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Server E9000 Network Interface Cards MZ312 NIC

The MZ312 is a dual-chip Ethernet NIC. It is used for E9000 compute nodes and provides four 10GE ports for compute nodes to connect to switch modules in the chassis.
The MZ312 uses two Intel 82599 chips and supports NIC applications.
The MZ312 can be installed in slot Mezzanine1 (Mezz1 for short) or Mezzanine2 (Mezz2 for short) on a half-width compute node or in slot Mezz1, Mezz2, Mezzanine3 (Mezz3 for short), or Mezzanine4 (Mezz4 for short) on a full-width compute node.
The MZ312 provides network ports for connecting to switch modules:
* When the MZ312 is installed in slot Mezz1 or Mezz3, its four 10GE ports connect to switch modules in slots 2X and 3X.
* When the MZ312 is installed in slot Mezz2 or Mezz4, its four 10GE ports connect to switch modules in slots 1E and 4E.
Figure 1 MZ312 appearance
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Figure 2 MZ312 installation positions on a half-width compute node
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Figure 3 MZ312 installation positions on a full-width compute node
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MZ312 Feature Description
PFC
The 10GE ports on the MZ312 support the PFC feature. This feature supports flow control and back pressure on a per class-of-service (CoS) basis. The MZ312 supports a maximum of eight CoS queues. If both the MZ312 and its connected peer device support PFC, the link between them supports PFC. The MZ312 can identify PFC frames sent by the peer device and adjusts the transmitting bandwidth. If the inbound traffic exceeds the threshold, the MZ312 sends PFC frames to instruct the peer device to control the traffic.
The MZ312 can negotiate with the peer device about PFC parameters over DCBX.
ETS
The 10GE ports on the MZ312 support the ETS feature. This feature assigns port transmitting bandwidth based on priority groups (PGs). The MZ312 supports a maximum of eight CoS queues and eight PGs (BWGs). The minimum bandwidth and maximum bandwidth are assigned to each PG. The minimum bandwidth means the committed bandwidth, which is also known as the committed information rate (CIR). The maximum bandwidth means the maximum shared bandwidth, which is also known as the peak information rate (PIR). If other PGs are underloaded, the local PG can share (borrow) their bandwidths and its maximum bandwidth can reach 10 Gbit/s.
802.1Q VLAN
The MZ312 supports a maximum of 4094 VLANs. Each 10GE port supports a maximum of 4094 VLANs. The VLAN IDs are integers ranging from 1 to 4094.
The MZ312 does not tag or untag packets, but transparently transmits them. VLAN IDs are specified by the OS on an E9000 compute node.
SR-IOV
The 10GE ports on the MZ312 support the SR-IOV feature. The NIC supports a maximum of 256 (2 x 128) VFs or four (2 x 2) physical functions (PFs) and 252 (2 x 126) VFs. The VFs derived from each PF can be assigned to virtual machines (VMs). In this way, the mapping between VFs and VMs is set up.
PXE
The 10GE ports on the MZ312 support PXE.
PXE is used for remote boot over the Ethernet or IP network. It enables users to connect to the remote PXE server for loading an OS.
E9000 _-半宽
Hong Telecom Equipment service LTD provide Network Interface Cards models as below :
03021SMF IT1DMGEA0100 MZ110-4 * GE port buckle card, PCIE 2.0 X4
03022DAX IT11MGEB MZ111, 2 * (2 * GE) port card, PCIE 2.0 X2
03021SMG IT1DMXEC0100 MZ510-2 * 10G port CNA daughter board, PCIE 2.0 X8
03022ATY IT11MXEF MZ512-4 * 10G port CNA daughter board, PCIE 2.0 X8
03022BWD IT11MXEG MZ311, 4 * 10G pinch, PCIE 3.0 X8
03022BYY IT11MXIA MZ610-2 * 40G port HCA buckle card, PCIE 3.0 X8
03021VNH IT11MFIA MZ611-2 * 56G port HCA card, PCIE 3.0 X8
03022DHB IT11MFIB MZ612, 2 * 56G IB FDR daughter board, PCIE 3.0 X8
03022KFT IT11MXIB MZ613, 2 * 40G QDR daughter board, PCIE 3.0 X8
03021SHM IT1DMXEA0000 MZ910-2 * 10GE, 2 * 8G FC port button card, PCIE 3.0 X8

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