Cabletron Systems EMM-E6 Ethernet manual Lanview LEDs and Reset Switch, Lanviewsecure

LANVIEW LEDs AND RESET SWITCH

1.11LANVIEW LEDs AND RESET SWITCH

The EMM-E6 incorporates the Cabletron Systems LANVIEW Status Monitoring and Diagnostics System. LANVIEW LEDs can help diagnose any problems, such as a power failure or a cable fault. The module includes the following LANVIEW LEDs:

•A CPU (Central Processing Unit) LED, for board status

•STBY (Standby), RCV (Receive), XMT (Transmit), and CLN (Collision) LEDs for Ethernet Status

•Power LEDs for the two EPIM slots.

The front panel also has a reset switch which allows you to re-initialize the processor. Chapter 14, Troubleshooting, provides detailed descriptions of each EMM-E6 LANVIEW LED.

1.12LANVIEWSECURE

The EMM-E6 supports the LANVIEWSECURE suite of Ethernet MMAC modules. The LANVIEWSECURE products support both inbound data (Intruder Prevention) and outbound data (Eavesdrop Prevention). These products are identified by the words “LANVIEWSECURE” printed on the faceplate of the product.

Intruder prevention allows ports on the modules to be configured with expected MAC addresses. If a port receives a packet from a station or device whose MAC address does not correspond to the one previously associated with that port, the port will automatically lock, sensing the presence of an unauthorized station, then generate and send a trap to the Network Management station to indicate the intruder violation.

Eavesdrop prevention delivers a modified data portion (filled with a random pattern of binary ones and zeroes) to all ports on the module except the port specified in the original packet’s destination MAC address field. Effectively, all ports, except the destination port, recognize the presence of a packet, but receive meaningless information.

EMM-E6 User’s Guide 1-33