User manual

Table Of Contents

ConnectX-2 Ethernet Card User Manual Rev 1.6

Mellanox Technologies

2.1.3 LED Assignment

The board has I/O LEDs located on the I/O panel. The green LED, when lit, indicates that the

driver is running and a valid physical connection between nodes exists. If the green LED is blink-

ing, it indicates a problem with the physical link. The yellow LED when lit, indicates a valid data

activity link, this is the logical link. The yellow LED lights up when the network is discovered

over the physical link. A valid data activity link without data transfer is designated by a constant

yellow LED indication. A valid data activity link with data transfer is designated by a blinking yel-

low LED indication. If the LEDs are not active, either the physical link or the logical link (or both)

connections have not been established.

Figure 4: LED - Port Association

Figure 5: Physical and Logical Link Indications

Port 1

Port 2

Table 5 - LEDs

Port Number LED Name

Port 1 Physical Link - Green

Constant on indicates a good physical link

Blinking indicates a problem with the Physical

link

Data Activity - Yellow

Blinking indicates Data Transfer

Constant on indicates no Data Transfer

Port 2 Physical Link - Green