Nortel Networks OPTera Metro 3500 - Manual (Page 208)

2-170 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 2-62
Time of day synchronization (SPs are under the NP’s span of control)
EX1407
The maximum number of provisionable servers on the network processor is
five. The NTP client automatically queries servers and synchronizes to the best
clock by considering the stratum value of the servers and the dispersion
(latency). The maximum number of network processors that can be
provisioned as the timing sources on a shelf processor is two. If more than one
external timing server is provisioned, the system reverts to the backup network
processor in the event the primary server is not reachable or servicing time of
day requests.
For procedures on provisioning time of day synchronization parameters using
Site Manager, see Security and Administration, 323-1059-302.
NP
NTP Server
SP SP
SP