|
and TFT Color Display of the Myrinet-2000 Switches for Large Clusters |
Home | Introduction | Web Interface | TFT Display | Appendix | Glossary
Note that this interface may be modified in the future and this information only reflects the current state of the software.
As described in the FAQ entry (http://www.myri.com/cgi-bin/fom?file=374), when the switch is powered on, the color-TFT display (driven by the monitoring line card) will illuminate and have a color-bar display. After the operating system finishes booting (about 10 seconds), the color-bar display will redraw into a virtual image of the switch. (See image below.)
(On some of the early monitoring line cards, the TFT display will wait for DHCP to finish before it starts drawing the image of the cluster. Thus, a customer may need to connect the monitoring line card to the ethernet and set up DHCP before the color bars will disappear.)
As an example, we will examine the TFT display of a M3-CLOS-ENCL containing M3-SW32-16F and M3-4SW32-16Q switch line cards.
The first screen that we will see on the TFT display represents a virtual image of the switch line cards in the enclosure (not including the monitoring line card.) Since the switch line cards are inserted vertically into the switch chassis, each column of the image in the TFT display corresponds to a specific switch line card in the switch chassis.
At the top-left corner of this virtual image, we see the words face, log, big_uc, and net.
face indicates the screen that shows the virtual image of the switch (with lights to indicate which ports are active).
This format allows selecting an item (box) by turning the Display Control knob to the desired item and pushing on the knob to select it. Details are below.
Selecting log on the top-level screen will show the log of all events. Selecting one of the events will show more information about the switch when the event occurred.
Once a log is selected, a localized data screen is displayed. Selecting back in the top-left corner of the screen will bring us to the screen for that slot. Another back will bring us back to the virtual-switch screen, with the slot of this log highlighted. (With the web browser, a filter can be modified to collect only certain event types).
Selecting big_uc provides information on the monitoring Line card.
Selecting net allows you to assign a static IP address to the monitoring line card.
As can be seen from the above photo, each column in the virtual image corresponds to a specific switch line card in the switch chassis. Each column consists of a circle at the top of the column, representing the state of the Status LED for the switch line card, followed by 16 squares underneath corresponding to the status of the sixteen switch ports on that switch line card.
The circle at the top of each virtual line card mirrors the state of the Status LED on the switch line card.
Note: It is also possible to change the color of the Status LED on the switch line card using the web interface to the switch. (Specifically, this can be done by selecting the force led command under the operating_led option for each line card.) This is a particularly useful feature for debugging. Thus, if a status LED is illuminated in amber, we should check the setting for the LED to make sure that the color was not modified via the web interface.
If the status LED is not illuminated in green, also make sure that this is the proper switch line card for this slot in the enclosure, and if so, try reseating the switch line card in the slot. For further details, refer to the specifications for the M3-CLOS-ENCL and M3-SPINE-ENCL switches, as well as this FAQ entry.
Underneath each virtual status LED light are 16 squares, corresponding to each port on the switch line card. These squares indicate the status of all the switch ports in this switch. If the column of 16 squares corresponds to quad-link ribbon-fiber ports, each square will be subdivided into 4 quadrants. Each quadrant is associated with one of the 4 fibers in the quad port as follows.
0 1 2 3(Refer to the web interface documentation for further details.)
The color of the square indicates the following:
All of the connected switch ports on the TFT display should be illuminated in green.
If some of the connected switch ports are not illuminated in green (or yellow if there is traffic), please follow the steps outlined in the Appendix to diagnose the problem.
Note: Be aware that when looking at the TFT display from below, the color yellow may appear red. Red is not a color in use on the TFT panel.
To obtain more information on a specific switch port, first turn the Display Control Knob (located on the monitoring line card) clockwise until the desired column in the virtual switch has been reached, and then push the knob to select this virtual line card. After the knob has been pushed, the Status LED circle at the top of the column will be highlighted.
Turn the Display Control Knob again to scroll through the rows on the display to select a specific port on that switch line card. Push the knob to select the port, the port will then be highlighted, and then a new TFT display screen containing the current state of the port will appear.
For M3-SW32-16F line cards, selecting a port displays the data for that sff port. (sff port stands for the small form factor port, namely the standard LC single fiber ports). For example,
back refresh signal lost: 1 signal lost count: 1 self test result: 0 control: 0
If any of the following switch counters report a non-zero value, then click on its name below to be forwarded to the glossary for its definition and a list of possible explanations for a non-zero value.
control
The control button is not yet activated for the TFT display.
Clicking on back in the top-left corner of this screen will jump to the full switch line card information (including the firmware version and the serial number).
Selecting back again will jump to the virtual switch image level.
For M3-4SW32-16Q line cards, selecting a port displays the data for that quad port. For example,
back refresh signal lost: 0 signal lost count: 0 module fault: 0 module fault count: 0 self test result: 0 control: 0
If any of the following switch counters report a non-zero value, then click on its name below to be forwarded to the glossary for its definition and a list of possible explanations for a non-zero value.
control
The control is not yet activated for the TFT display.
Clicking on back in the top-left corner of this screen will jump to the full switch line card information (including the firmware version and the serial number).
Selecting back again will jump to the virtual switch image level.
Description for selecting Log goes here.
Clicking on big_uc on the top-level TFT screen will yield:
If you click on voltage 0, you will see:
If you click on temperature 0, you will see:
current over current fault: 0 over current count: 0 current: 691.2m mA
operating_led led state: 2 (green) force led: 0 (default)
Clicking on net on the top-level TFT screen will yield:
Dial the turn-push knob to the desired digit to be modified, click on the digit, and then dial the turn-push knob until you see the correct number. Click to assign that number to the digit. Repeat for each digit in the IP address and the netmask. Enable static addressing by setting enabled to yes, and then click done to return to the main tft display menu. Connect at least one of the ethernet ports to the LAN, and reboot the monitoring line card (or power cycle the switch). When the monitoring line card comes up again it will skip the DHCP step and use the assigned IP address and netmask.
Last updated: 27 August 2007