Technical Manual
GE Reason H49
132
H49/EN M/C22
100 Base-FX
The fiber optic ports are full duplex at 100 Mbps only.
NTP
Network Time Protocol.
PHY
The OSI physical layer:
The physical layer provides for transmission of cells over a physical medium.
Power management
If there is no cable on a port, most of the circuitry for that port is disabled to save power.
PRP
Parallel redundancy protocol.
The redundancy protocol implement redundancy in the nodes rather than in the network,
using doubly attached nodes obeying too PRP (DANPs).
Achieving bumpless Ethernet connectivity using redundancy in accordance with IEC 62439-
3 (2016) Clause 4.
PTP
Precision Time Protocol.
Achieving highly accurate time synchronization over Ethernet in accordance with IEEE
1588/IEC 61588 (2009).
QuadBox
Quadruple port device connecting two peer HSR rings, which behave as an HSR node in
each ring and is able to filter the traffic and forward it from ring to ring.
RedBox
Redundant Ethernet box. A device-attaching single attached nodes to a redundant network.
RCT
Redundancy check trailer.
RMON
Remote monitoring.
A network management protocol that allows network information to be gathered at a single
workstation.
Whereas SNMP gathers network data from a single type of Management Information Base
(MIB), RMON 1 defines nine additional MIBs that provide a much richer set of data about
network usage.
For RMON to work, network devices, such as hubs and switches, must be designed to
support it.
The newest version of RMON, RMON 2, provides data about traffic at the network layer in
addition to the physical layer.
This allows administrators to analyze traffic by protocol.
SSH
Secured Shell. A secured encrypted network protocol for remote administration of
computers.
SSL
Secured Socket Layer
SNMP
Simple Network Management Protocol is the protocol governing network management and
the monitoring of network devices and their functions.
SNTP
Simple Network Time Protocol.
Switching logic
Hardware that transmits a frame from one port to another port, possibly providing cut
through.
TLS
Transport Layer Security framework provides encryption capabilities over a communication
VDAN
Virtual doubly attached node (SAN as visible through a RedBox).
VLAN
A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer
network at the data link layer (OSI layer 2). LAN is an abbreviation of local area network. To
subdivide a network into virtual LANs, one configures a network switch or router
SRP
Switch Redundant Protocol
Summary of Contents for Reason H49
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