Cabletron Systems Ethernet Hubs manual Mrxi Hubs, MiniMMAC Hubs, RCV Receive, Mgmt Management

Cabletron Hub LEDs

MRXI Hubs

MRXI Hubs

The MRXI supports LEDs that represent operating status, collision rates, error rates, packets transmitted and packets received for the entire hub as follows:

POWER

This LED indicates that the hub is receiving power.

LNK (Link)

This LED indicates that a link has been established between the module and the 10BASE-T device at the other end of the twisted pair segment. This LED remains lit as long as the link is maintained. The link LED flashes to indicate that the hub has established a link with reversed polarity.

RCV (Receive)

This LED indicates that the hub is receiving a data packet on that segment.

COLLISION

This LED indicates that a collision is occurring on a system level.

MGMT (Management)

When flashing, this LED indicates that the MRXI’s network management software is receiving a packet directed toward management.

FAULT

This LED indicates than an error has been detected by the MRXI’s software.

XMT (Transmit)

This LED indicates that the hub is transmitting packets to the segment connected to it.

MiniMMAC Hubs

The MiniMMAC supports LEDs that represent network activity and operating status, as follows:

PORT OK

This LED indicates that the corresponding port is not segmented from the network and is ready to transmit or receive packets from a segment attached to the port.

RECEIVE

This LED indicates that the MiniMMAC is receiving a data packet from the segment attached to the corresponding port.

POWER

This LED indicates that the MiniMMAC is receiving power.

Device Views	Cabletron Ethernet Hubs
2-22	Management Module Guide