PKT-INT (Packet Interface)
Issue 4 May 2002
10-1293555-233-123
Administration
There are no add or remove commands for the Packet Interfaces. Instead, the
System Parameters Maintenance Form (p. 2) provides Packet Interface fields
(Packet Intf1 and Packet Intf2) to indicate the presence of Packet
Interfaces.
In systems with TN2401/TN794 NetPkt circuit packs, Packet Interfaces are
always present. The system sets the corresponding Packet Interface fields to “y”
when it boots, and allows no change to those fields.
Packet Interface Replacement
To replace a Packet Interface, follow the procedure to replace the TN2401/TN794
NetPkt circuit pack in the SPE carrier. Power down the SPE carrier before
removing the NetPkt circuit pack. Then power back up the SPE carrier after
inserting the NetPkt circuit pack.
Demand Reset of a Packet Interface
System software denies a demand reset of a Packet Interface on an active SPE
(reset packet-interface) if the Packet Interface is in service. A reset would disrupt
service, existing calls, and links to adjuncts such as AUDIX. The software that
controls Packet Interface maintenance puts a Packet Interface in the
out-of-service state if that Packet Interface has been reset four times within the
last 15 minutes, as part of the automatic recovery action that is initiated when a
hardware fatal fault condition is detected.
A demand reset of a Packet Interface on the standby SPE is not disruptive and is
allowed regardless of the service state of the associated maintenance software.
When a standby Packet Interface is reset, the following actions take place:
■ Memory shadowing is turned off.
■ The standby SPE is booted into Maintenance Mode. Both standby Packet
Interfaces are reset automatically during this process.
■ The Packet Interface reset action is performed by the Standby SPE.
■ The Standby SPE is put back into Standby Mode.
■ A standby SPE memory refresh is performed.
It takes approximately one minute after a Packet Interface on the standby SPE is
reset before memory refresh of the standby SPE is complete. During that time,
any demand tests of the standby Packet Interface abort.
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