Unit installation

Installation and Operation Manual Appendix B SNMP Management
FCD-E1 Handling of Management Traffic B-7
A serial port can be configured for management access only when its interface is
configured as DCE.
Typically, the CONTROL DCE port is used for out-of-band communication, and
the CONTROL DTE port is used as a dial-out port.
Out-of-band management uses a RAD proprietary protocol for management traffic
handling. The user can also enable the transmission of RIP2 routing tables through
each port, thereby enabling the transfer of management traffic through routers
using the RIP2 protocol.
Handling of Inband Communication
When using inband communication, the IP router can receive the management
traffic through either, or both the main and sublinks. Different protocols and
routing methods can be configured for each link.
Inband Communication Ports and Protocols
When using inband communication, the user can select the link bandwidth
allocated to management and the transmission and routing management protocols:
• Management traffic carried within the E1 frame overhead. This
communication mode uses the RAD proprietary protocol, which requires a
small fraction of the link 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. This communication mode
supports the following protocols:
 RAD proprietary protocol
 Frame relay encapsulation in accordance with RFC 1490
 RIP2 protocol.
When a dedicated timeslot is used, the data rate is selectable (8, 16, 32, or
64 kbps), but the sublink supports only 8 kbps.
Inband Management Traffic Routing
The IP router function uses the RAD proprietary routing protocol whenever it
operates in a network environment consisting of RAD products.
In addition, the IP router can be configured by the user to use frame relay and
RIP2, when connecting directly to a router.
• The RAD proprietary routing protocol is used with the timeslot 0 and the
dedicated timeslot option.
• The RIP2 protocol is available with a dedicated timeslot or frame relay options.
 When the IP router function is configured to use the RAD proprietary
protocol, it collects information on the other SNMP agents by exchanging
routing information (including the contents of each router's routing table),
with its neighbors. This automatic learning capability enables using any
network topology, including topologies with closed loops.
Not
e