Basic Operation
Rev 1.0
Mellanox Technologies
28
2.6.3
I2C Connector
There is an I2C connector on the far left of the power side of the gateway.
This interface is for
Debug and Troubleshooting only.
This connector can be used to install firmware upgrades, should
the firmware image be damaged and cannot be upgraded through a host PC or remotely. This
interface is for support personnel and advanced users only.
2.6.4
Reset Button
On the connector side panel under the system LEDs is a reset button. This reset button requires a
tool to be pressed.
Figure 18: Reset Button
This button resets both the CPU of the gateway device and the CPU of the management module.
It thereby resets all of the ports by bringing them down and powering them up when the button is
pushed. A quick push of this button performs this reset. When the button is held down for 15 sec-
onds the gateway is reset and the password is deleted. You will then be able to enter without a
password and make a new password for the user
“admin”
.
2.6.5
Port Connector Interfaces
The connector side of the gateway has 36 QSFP ports. These are placed in two rows, 18 ports to
a row. The ports are labelled as shown in Figure 19. The bottom row ports are flipped from the
top row. See Figure 20 for bottom row - top row port orientation. See page 51 for more informa-
tion regarding breakout (fanout) cables.
Do NOT use excessive force when inserting or extracting the USB from the connec-
tor.
DO NOT use a sharp pointed object such as needle or push pin for pressing the Reset
button. Sharp objects can cause damage, use a flat object to push the reset button.
Press the reset button to reset the main and
management CPUs and to delete the existing
password.
