Top Command; Tftp Server Requirements; System Health Check-Modular Switches Only; Overview Of The System Health Checker - Extreme Networks ExtremeWare XOS Guide Manual

TOP Command

The command is a UNIX-based command that displays real-time CPU utilization information by
top
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
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—Modular Switches Only
This section provides a brief overview the system health check functionality of the following switches:
BlackDiamond 10K
●
BlackDiamond 8800 family of switches (formerly known as Aspen)
●
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 8, "Status Monitoring and

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.
Backplane diagnostic packets are disabled by default. Once this feature is enabled, the system health
●
checker tests the packet path for a specific I/O module every 6 seconds by default. The Management
Switch Fabric Module (MSM) sends and receives diagnostic packets from the I/O module to
determine the state and connectivity. (The other I/O modules with backplane diagnostic packets
disabled continue polling every 60 seconds by default.)
BlackDiamond 8800 Family of Switches
Polling is always enabled on the system and occurs every 5 seconds by default. The polling value is
●
not a user-configured parameter. The system health check polls the control plane health between
ExtremeWare XOS 11.3 Concepts Guide
Statistics."
TOP Command
command, please refer to
top
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