M1EG4BPi6
Quad Port Copper Gigabit Ethernet ExpressModule Bypass Server Adapter

Description
Silicom’s Quad Port Copper Gigabit Ethernet ExpressModule Bypass server adapter is a PCIExpress X8 network interface card that contains four ports on a PCI-E adapter. Silicom’s Quad Port
Gigabit Ethernet Bypass server adapter supports Normal and Bypass modes.
In Normal mode, the ports are independent interfaces. In Bypass mode, all packets received from
one port are transmitted to adjacent port. In Disconnect mode, the adapter simulates switch / rout
cable disconnection.
In Bypass mode, the connections of the Ethernet PCI Express network ports are disconnected from
the interfaces and switched over to the other port to create a crossed connection loop-back between
the Ethernet ports. Hence, in bypass mode all packets received from one port are transmitted to other port and vice versa. This
feature enables to bypass a failed system and provides maximum up time for the network.
In Disconnect mode, the adapter simulates switch / router cable disconnection. In Disconnect mode, the switch / router does not
detect link partner of the adapter.
Silicom’s Quad Port Copper Gigabit Ethernet ExpressModule Bypass server adapters include an on board WDT (Watch Dog
Timer) controller. The adapter’s software drivers or software application can write commands to the on board WDT controller.
The adapter’s software drivers, WDT controller and the Bypass circuitry provide an interface that control and manage the mode
of the adapter.
Silicom’s MEBPI-Series are adapters are based on Intel 82576 Dual port Gigabit Ethernet MAC+PHY of Intel Controller.

Key Features
Bypass:

• Bypass / Disconnect Ethernet ports on Power Fail, System Hangs or Software Application Hangs.
• Software programmable Bypass, Disconnect or Normal Mode.
• On Board Watch Dog Timer (WDT) Controller.
• Software programmable time out interval.
• Software Programmable WDT Enable / Disable counter.
• Software programmable Bypass Capability Enable / Disable.
• Software Programmable Disconnect Capability Enable / Disable.
• Software Programmable mode (Bypass, Normal or Disconnect mode) at Power up.
• Software Programmable mode (Bypass, Normal mode) at Power off.
• Independent Bypass operation in every two ports.