Unit installation

Appendix B SNMP Management Installation and Operation Manual
B-6 Handling of Management Traffic FCD-E1
Recommendations for Selection of IP Addresses
When the FCD-E1 SNMP agent and its management station are connected to the
same network, the network identifier part of the IP address assigned to the SNMP
agent must be identical to the network identifier part of the IP address of the
management station.
However, the agent and the FCD-E1 SNMP management station can also be on
different IP networks. In this case, each one will be assigned IP addresses
according to its IP network.
You can also specify a default gateway. The default gateway is the router to be
used by default for routing the management traffic to the management station
(located on a different IP network).
Automatic Routing of IP Traffic
The SNMP agent of the FCD-E1 units includes a proprietary IP router function,
that is used to route management messages automatically.
The proprietary IP router operates both on the in-band, as well as on the
out-of-band traffic, depending on the communication methods that have been
enabled.
The router of each SNMP agent collects information on the other SNMP agents
whose messages pass through by monitoring the IP source and destination
addresses of the IP messages, and combining this information with the information
on the direction to the management station. This automatic learning capability
enables using any network topology, including topologies with closed loops.
B.4 Handling of Management Traffic
Handling of Out-of-Band Communication
Out-of-band communication is performed via the management ports of the
FCD-E1 unit.
When using out-of-band communication through a port of a FCD-E1 unit, the IP
router must know which of the two serial ports (CONTROL DCE, located on the
front panel, and/or CONTROL DTE, located on the rear panel), are to be used for
management.
This information is provided during the configuration of the supervisory ports,
using the
DEF SP and DEF DP commands (for CONTROL DCE and CONTROL
DTE ports, respectively):
• A port that is connected to the network management station is defined as the
NMS port in the AUXILIARY DEVICE parameter.
• A port that is connected to a serial port of another equipment unit is defined
as an AGENT port.