Itu-T G.8265-1 Profile Compliance; Default Profile (Multicast) Compliance - Ieee1588-2008 Annex J; Telecom-2008 (Unicast) Proprietary Profile - Symmetricom TimeProvider 5000 User Manual

To be fully compliant to the ITU telecom profile, a PTP protocol must support the
mapping between SSM and PTP clockClass as defined in G. 8265.1. The SSM QL
value, defined in ITU-T G.781, is transferred through the Clock Class attribute
carried in PTP Announce messages. This mapping is explicitly defined for
frequency synchronization, but Symmetricom's implementation assumes it is
applicable to time synchronization. See
implementation of the G.8265.1 SSM-clockClass mapping table.
Table 4-4 shows the compliance of the ITU-8265.1 PTP profile for the TP5000 to the
ITU 8265.1 standard.
Table 4-5 shows the compliance of the Default (multicast) PTP profile for the
TP5000 to IEEE 1588-2008 Annex J.
Table 4-6 and
(unicast) and Hybrid (multicast-hybrid) PTP profiles, respectively.
Table 4-4. ITU-T G.8265-1 Profile Compliance
Attribute
clockClass
Domain
Table 4-5. Default Profile (Multicast) Compliance - IEEE1588-2008 Annex J
Attribute
clockClass
Announce Interval
Sync Interval
Domain
Table 4-6. Telecom-2008 (Unicast) Proprietary Profile
Attribute
clockClass
Domain
098-00028-000 Revision F – May, 2012
Table 4-7 show the attributes for the proprietary Telecom-2008
Default for Default for
ITU-T G.8265-1 TP 5000
Not defined Not defined
4
Default for Default for
Annex J TP 5000
n/a
1 1
0 -1
0 0
Default for TP
5000
Not defined
4
Table 4-8 and Table 4-9
Range for
ITU-T G.8265-1
80 to 110
4 4 to 23
Range for
Annex J
0 to +4
-1 to +1
Not defined
Range for TP 5000
6, 7, 13, 14, 2, 58, 248
0 to 255
TimeProvider 5000 User's Guide 293
Chapter 4 Provisioning
Provisioning PTP
for Symmetricom's
Range for
TP 5000
80 to 110
0 to 255
Range for
TP 5000
6, 7, 13, 14, 52, 58, 248
-4 to +4
-7 to +7
0 to 255