M1E2G4BPI35 ExpressModule Bypass Card

Quad Port Copper Gigabit Ethernet Express Module Bypass Server Adapter

Silicom’s Quad Port Copper Gigabit Ethernet ExpressModule Bypass server adapter is a PCI-Express X8 network interface card that contains four ports on a PCI-E adapter.

Silicom’s Quad Port Gigabit Ethernet Bypass server adapter supports Normal, Disconnect 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 ports are disconnected from the system 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 the adjacent 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 Quad Port Copper Gigabit Ethernet ExpressModule Bypass server adapters are based on Intel i350 Ethernet controller with quad fully integrated Gigabit Ethernet Media Access Control (MAC) and PHY. In addition to managing MAC and PHY Ethernet layer functions, the controller manages PCI Express packet traffic across its transaction, link, and physical/logical layers.

Silicom’s Quad Port Copper Gigabit Ethernet ExpressModule Bypass server adapters are the ideal solution for implementing multiple network segments, mission-critical high-powered networking applications and environments within high performance servers.

M1E2G4BPI35 ExpressModule Bypass Card

Quad Port Copper Gigabit Ethernet Express Module Bypass Server Adapter

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

Copper Gigabit Ethernet 1000Base-T :

• Independently copper Gigabit Ethernet channels support four Gigabit Ethernet (1000Base-T), Fast Ethernet (100Base-Tx) and Ethernet (10Base-T)
• Triple speed 1000Mbps (1000Base-T), 100 Mbps (100Base-Tx) and 10 Mbps (100Base-T) operation
• Nway auto negotiation automatic sensing and switching between 1Gbps full duplex and 100 / 10 Mbps operations Simplex or Full Duplex
• RJ-45 female connectors

Performance Features:

• 8 Transmit and 8 Receive queues per port
• Up to 32 queues of Receive Side Scaling (RSS) minimize CPU utilization across multiple processor systems
• Support PCI-SIG Single-Root I/O virtualization Rev 1.1
• Support for up to 8 virtual function ( VFs)
• Partial replication of PCI Configuration space
• Support for 8 pools (single queue) of virtual machine Device Queues (VMDq) per port
• Support Direct Cache Access (DCA)
• Support Intel I/O Acceleration Technology v3.0
• TSO interleaving for reduced latency
• Minimized number of device I/O interrupts using MSI and MSI-X
• UDP, TCP and IP checksum offload
• UDP and TCP transmit segmentation offload (TSO). machine
• SCTP receive and transmit checksum offload
• Packet interrupt coalescing timers (packet timers) and absolute-delay interrupt timers for both transmit and receive operation
• EEE (IEEE 802.3az) for reduced power consumption during low link utilization periods

Common Key features:

• PCI Express ExpressModule Electromechanical Specification Revision 1.0
• Support PCI Express Base Specification 2.1 (5 GTs)
• High performance, reliability, and low power use in Intel i350 Quad integrated MAC + PHY and SERDES chip Controllers
• Ultra deep, packet buffer per channel lowers CPU utilization
• Hardware acceleration that can offload tasks from the host processor. The Controllers can offload TCP/UDP/IP checksum calculations and TCP segmentation
• Server class reliability, availability and performance features:
• Link Aggregation and Load Balancing
• Priority queuing – 802.1p layer 2 priority encoding
• Virtual LANs –802.1q VLAN tagging
• Jumbo Frame (9.5KB)
• 802.x flow control
• Multicast/ broadcast Packet replication
• Supports Vital Product Data (VPD)
• LEDs indicators for link/Activity Mode status
• Hot Plug not supported. Can be supported by assembly change
• LEDs indicators for link/Activity/Bypass Mode status

M1E2G4BPI35 ExpressModule Bypass Card

Quad Port Copper Gigabit Ethernet Express Module Bypass Server Adapter

Functional Description

Silicom’s Quad Port Bypass adapter supports Normal, Bypass and Disconnect modes. In Normal mode, the ports are independent interfaces (see Figure 1: Normal mode, one Bypass pair is illustrated)

Figure 1: Normal Mode Functional Block Diagram

In Bypass mode, the connections of the Ethernet 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. The connections of the interfaces are left unconnected. (See Figure 2: one Bypass pair illustrated)

Figure 2: Bypass Mode Functional Block Diagram

In Disconnect mode, the connections of the Ethernet network ports are disconnected from the interfaces. (See Figure 3: one Bypass pair illustrated

Figure 3: Disconnect Mode Functional Block Diagram

Silicom’s Quad Port Bypass adapter supports software programmable to select Normal, Bypass or Disconnect modes.

Silicom’s Quad Port Bypass adapter supports Disable Bypass, Disable Disconnected capabilities; hence, if those adapters receive Disable Bypass capability / Disable Disconnect commands, the adapter does not Bypass / does not Disconnect its Ethernet ports, The Disable Bypass Capabilities are reserved also after power off. This feature enables to emulate a standard NIC.

Silicom’s Quad Port Bypass adapter supports Disable supports setting the default mode at power up and power off. Those setting are reserved also after power off.

M1E2G4BPI35 ExpressModule Bypass Card

Quad Port Copper Gigabit Ethernet Express Module Bypass Server Adapter

Note: Model P/N -SD

-SD: Side Driver

-R: RoHS Compliant / Lead free adapter

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