Mô tả
25GbE SFP28 Specifications
• Ethernet
– 25GbE / 10GbE / 1GbE
– IEEE 802.3ad, 802.1AX Link Aggregation
– IEEE 802.1Q, 802.1P VLAN tags and priority
– IEEE 1588v2
– Jumbo frames support (9.6KB)
• Enhanced Features:
– Hardware-based reliable transport
– Collective operations offloads
– Vector collective operations offloads
– 64/66 encoding
– Dynamically Connected transport (DCT)
– Enhanced Atomic operations
– Support for MSI/MSI-X mechanisms
• Storage Offloads:
– RAID offload – erasure coding (Reed-Solomon) offload
• CPU Offload Features:
– RDMA over Converged Ethernet (RoCE)
– TCP/UDP/IP stateless offload
– LSO, LRO, checksum offload
– RSS (can be done on encapsulated packet), TSS,
HDS, VLAN insertion/stripping, Receive flow
steering
– Intelligent interrupt coalescence
• Overlay Networks:
– Stateless offloads for overlay networks and tunneling protocols
– Hardware offload of encapsulation and decapsulation of NVGRE
and VXLAN overlay networks
• Hardware-Based I/O Virtualization:
– Single Root IOV
– Multi-function per port
– Multiple queues per virtual machine
– VMware NetQueue support
• Virtualization:
– SR-IOV: Up to 256 Virtual Functions
– SR-IOV: Up to 16 Physical Functions per port
• Management Features:
– Remote boot over iSCSI
– PXE and UEFI
• OS Support:
– RHEL/CentOS
– Windows
– FreeBSD
– VMware
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