Service Codes
Datagram Congestion Control Protocol (DCCP) Parameters
2005-08-31
2014-03-14
Service Codes
Eddie Kohler
Specification Required or First Come First Served
Service Codes are big-endian 32-bit numbers. Some Service Codes also have an
ASCII string representation; when a Service Code may be represented in "SC:"
format according to the rules in , Section 8.1.2, the ASCII column
shall provide that interpretation. Here is an example allocation:
1717858426 fdpz Frobodyne Plotz Protocol RFCWXYZ
Service Codes whose high-order 8 bits equal the value 63 (ASCII '?') are
reserved for Private Use; this is the range 1056964608-1073741823. Service
Codes whose component bytes' values are each in the set {32, 45-57, 65-90}
are allocated using the Specification Required policy (this corresponds
to no simple range). All other Service Codes are allocated using the
First Come First Serve (FCFS) policy.
See the following Javascript program to analyze one or more Service Codes,
given numerically or as strings:
(Program provided by Eddie Kohler on 2013-11-12)
0
Reserved
1-7107695
Reserved (see Note above)
7107696
LTP
7107697-1073741823
Private Use
1073741824-1145656130
Reserved (see Note above)
1145656131
DISC
Discard
1145656132-1381253967
Reserved (see Note above)
1381253968
RTCP
RTCP connection, separate from the corresponding RTP
1381253969-1381257280
Reserved (see Note above)
1381257281
RTPA
RTP session conveying audio data (and associated RTCP)
1381257282-1381257294
Reserved (see Note above)
1381257295
RTPO
RTP session conveying other media (and associated RTCP)
1381257296-1381257299
Reserved (see Note above)
1381257300
RTPT
RTP session conveying text media (and associated RTCP)
1381257301
Reserved (see Note above)
1381257302
RTPV
RTP session conveying video data (and associated RTCP)
1381257303-1398361158
Reserved (see Note above)
1398361159
SYLG
Syslog Protocol
1398361160-1685351984
Reserved (see Note above)
1685351985
Bundles
1685351986-1852861807
Reserved (see Note above)
1852861808
npmp
NetPerfMeter Protocol on the Data Channel (NPMP-DATA)
1852861809-4294967294
Reserved (see Note above)
4294967295
Reserved (Invalid - Not available for allocation)
Thomas Dreibholz
mailto:dreibh&iem.uni-due.de
2011-02-10