IBM System x3750 M4 20Network adaptersx3750 M4 supports two integrated Gigabit Ethernet ports. Optionally, two 10 Gb Ethernet ports can beadded by installing one of the available dual-port 10 Gb Ethernet cards listed in Table 12 (88Y7429 or88Y7427). These cards use a dedicated connector on the system board and do not consume a PCIexpansion slot. The onboard Emulex BE3 controller provides both the Gigabit Ethernet ports and the 10Gb Ethernet ports. The optional cards are used route the ports to external RJ45 or SFP+ ports.The integrated controller has the following features:Emulex BE3 chipTwo Gigabit Ethernet ports and two 10 Gb Ethernet ports with optional adapter (1 Gb and 10 Gbauto-negotiation)Full-duplex (FDX) capabilitySupports IPv6Optional 10 Gb ports that operate in either a virtual NIC (vNIC) or physical NIC (pNIC) mode:vNIC mode: Up to six vNICs (up to three vNICs per one 10 Gb port):Virtual Fabric mode or Switch Independent operational modeVirtual port bandwidth allocation in 100 Mbps incrementsUp to two vNICs can be configured as an iSCSI or FCoE vNICs (one per port) with optionalAdvanced Upgrade (90Y9310)pNIC mode: Dual-port 1/10 Gb Ethernet adapterIEEE 802.1Q VLAN taggingVLAN insertion and extractionJumbo frames up to 9000 bytes.Load balancing and failover teaming support, including adapter fault tolerance (AFT), switch faulttolerance (SFT), adaptive load balancing (ALB), and IEEE 802.3adSupports Serial over LAN (SoL) and concurrent KVM (cKVM)Wake On LAN support (1 Gb ports only)Message Signal Interrupt (MSI-X) supportIPv4/IPv6 offload:IPv4 TCP Chimney OffloadTCP, UDP checksum offloadLarge send offload (LSO)Large receive offload (LRO)Receive side scaling (RSS)Enhanced Ethernet (draft) support:Enhanced Transmission Selection (ETS) (P802.1Qaz)Priority-based Flow Control (PFC) (P802.1Qbb)Data Center Bridging eXchange Protocol (DCBX) (P802.1Qaz)