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Configuring ATM Over MPLS Trunks
Configuring Feeder Logical Ports
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/058-31
For ATMoMPLS UNI/NNI feeder logical ports, you can configure the fields in the
ILMI/OAM tab as described in Table 8-8.
Table 8-8. Add Logical Port: ILMI/OAM Tab
Field Action/Description
Enable Select the check box to reserve a percentage of bandwidth in
the VBR-NRT QoS class for ILMI.
Clear the check box (default) to disable ILMI and not have
reserve bandwidth. If the attached device cannot run ILMI,
leave ILMI disabled.
Note: To use line loopback diagnostics, you must disable ILMI
support.
VPI Id (0-15)
Enter the ID of the VPI you want to use for ILMI polling.
The default value is zero (0).
VCI Id (0-1023)
Enter the ID of the VCI you want to used for ILMI polling.
The default value is 16.
Loss Threshold (K) Enter a value for the number of times (K) the logical port will
issue an ILMI poll before the link is considered down. If no
responses are seen in K x T seconds, the link is considered
down. The default value is 4.
Polling Period (sec) Enter the interval for the polling period (T). The switch
generates an ILMI poll every T seconds.
The default is 5 seconds.
Forward: Select
Reverse: Select
Accesses the ILMI Forward/Reverse Traffic Descriptor dialog
box. This option enables you to modify the traffic
characteristics for the control channel. This feature is known as
configurable control channel. See “Traffic Descriptor
Attributes” on page 3-41 to complete the fields on this dialog
box.
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