3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual page 168

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ATH UILDER ODULES
3 Select [2] LMI Configuration to display the LMI Configuration menu for the
selected port. This menu displays the LMI configuration and provides options that
allow you to change certain parameters. Figure 129 shows the QSIM LMI
Configuration menu. The HSIM and FAM LMI Configuration menus are similar.
Figure 129 QSIM LMI Configuration Menu
LMI configuration relates to the periodic polling that is performed between pairs
of Frame Relay devices to determine the status of PVC connections and to verify
the link integrity. This polling is done through a procedure known as Status
Enquiry. Two types are polling are performed: full status (FS) and link integrity
verification (LIV). Full status polling also includes link integrity verification.
4 Change the following parameters, as desired:
Protocol—The protocol specified for the Status Enquiry procedure: none, q.933a,
or t1.617d.
Procedure—Specifies whether the PathBuilder S600 will be designated as the
user-side, the network-side, or bidirectional in the period polling performed
between frame relay devices.
User LIV Polling Timer (T391)—The time interval (in seconds) at which Status
Enquiry occurs for link integrity verification (LIV) polling: 5..180. This parameter
applies only when the PathBuilder S600 is designated as the user side unit.
Set this parameter at a higher value than the Network PV Timer parameter on the
network side unit.
Network PV Timer (T392)—Network Polling Verification Timer. When the unit is
configured as the network side unit, the user-side unit sends the Status Enquiry
request. The Network Polling Verification acts on the user initiated-request and
checks whether or not it has any new information to report, based on the
specified timer.
User FS Polling Counter (N391)—The time interval (in seconds) at which Status
Enquiry occurs for full status (FS) polling: 1..255.
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ORTS AND PPLICATIONS