Configuring Port Khi - Avaya 8800 Troubleshooting Manual

Configuring Port KHI

Port KHI tracks the following information:
• Overall system statistics (unicast, multicast and broadcast Rx, Tx packets) for the
preceding 2 minutes
• Port Up/Down Events
• SMLT Port Up/Down Events
• IST Port Up/Down Events
• Port Errors
It also provides a history of the last 10 Port KHI events.
The Current Up/Down ports list is collected when the show command is executed. The system
statistics under Port KHI are collected every 2 minutes and indicate the total packets (Unicast/
Multicast/Broadcast) received/transmitted within the previous 2 minutes. When a clear
operation is performed, the operationally UP ports are stored as a reference, and the current
status for Port KHI is marked as Yellow if any of those ports go down.
The first time a particular port error occurs, it is reported as a KHI Warning message and also
logged under the Port KHI historical data. All subsequent port errors of the same type and on
the same port are not reported until a clear operation is performed.
To ensure the validity of the KHI information, ensure that it is in sync with the output from the
port show commands, and verify that the timestamps are relevant. There may be a slight delay
in the KHI output if shown concurrently with port show commands, as KHI polls line cards
consecutively, which can introduce a delay in the output for the first cards polled.
While the memory used for Port KHI is minimal, collecting system statistics when a system is
busy can have a system impact.
Avaya recommends to enable Port KHI when a system has stabilized.
The clear command allows you to establish a reference list of UP Ports and to establish the
last clear timestamps. It also clears any existing port error information.
To provide a useful reference point for the UP Ports list, use the clear command when the
network is stable.
To configure Port KHI, use the following procedure.
Troubleshooting
Collecting Key Health Indicator (KHI) information
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