HP proliant bl e-class Manual De Usuario

Each switch module can be configured and monitored remotely from a Simple Network 
Management Protocol (SNMP)/Remote Monitoring (RMON) based Network Management 
Station. The switch modules support industry-standard SNMP Management Information 
Bases (MIBs), HP Switch MIBs, and RMON groups 1 (statistics), 2 (History), 3 (Alarm), and 
9 (Event) for fault detection, configuration, and monitoring of switch functionality. In 
addition, the interconnect switch supports various environmental traps such as temperature 
and fan failure traps. 

To secure the management interface, the switch administrator can configure community 
strings with two levels of access. Access can be restricted to a limited number of 
Management Stations by configuring a list of IP addresses of those stations that can access 
the interconnect switch. Refer to Appendix E for more information. 

The interconnect switch allows the user to mirror a port to another port for network 
monitoring and troubleshooting purposes. This technology offers a way for network packet 
analyzers to view the traffic moving through the switch modules by providing a copy of the 
traffic that is currently being passed through any other port. The packets are normally sent to 
a network packet analyzer or other monitoring device attached to the mirror port. 

The interconnect switch port trunking feature allows several ports to be grouped together and 
act as a single logical link called a trunk. This feature provides a bandwidth that is a multiple 
of a single link’s bandwidth. It also improves reliability since a configurable type of load 
balancing is automatically applied to the ports in the trunked group. A link failure within the 
group causes the network traffic to be directed to the remaining links in the group. 

The Trivial File Transfer Protocol (TFTP) service feature allows the interconnect switch 
firmware to be upgraded by downloading

 

a new firmware file from a TFTP server to the 

switch modules. A configuration file can also be loaded into a switch module from a TFTP 
server, configuration settings can be saved to the TFTP server, and a history log can be 
uploaded from the switch module to the TFTP server. 

The interconnect switch provides a store and forward switching scheme that allows each 
packet to be buffered (stored) before it is forwarded to its destination. While this method 
creates latency, it improves reliability in a heavily used interconnect switch. Packets that 
cannot be forwarded are saved immediately, rather than dropped, and packets behind it are 
less likely to be dropped in periods of heavy usage.