Beta Draft Confidential
Configuring ATM Logical Ports on Frame-based Modules
Defining ATM UNI DCE/DTE Logical Ports
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/054-27
VPI Id (0-15)
VCI Id (0-255)
Enter the ID of the VPI or VCI you want to use for ILMI polling.
The default values are:
• zero (0) for VPI
• 16 for VCI
• zero (0) for VPI (direct LPorts)
• VCC VPI Start for VPI (virtual LPorts)
These fields are read-only for virtual logical ports.
Loss Threshold
(K)
Specify 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 is 4.
Note: Changing the value for this attribute does not admin down the
logical port.
Polling Period
(sec)
Specify the polling period (T) for an ILMI poll. The switch generates
an ILMI poll every (T) seconds. The default is 5 seconds.
DTE Prefix
Screen Mode
Specifies the type of screening you can perform against the list of
prefixes configured on the node and/or port, when a DTE port receives
network prefixes from an external network.
Select one of the following options:
Accept All (default) – No screening occurs; accepts all prefixes.
Node Prefix – Accepts only network prefixes that partially or fully
match a configured node prefix.
Port Prefix – Accepts only network prefixes that partially or fully
match a configured port prefix.
Node or Port Prefix – Accepts only network prefixes that partially or
fully match either a configured node prefix or a configured port prefix.
Reject All – Rejects all network prefixes received from an external
network.
Circuit Alarm
Enable
Set the circuit alarm status.
Select the check box (default) to enable this logical port to generate
OAM alarms. The switch uses these alarms to signal when the circuits
have gone down or come back up.
Clear the check box to disable OAM alarms on this logical port.
Timer Threshold
(sec): (1-9 sec)
Set the alarm timer threshold (in seconds). The switch waits until the
circuit has been down for the time period you specify in this field
before generating an OAM alarm. The default is 5 seconds.
Table 4-10. Add Logical Port: ILMI/OAM Tab Fields (Continued)
Field Action/Description
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