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TimeProvider 2300/2700 User’s Guide
098-00564-000 Revision A3 – July, 2013
Chapter 1 Overview
Physical Description
Each of the service ports only allows PTP, ICMP, and IGMP. The MGMT port allows
user-configuration of the firewall, which includes ICMP, FTP, SSH, telnet,
HTTPS/HTTP and SNMP.
The ETH1 and ETH2 service ports do not support routing protocols between the
ports. This prevents a malicious attack on the ETH1 port (network 1) to be used to
send a malicious attack via the ETH2 port (network 2) or vice-versa.
The ETH1 and ETH2 service ports also include a hardware traffic limiter. If the
number of packets per second exceeds the limit, the unit will generate an alarm
indicating excessive traffic is being seen. This could be an indication of a malicious
attack or it could also be a large number of clients requesting service from the
server. The system will drop packets received in excess of the limit. Packets
received below the limit will be handled normally.
If the ETH1 and ETH2 service ports do come under attack, only the ports under
attack will be affected due to the system's architecture. The MGMT port will
continue to provide all management facilities for the system during this type of
attack. To minimize system resource usage and deter denial of service attacks, the
system is configured to allow a maximum ICMP ping request rate of 16 per second.
Conclusions
The TP 2300/2700's architecture isolates functional areas such as user
interfaces and output signal generation to minimize the possible corruption of
time and frequency outputs.
Only service-specific UDP protocols are enabled.
From a system security perspective the TP 2300/2700 provides the highest level
of security while providing very accurate time and frequency outputs. However, it
also requires that the user implement best-practice security safeguards in their
networks for the most robust levels of security.
Physical Description
The TimeProvider 2300/2700 consists of a 19-inch (48 cm) rack mount chassis,
plug-in modules, and hardware
.
Note:
The TP 2300/2700 comes equipped with 19-inch rack
mounting brackets. 23-inch (58.42 cm) rack mounting adapters are
also available as a separately ordered item. 21-inch (ETSI) rack
mounting adapters are available as a separately ordered item.