Troubleshooting guide

1. Plug in the power cord of the switch and the color TFT display (driven by the

monitoring line card) will illuminate and exhibit a color-bar display. After the

operating system finishes to boot (about 10 seconds), the color-bar display

will change to a virtual image of the switch. Do not yet connect ethernet to

the monitoring line card (in the left-most slot of the switch chassis).

Configuration of the monitoring line card will be performed after all of the

fiber cables have been connected.

2. Verify that all of the switch line cards are properly seated. If a switch line

card is properly seated, you will see the Status LED, located on the top of

each front panel, illuminated in green.

3. A cable should then be connected between the fiber port on each NIC and a

port on an M3-SW32-16F switch line card on the M3-CLOS-ENCL

enclosure. Configurations of more than 256 hosts employ quad-link ribbon-

fiber cables for inter-switch connections.

If more than one Myrinet switch is being used in your configuration, refer

to the provided network diagram for cabling details.

If you have M3F2-PCIXE NICs, you can connect both ports of each NIC

to one switch or to different switches in a dual-rail configuration. Refer to

the FAQ entry http://www.myri.com/cgi-bin/fom?file=326 for details.

4. Configure the monitoring line card (located in the left-most-slot) in the switch

by assigning it an IP address statically or via DHCP.

To assign a static IP address to the monitoring line card:

Step 1: Does the TFT Display include the option net? If yes, proceed to

Step 2. Otherwise, you must connect the monitoring line card via DHCP

(see page 11) and upgrade the firmware to v0.9.8.8 or later and reboot.

Step 2: To use static IP addressing select net on the main TFT screen and

enter the IP address and netmask with the turn-push knob.

Step 3: Enable addressing by setting enabled to yes, and then click done.

Step 4: Connect at least one of the ethernet ports to the LAN. For high

availability, the second ethernet port can also be connected.

Note: The ethernet ports on the monitoring line card are 10/100-Base-T.

Step 5: Reboot the monitoring line card (or power cycle the switch).

When the monitoring card comes up again it will skip the DHCP step and

use the assigned IP address and netmask.