Extreme Networks ExtremeWare XOS 11.1, Руководство пользователя

Страница: 446 / 496

Troubleshooting
ExtremeWare XOS 11.1 Concepts Guide
446
Where the following is true:
●
memorycard
—Specifies the removable external compact flash card
●
file-name
—Specifies the name of the configuration or policy file to delete
When you delete a configuration or policy file from the system, make sure you specify the appropriate
file extension. For example, if you want to delete a policy file, specify the filename and
.pol . After you
delete a file, it is unavailable to the system.
TOP Command
The
top
command is a UNIX-based command that displays real-time CPU utilization information by
process. The output contains a list of the most CPU-intensive tasks and can be sorted by CPU usage,
memory usage, and run time. For more detailed information about the
top
command, please refer to
your UNIX documentation.
TFTP Server Requirements
Extreme Networks recommends using a TFTP server that supports blocksize negotiation (as described
in RFC 2348,
TFTP Blocksize Option ), to enable faster file downloads and larger file downloads.
System Health Check
This section provides a brief overview the system health check functionality of the following switches:
●
BlackDiamond 10K
●
Aspen 8810
For all switches, system health check errors are reported to the syslog. If you see an error, please contact
Extreme Networks Technical Support.
For more detailed information about the system health checker, including a configuration example, see
Chapter 7 , “ Status Monitoring and Statistics .”
Overview of the System Health Checker
There are two modes of health checking available on the switch: polling and backplane diagnostic
packets. These methods are briefly described for each platform.
BlackDiamond 10K Switch
●
Polling is always enabled on the system and occurs every 60 seconds by default. The system health
checker polls and tracks the ASIC counters that collect correctable and uncorrectable packet memory
errors, check sum errors, and parity errors on a per ASIC basis. By reading and processing the
registers, the system health check detects and associates faults to specific system ASICs.