9300 & 9200 Series - NTPv4

What it Means to You:

• Peering supports redundant and resilient network time synchronization
• Stratum 2 network appliance reduces cost of ownership and increases efficiency
• Autonomous authentication (Autokey) and MD5 authentication improve security
• Network management: browser, NTP status statistics display, enterprise SNMP MIB

How Does it Work?

• Stratum 0: GPS satellites or ACTS/ITU-R servers perform as Stratum 0 references
• Stratum 1: NetClock locked to GPS or ACTS/ITU-R Modem operates as a Stratum 1 server
• Stratum 2: NetClock or Ethernet Time Server as a client, requesting updates via Unicast from the Stratum 1 server
• Stratum 3: Servers, such as a domain controller, perform as clients to the Stratum 2 server (Unicast)
• Stratum 4: Workstations or servers, such as at the department level, perform as clients to the Stratum 3 server (this can be Unicast but is often Broadcast) …Up to Stratum 15

Introduction

Spectracom’s NetClock® products have supported NTPv2 and NTPv3 for years per RFC 1305, the Network Time Protocol Specification, Implementation and Analysis. The 9300 & 9200 Series NetClock also support NTPv4 in order to provide a standard method of synchronizing network devices.