Symmetricom Time Server Serial or Telnet Configuration, Symmetricom Snmp Enterprise MIB

Appendix D: SNMP – Simple Network Management Protocol Serial or Telnet Configuration

SNMP Global Enable Traps

Yes

The factory default settings are summarized as follows: community one is called public and is set to read-only access for the SNMP MIB; community two is named system and it has normal access to the SNMP database; all other communities are disabled. All traps are disabled. Many SNMP management utilities are written with these default assumptions and thus the Symmetricom SNMP is immediately usable without configuration.

D.3 Serial or Telnet Configuration

Use Serial or Telnet Function F100 CONFIG to obtain information about the current SNMP/NTP configuration, or to change the IP addresses, traps, read/write access, or community names and parameters. For details, see “Configuration of SNMP Parameters Using FTP” on page 4-72.Although this option is available, it is much faster and easier to configure SNMP parameters over the Internet. For details, see “Remote SNMP Configuration” on page 3-38.

D.4 Symmetricom SNMP Enterprise MIB

Introduction

A Management Information Base (MIB) is a database of managed objects that have a hierarchical structure. There are common or vendor-specific managed objects. The Internet community has over 1,000 objects registered. The objects themselves are representations of real physical network properties or information.

Using a TCP/IP network and Symmetricom's SNMP Enterprise MIB, you can remotely obtain information on the health and status of the NTP application and the primary time synchronization source using the SNMP version 1 protocol. The Enterprise MIB database has five variable groups: the Trap Message Group, the Network Time Protocol Group, the Network Time Server Control Group, the GPS Group, and the ACTS Group. Presently, the control group is preliminary and is not implemented in the current version of software.

Traps are sent on Change of Status (COS). There are three types of traps: NTP Status, GPS Status, and GPS Antenna Status. All of them report failures, as well as the return to active status. The settings are as follows:

•	NTP Status:	NTP Client Mode*
		NTP Unlocked
		NTP Locked
•	GPS Status:	GPS Locked
		GPS Unlocked

•GPS Antenna Status: GPS Antenna Fault GPS Antenna OK

*In NTP Client Mode, NTP is using another NTP server as its timing reference, instead of GPS.

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