Dell PowerConnect 5548 User Guide - Page 25

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 307. 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 203. If the IP address is dynamic, see more information about this in"DHCP IPv4 Interface" on page 207. 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 369. 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. Dell PowerConnect 55xx Systems User Guide 25