292 TimeProvider 5000 User’s Guide 098-00028-000 Revision F – May, 2012
Chapter 4 Provisioning
Provisioning PTP
PTP Profiles
The TP5000 Grandmaster can be configured to run with one of four PTP profiles, as
described in Table 4-3. Each PTP port can run only one of these profiles at one
time. However, if the Ethernet ports are configured for independent operation, each
port can operate with a different profile. For example, ETH1 can run the
Telecom-2008 profile while ETH2 is configured to run the ITU-G.8265-1 profile.
The TP5000 requires a v1.2 license key to unlock the Default (multicast) and Hybrid
(multicast-hybrid) profiles. Use the
show license command to display the current license...
Table 4-4 shows the output state of the TP5000 main shelf relative to the clock state
and clockClass when using the Default (multicast) profile.
SSM Mapping to PTP Clock Class
The Default, Hybrid, and Telecom-2008 PTP profiles (Unicast, Multicast and
Multicast-hybrid address mode) for the TP5000 were implemented before the ITU
approved the PTP telecom profile in 2010.
Table 4-3. PTP Profiles for the TP 5000
PTP Profile
Mapping to Address Mode
(addr-mode in prev release)
Description
Default Multicast
Default profile in IEEE1588-2008 Annex
J, multicast over UDP/IP. See Table 4-5
Hybrid Multicast-hybrid
PTP transport over UDP/IP, mix of
unicast /multicast packets. See Table 4-7
Proprietary implementation.
Telecom-2008 Unicast
Generic unicast profile for telecom before
ITU-T G.8265-1. See Table 4-6
Proprietary implementation.
ITU G.8265-1 n/a
Telecom profile for frequency sync.
See Table 4-4for details about TP 5000
compliance to this profile.
See ITU-T G.8265.1 for details.
Note: The Ethernet expansion shelf supports the ethernet-default
profile. This is the profile defined in IEEE1588-2008 Annex F,
multicast over Ethernet.
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