PCIe4 2-port 25/10/1 Gb RoCE SFP28 adapter (FC EC71 and FC EC72; CCIN 2CF9)
Learn about the specifications and operating system requirements for feature code (FC) EC71 and FC EC72 adapters.
Overview
FC EC71 and EC72 are both the same adapter with different feature codes. FC EC71 is a low-profile adapter, and FC EC72 is a full-height adapter.
The PCIe4 2-port 25/10/1 Gb RoCE SFP28 adapter (FC EC71 and EC72) is a PCI Express (PCIe) generation 4 (Gen4) x8 adapter. The adapter provides two 25 Gb SFP28 ports. The adapter supports both the Ethernet network interface controller (NIC) function and RDMA over Converged Ethernet (RoCE). Using RoCE, the adapter can support greater bandwidth with low latency. It also minimizes CPU overhead by more efficiently using memory access. This offloads the CPU from I/O networking tasks, improving performance and scalability.
![PCIe4 LP 2-port 25/10/1 Gb RoCE SFP28 Adapter](p10hcdec71.gif)
![PCIe4 2-port 25/10/1 Gb RoCE SFP28 Adapter](p10hcdec72.gif)
Specifications
- Item
- Description
- Adapter FRU number
- 03HD074
- Wrap Plug FRU number
- 74Y7010 (Twinax wrap plug)
- I/O bus architecture
- PCIe4 x8
- Slot requirement
- For details about slot priorities, maximums, and placement rules, see Adapter placement rules and slot priorities and select the system you are working on.
- Voltage
- 3.3 V, 12 V.
- Form factor
- Short, low-profile (FC EC71).
- Attributes provided
- RDMA over Converged Ethernet (RoCE).
- Cables
- For 25 GbE, IBM offers SFP28 Passive Copper 25 Gb Ethernet cables up to 2 m. SFP28 based transceivers are included on each end of these cables.
- Transceivers
- For 25 GbE, IBM qualifies and supports the SFP28 optical transceiver (FC EB47) to install into the adapter. Customers can also use their own optical cabling and SFP28 optical transceiver for the other end. The 25 Gb optical transceiver is capable up to 100 m through the OM4 cable or 70 m through OM3 cable. Either one or both of the adapter’s two SFP28 ports can be populated.
Cable and Transceiver information
- OM3 or OM4: Multimode 50/125 micron fiber, 2000 MHz x km bandwidth
- OM2: Multimode 50/125 micron fiber, 500 MHz x km bandwidth
- OM1: Multimode 62.5/125 micron fiber, 200 MHz x km bandwidth
- 1 Gb using EB48 requires Cat 5e STP cables to meet all EMI emissions standards.
Because core sizes are different, OM1 cables can only be connected to other OM1 cables. For best results, OM2 cables must not be connected to OM3 or OM4 cables. However, if an OM2 cable is connected to an OM3 or OM4 cable, the characteristics of the OM2 cable apply to the entire length of the cables. The following table shows the supported distances for the different fiber optic cable types at different link speeds.
Rate | Cable type and distance | ||
---|---|---|---|
10 Gb/s | OM1 | OM2 | OM3 |
0.5 m to 33 m (1.64 ft to 108.26 ft) | 0.5 m to 82 m (1.64 ft to 269.02 ft) | 0.5 m to 300 m (1.64 ft to 984.25 ft) |
Rate | Cable type and distance | ||
---|---|---|---|
25 Gb/s | OM2 | OM3 | OM4 |
0.5 m to 20 m (1.64 ft to 65.62 ft) | 0.5 m to 70 m (1.64 ft to 229.66 ft | 0.5 m to 100 m (1.64 ft to 984.25 ft) |
Feature code | Description |
---|---|
EB46 | 10 Gb optical transceiver (purchased separately) |
EB47 | 25 Gb optical transceiver (purchased separately) |
EB48 | 1 Gb RJ45 transceiver (purchased separately) |
EB4J | 25 Gb/s 0.5 m (1.6 ft) SFP28 passive copper 25 Gb Ethernet cable |
EB4K | 25 Gb/s 1.0 m (3.3 ft) SFP28 passive copper 25 Gb Ethernet cable |
EB4M | 25 Gb/s 2.0 m (6.6 ft) SFP28 passive copper 25 Gb Ethernet cable |
EB4P | [100 Gb/s to 4x25 Gb/s] 2.0 m (6.6 ft) QSFP28 passive copper to SFP28 4x25 Gb Ethernet split cable |
EN01 | 10 Gb/s 1 m (3.3 ft) copper active twinax Ethernet cable |
EN02 | 10 Gb/s 3 m (9.8 ft) copper active twinax Ethernet cable |
EN03 | 10 Gb/s 5 m (16.4 ft) copper active twinax Ethernet cable |
Operating system or partition requirements
- The latest version of enabling libraries and utilities can be downloaded from the Fix Central website.
- Power Systems Prerequisites website.
- IBM System Storage Interoperation Center (SSIC) website.
- The latest version of the device driver or IBM Power® RAID adapter utilities (iprutils) can be downloaded from the IBM Service and Productivity Tools website.
- For information about important notices for Linux on Power servers, see the Linux® on IBM website.