26 Dell PowerConnect 55xx Systems User Guide
FILE LOCATION:  C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell 
Contax\CxUGFeatures.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
SNMP Versions 1, 2, and 3
Simple Network Management Protocol (SNMP) over the UDP/IP protocol 
controls access to the system. A list of community entries is defined, each 
consisting of a community string and its access privileges. There are three 
levels of SNMP security: read-only, read-write, and super. Only a super user 
can access the Community table.
For more information, see "SNMP" on page 314. 
Web-Based Management
Web-based management enables managing the system from any web browser. 
The system contains an Embedded Web Server (EWS) that serves HTML 
pages, through which the system can be monitored and configured. The 
system internally converts web-based input into configuration commands, 
MIB variable settings, and other management-related settings.
Management IP Address Conflict Notification
This feature validates the uniqueness of the switch's IP address, whether it is 
assigned manually or through DHCP. If the IP address is not unique, the 
switch performs actions according to the address type. If the IP address is 
static, see more information about this in "IPv4 Interface Parameters" on 
page 210. If the IP address is dynamic, see more information about this 
in"DHCP IPv4 Interface" on page 214.
Flow Monitoring (sflow)
The switch supports statistics collection, using a sampling technology called 
sFlow that is based on RFC 3176. The sFlow sampling technology is 
embedded within the switch, and provides the ability to continuously 
monitor traffic flows on some or all the interfaces simultaneously.
For more information, see "sFlow" on page 376.
Configuration File Download and Upload
The device configuration is stored in a configuration file. The configuration 
file includes both system-wide and port-specific device configuration. The 
system can display configuration files as a collection of CLI commands that 
are stored and manipulated as text files.