Software Versions - Symmetricom SSU-2000e User Manual

Chapter 1 Product Overview
Communications Protocol
NTP – Network Time Protocol
The Network Time Protocol (NTP) is used to synchronize the time of a computer
client or server to another server or reference time source, such as a GPS receiver
or local timing source.
The SSU-2000e implements the NTP v.3 (RFC 1305) version. It can run as a server
application and a client application. In addition, a broadcast mode may be
implemented as either a server or client. The NTP server always runs and the client
and broadcast modes are enabled independently by assignment of addresses and
setting of timers. Refer to the SSU-2000e Technical Reference for more information.
SNMP – Simple Network Management Protocol
The SSU-2000e offers two versions of SNMP: v2 and v3. SNMP v3 software offers
additional security with authentication and privacy parameters. The security feature
allows secure transactions to provide protection against modification of information,
masquerade, and message stream modification.
Simple Network Management Protocol (SNMP) is based on a client-server
query-response mode. A manager is the client generating the queries, while an
agent is the server generating the responses.
The SSU-2000e SNMP is an SNMP agent that requires Ethernet connectivity. If
SNMP is present, port 161 becomes the port of standard SNMP interactive
communications, while port 162 becomes the trap port. Since the SSU-2000e
SNMP supports all existing functions, full system control of the SSU-2000e is
maintained through SNMP.
The SSU-2000e implements an SNMP agent. A Management Information Base
(MIB) browser or the SNMP Manager is used to access, retrieve, and query
information defined by the MIB.
All reports, queries, autonomous messages, control, provisioning, and
administration (except for communication port parameters, Set User ID/Password,
Set IP assignments, Reset connection, and SNMP community settings) are
available through SNMP. Refer to the SSU-2000e Technical Reference for more
information.

Software Versions

There are six different versions of software available for the SSU-2000e, as shown
in Table 1-7. The functionality and commands that are available vary from one
version of software version to the next, depending on the specific features of the
software package; see the SSU-2000e Technical Reference for more information.
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