Paradyne ACCULINK 316x User Manual Page 184

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ACCULINK 316x DSU/CSU
E-4 December 1996 3160-A2-GB22-10
Interface Group, MIB II
The interfaces group consists of an object indicating
the number of interfaces supported by the unit and an
interface table containing an entry for each interface. The
T1 DSU/CSU provides an entry in the interface table for
the Network T1 interface, the DTE Drop/Insert T1
interface, each of the synchronous DCE data ports (1, 2,
or 4 depending on the model), the COM port, and the
MODEM port. The following sections provide
clarification for objects contained in the Interface Group
where it is not clear how the object definition in MIB II is
related to the DSU/CSU.
Interface Group – “ifDescr”
Object (ifEntry 2)
This object provides the textual information about the
interface. Set each interface to a text string as specified
below:
Network T1: “Network T1. AT&T Paradyne T1
DSU/CSU, Hardware Version:
[CCA number for the CSU
board]”.
DTE T1: “DTE T1. AT&T Paradyne T1
DSU/CSU, Hardware Version:
[CCA number for the CSU
board]”.
COM:
“COM port. A
T&T Paradyne T1
DSU/CSU, Hardware Version:
[CCA number for the CSU
board]”.
Modem: “MODEM port. AT&T Paradyne
T1 DSU/CSU, Hardware Version:
[CCA number for the CSU
board]”.
Data Ports: “Data Port n. AT&T Paradyne T1
DSU/CSU, Hardware Version:
[CCA number for the DSU
board]”. (where n is between 1 and
4).
Interface Group – “ifType” Object (ifEntry 3)
This object identifies the type of the interface based on
the physical/link protocol(s) immediately below the
network layer. Only the following values are supported by
the DSU/CSU:
t1-carrier(18) – Used for the Network and DTE
Drop/Insert T1 interfaces.
propPointToPointSerial(22) – Used for the
synchronous DCE data ports. Used for the
MODEM or COM port when the port is not
configured as the SNMP management interface.
ppp(23) – Used for the MODEM or COM port
when the port is configured for PPP.
slip(28) – Used for the MODEM or COM port
when the port is configured for SLIP.
Interface Group – “ifMtu” Object (ifEntry 4)
This object identifies the lar
gest datagram that can be
sent/received on the interface. It is applicable only to the
interface configured as the SNMP management link. This
object is zero for all other interfaces.
Interface Group – “ifSpeed”
Object (ifEntry 5)
This object provides the interface’s current bandwidth
in bits per second. The value of this object for each
interface is specified as follows:
T1 Interfaces:
1,544,000 bps.
COM and
Modem:
The currently configured data rate
for the port.
Data Ports: The currently configured data rate
for the port when the port is
allocated to one of the T1
interfaces. If the port is not
allocated the data rate is defined as
zero.
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