Dell Force10 E300, Configuration Manual

Page: 1226 / 1262

1226 | S-Series Debugging and Diagnostics
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Auto Save on Crash or Rollover
Exception information on for master or standby units is stored in the flash:/TRACE_LOG_DIR directory.
This directory contains files that save trace information when there has been a task crash or timeout.
On a master unit, the TRACE_LOG_DIR files can be reached by FTP or by using the
show file
command
from the flash://TRACE_LOG_DIR directory.
On a Standby unit, the TRACE_LOG_DIR files can be reached only by using the
show file
command
from the flash://TRACE_LOG_DIR directory.
Hardware watchdog timer
The
hardware watchdog
command automatically reboots an FTOS switch/router when a unit is
unresponsive. This is a last resort mechanism intended to prevent a manual power cycle.
Buffer tuning
Buffer Tuning allows you to modify the way your switch allocates buffers from its available memory, and
helps prevent packet drops during a temporary burst of traffic.
The S-Series ASICs implement the key functions of queuing, feature lookups, and forwarding lookups in
hardware.
• Forwarding Processor (FP) ASICs provide Ethernet MAC functions, queueing and buffering, as well
as store feature and forwarding tables for hardware-based lookup and forwarding decisions. 1G and
10G interfaces use different FPs.
Table 62-1 describes the type and number of ASICs per platform.
You can tune buffers at three locations, as shown in Figure 62-6 .
Note: Non-management member units do not support this functionality.
Command Description
hardware watchdog
Enable the hardware watchdog mechanism.
Table 62-1. ASICS by Platform
Hardware FP CSF
S50N, S50V 2 0
S25V, S25P, S25N 1 0