Beta Draft Confidential
3-361/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring CBX or GX Logical Ports
Setting Logical Port Attributes
After configuring the ILMI and OAM attributes for this logical port, perform one of
the following tasks:
• If the logical port you are configuring supports optional ATM FCP functions,
continue with “ATM FCP Attributes” on page 3-49.
• If this is a UNI or PNNI 1.0 (NNI) logical port and you plan to use ATM SVCs in
your network, continue with “Configuring Logical Ports for Use With ATM
SVCs” on page 3-59. Otherwise, continue with “Completing the Logical Port
Configuration” on page 3-57.
• If this is a BICI 1.1 (NNI) logical port, proceed to “Completing the Logical Port
Configuration” on page 3-57.
DTE Prefix
Screen Mode
(DTE ports)
When a DTE port receives network prefixes from an external network,
you can perform various levels of screening on them against the list of
prefixes configured on the node and/or port. 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.
For more information about node and port prefixes, see Chapter 16,
“About SVCs.”
Note: Modifying the value of this attribute does not admin down the
logical port.
Circuit Alarm
Enable
Select Enabled (default) to allow this logical port to generate OAM
alarms. The switch uses these alarms to signal when the circuits have gone
down. Select Disabled to disable OAM alarms on this logical port.
Timer
Threshold
(sec):
(1-60 sec)
Before generating an OAM alarm, the switch waits until the circuit has
been down for the time period you specify in this field. 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.
Table 3-5. Add Logical Port: ILMI/OAM Tab Fields (Continued)
Field Action/Description
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