Administrator Guide

62 Switch Feature Overview
For information about Auto Install, see "DHCP and USB Auto-
Configuration " on page 499.
sFlow
sFlow is the standard for monitoring high-speed switched and routed
networks. sFlow technology is built into network equipment and gives
complete visibility into network activity, enabling effective management and
control of network resources. The Dell Networking N-Series switches support
sFlow version 5.
For information about configuring managing sFlow settings, see "Monitoring
Switch Traffic " on page 519.
SNMP Alarms and Trap Logs
The system logs events with severity codes and timestamps. The events are
sent as SNMP traps to a trap recipient list.
For information about configuring SNMP traps and alarms, see "SNMP " on
page 433.
NOTE: Automatic migration of the startup configuration to the next version of
firmware from the current and previous versions of firmware is supported; the
syntax is automatically updated when it is read into the running-config. Check
the release notes to determine if any parts of the configuration cannot be
migrated. Save the running-config to maintain the updated syntax. Migration of
configuration is not assured on a firmware downgrade. When upgrading or
downgrading firmware, check the configuration to ensure that it implements the
desired configuration. Meta-configuration data (stack-port and slot
configuration) is always reset to the defaults on a downgrade on each stack unit.
As an example, Ethernet ports configured as stacking ports default back to
Ethernet mode on a downgrade.
Migration of configuration information is never assured when errors are shown
while the system is booting. Although the errored lines are displayed, commands
that enter a sub-configuration mode followed by an exit command cause the CLI
to exit Global Configuration mode, and subsequent configuration commands are
ignored. Always hand-edit the startup-config if errors are shown on the screen
during bootup.