV in the stack.
Notes:
RFC 5384 defined the Join Attribute for PIM.
RPF vector is one such Join attribute.
RFC 5384 defined the format for Join Attributes to use the F-bit and E-bit.
This change aligns the terminology with RFC 5384 and aligns the bit numbers in the figure.
There is no change to bits on the wire, procedures, or implementation details.