Users Guide

In addition, Dell Networking requires that you install blanks in all empty slots to control airow for adequate system cooling.
Recognize an Under-Voltage Condition
If the system detects an under-voltage condition, it sends an alarm.
To recognize this condition, look for the following system message: %CHMGR-1-CARD_SHUTDOWN: Major alarm: Line
card 2 down - auto-shutdown due to under voltage.
This message indicates that the specied card is not receiving enough power. In response, the system rst shuts down Power over
Ethernet (PoE). If the under-voltage condition persists, member units are shut down, then the master unit.
Troubleshoot an Under-Voltage Condition
To troubleshoot an under-voltage condition, check that the correct number of power supplies are installed and their Status light
emitting diodes (LEDs) are lit.
The following table lists information for SNMP traps and OIDs on S-Series environmental monitoring hardware and hardware
components.
Table 99. SNMP Traps and OIDs
OID String OID Name Description
Receiving Power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.6 chSysPortXfpRecvPower OID displays the receiving power of the
connected optics.
Transmitting power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.8 chSysPortXfpTxPower OID displays the transmitting power of the
connected optics.
Temperature
.1.3.6.1.4.1.6027.3.10.1.2.5.1.7 chSysPortXfpRecvTemp OID displays the temperature of the
connected optics.
NOTE: These OIDs only generate if
you enable the enable optic-
info-update-interval is
enabled command.
Hardware MIB Buer Statistics
.1.3.6.1.4.1.6027.3.16.1.1.4 fpPacketBuerTable View the modular packet buers details
per stack unit and the mode of allocation.
.1.3.6.1.4.1.6027.3.16.1.1.5 fpStatsPerPortTable View the forwarding plane statistics
containing the packet buer usage per
port per stack unit.
.1.3.6.1.4.1.6027.3.16.1.1.6 fpStatsPerCOSTable View the forwarding plane statistics
containing the packet buer statistics per
COS per port.
Buer Tuning
Buer tuning allows you to modify the way your switch allocates buers from its available memory and helps prevent packet drops
during a temporary burst of trac.
The application-specic integrated circuit (ASICs) implement the key functions of queuing, feature lookups, and forwarding lookups
in hardware.
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S5000 Debugging and Diagnostics