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Found 2 records.
Errata ID: 2940
Status: Verified
Type: Technical
Reported By: Ramon Casellas
Date Reported: 2011-08-18
Verifier Name: Adrian Farrel
Date Verified: 2011-08-19
Section 5 says:
PCEP operates over TCP using a registered TCP port (4189). This allows the requirements of reliable messaging and flow control to be met without further protocol work. All PCEP messages MUST be sent using the registered TCP port for the source and destination TCP port.
It should say:
PCEP operates over TCP using a registered TCP port (4189). This allows the requirements of reliable messaging and flow control to be met without further protocol work. A PCE MUST listen for incoming connections at the registered port and a PCC SHOULD use the registered port as source port but MAY use any source port (e.g. ephemeral port).
Notes:
As discussed / agreed during IETF80, IETF81 and following chairs / AD suggestion
Errata ID: 2941
Status: Verified
Type: Technical
Reported By: Ramon Casellas
Date Reported: 2011-08-18
Verifier Name: Adrian Farrel
Date Verified: 2011-08-19
Section 10.7.1 says:
o PCEP uses a single registered port for all communications. The
PCE SHOULD listen for TCP connections only on ports where
communication is expected.
o The PCE SHOULD NOT allow parallel TCP connections from the same
PCC on the PCEP-registered port.
It should say:
o PCEP uses a single registered port for all communications. The
PCE MUST listen for TCP connections only on ports where
communication is expected.
o The PCE MUST NOT allow parallel TCP connections from the same
PCC on the PCEP-registered port.
Notes:
RFC 5440 is not consistent regarding the use of RFC2119 keywords. In section 5 the RFC states "MUST" regarding the registered port and in section 10.7.1 it is stated "SHOULD". Section 10.7.1 seems to imply the PCE could listen at any port (which is technically possible, but not in line with the rest of the document). Finally, the restriction about multiple connections is confusing: Section 4.2.1 "Only one PCEP session can exist between a pair of PCEP peers at any one time" but section 10.7.1 uses "SHOULD NOT". Technically, without the TCP source restriction, it should be possible to accept multiple connections from a PCEP peer, but such a change could have broader implications