Specifications

Installation and Operation Manual Appendix B SNMP Management
FCD-E1LC Ver. 1.0 Handling the Management Traffic B-5
To select the management mode, use the DEF SP command. Configure the
AUXILIARY_DEVICE parameter as follows:
• TERMINAL – when only the ASCII supervision terminal must be supported.
• SLIP-AGENT – when the supervisory port must support the SLIP protocol, and
is connected to the management station through another serial port that
supports SLIP (for example, the CONTROL DTE port of a
Megaplex-2100/2104).
In the SLIP-AGENT mode, the FCD-E1LC management traffic router generates
and accepts routing (RIP) requests and updates, and therefore it can
determine whether to send or not management traffic through the serial
port.
• NMS-SLIP – when the supervisory port must support the SLIP protocol, for
example SNMP or Telnet management, and is connected directly to the SNMP
management station or Telnet host.
The FCD-E1LC management traffic router will not accept routing information
messages when the port is configured as NMS-SLIP port.
• NMS-PPP – when the supervisory port must support the PPP protocol, for
example SNMP or Telnet management.
Configuring the Inband Communication Mode
Inband communication is supported through the main link.
For an FCD-E1LC equipped with a sublink, inband management is also possible
through this link.
Although the FCD-E1LC can accept and transfer management traffic toward the
sublink, this capability is provided only for enabling the management of the
equipment unit directly connected to the sublink through the FCD-E1LC main link,
or through the FCD-E1LC serial port. Therefore, the FCD-E1LC is not intended to
handle heavy management traffic (as needed to manage a network of managed
devices) toward the sublink.
Inband Communication Ports and Protocols
When using inband communication, you can select between the following
transmission protocols:
• Management traffic carried within the E1 frame overhead. This
communication mode uses the RAD proprietary protocol, which requires a
small bandwidth: the management traffic is carried by means of the national
bits, S
a4
through S
a8
, in timeslot 0 (each bit can carry a data rate of 4 kbps).
• Management traffic carried in a dedicated timeslot. In addition to the RAD
proprietary protocol, this communication mode supports Frame Relay
encapsulation in accordance with RFC 1490.
When a dedicated timeslot is used, the management data rate is 64 kbps.
Note