
Editing SMDS Parameters
114069 Rev. A 4-7
Parameter: Heartbeat Poll Down Count
Default: 3 messages
Range: 1 to 1023 messages
Function: Specifies the number of heartbeat poll messages that the router will send
without acknowledgment from the DSU before it declares the router/DSU
connection down. If you disable heartbeat polling, this parameter is
nonfunctional.
Instructions: Set to the number of unacknowledged heartbeat poll messages that the
router will tolerate before taking the router/DSU connection down. We
recommend that you accept the default.
MIB Object ID: 1.3.6.1.4.1.18.3.5.9.3.1.10
Parameter: LMI Network Mgmt
Default: Disable
Options: Enable
| Disable
Function: Enables or disables LMI network management.
LMI works with DXI Version 3.2. LMI is an SNMP-like protocol that
enables the router and the DSU/CSU to exchange management
information.
Instructions: Set to Enable to use the LMI protocol. Accept the default, Disable, if the
DSU/CSU in your network does not support the LMI.
Accept the default if you have an ADC Kentrox dual-port DataSMART
T1 SMDSU. This DSU does not support the LMI protocol. Instead, rely
on heartbeat polling to determine whether the interface between the router
and the DSU is active. Use the SMDS in-band SNMP agent to manage the
DSU.
If you have a single-port DataSMART T1 SMDSU, accept the default or
upgrade the DSU software to revision 1.41, which supports LMI.
MIB Object ID: 1.3.6.1.4.1.18.3.5.9.3.1.11
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