Specifications

3.3 Port Switches
Network Modules 3–27
3.3 Port Switches
PORTswitch modules are high-density Ethernet modules that support configuration
switching on a port group or per-port basis. Per-port configuration switching
provides the flexibility to logically group any individual or combination of
externally accessible ports to any of six internal LAN segments.
Additionally, using clearVISN management software, any of these six internal
Ethernet segments can then be software switched, to specific Ethernet segments on
the backplane of the DEChub 900 MultiSwitch. When installed in a DEChub ONE
or DEChub ONE-MX the PORTswitch can be configured as a single multisegment
standalone product.
Portswitch characteristics are as follows:
• Port switching capability to link a port, or pair of ports, or group of ports to a
different LAN segment, as well as the functionality to change those connec-
tions under SNMP management control.
• Support for several cable types including twisted-pair (both unshielded and
shielded), ThinWire coaxial cable and fiber optic cable. This provides con-
nection to devices that support IEEE 802.3 (i.e., 10Base2, 10BaseT,
10BaseFL/FOIRL).
• Full repeater functionality at the port level.
• Ability to identify malfunctioning ports and automatically segment or
restore them to avoid network disruption.
• Provision of per-port statistics, such as total collision per module or number
of readable frames per port.
• Secure Ethernet capability that prevents data packets generated by unknown
or unauthorized end stations from accessing the network. Authorized station
addresses can be set under SNMP management control.
• Eavesdrop protection that is provided by sending data packets to the port of
the destination address. All other ports receive scrambled data.
• Intrusion protection, logs violations or disables the port.
• Integral SNMP agent.
• Hot swap capability.
• Front panel LEDs for power, network activity, and port status.
• In-band and out-of-band management capabilities