Broadcom or Intel Network Adapter for Dell PowerEdge Server?

The NDC, Network Daughter Card (also known as Select Network Adapters), is an innovation technology developed by Dell. As an advanced technology on server, the NDC provides the customers with a flexibility of choosing what they want ( 4 x 1GbE, 2 x 10GbE or 2 x Converged Network Adapter.) With this small, removable mezzanine card, we are no longer limited to use network interface cards (NICs) on the motherboard. And it has been used in the twelfth-generation Dell PowerEdge server. This article will focus on Broadcom or Intel network adapter for Dell PowerEdge Server.

About Select Network Adapter

Network adapter plays an irreplaceable role in a server system, as it can reduce CPU usage on the server, which improves the overall system performance. NDC is a paramount member of Dell PowerEdge Select Network Adapters family. There are two form factors of Select Network Adapters—blade servers and rack servers. (You can see the two servers clearly in the following figure.) The Blade Select Network Adapter provides dual port 10GbE from various suppliers. The Rack Select Network Adapter provides a selection of 1GbE and 10GbE port options, such as 1000Base-T, 10GBASET and 10Gb SFP+.

Rack Mount Servers & Blade Servers

Figure1: Rack Mount Servers & Blade Servers(Resource: www.DELL.com)

PowerEdge Platforms That Support Select Network Adapters

The Blade Select Network Adapter is offered on the PowerEdge M620 blade server.

The Rack Select Network Adapter is offered on the following PowerEdge platforms:

  • R620
  • R720
  • R720xd

PowerEdge R720 Rack Server

Figure2: PowerEdge R720 Rack Server(Resource: www.DELL.com)

Available NDC options
PowerEdge rack servers:
  • Broadcom 5720 Base-T
  • Intel I350 Base-T
  • Broadcom 57800 Base-T and SFP+
  • Intel x540 Base-T
PowerEdge blade servers:
  • Broadcom 57810S KR
  • Intel x520 KR
  • QLogic QMD8262 KR
Form factors of Blade Servers & Rack Servers

Blade servers: There are three form factors of blade servers offered by Dell: Intel x520 Dual Port 10Gb KR NDC, Broadcom 57810S Dual Port 10Gb KR NDC, and QLogic QMD8262-k Dual Port 10Gb KR NDC. Both the Broadcom and Intel blade NDCs will support both 1Gb and 10Gb speeds, while the QLogic blade NDC will run only at 10Gb speeds.

Rack servers: There are mainly two brands of NDC support rack servers—Intel and Broadcom, which would be further explained as follows:

Intel:
  • Intel Ethernet x540 Dual Port 10Gb BT + i350 DP 1Gb BT NDC: A quad-port rack NDC with 2 ports x 1GbE + 2 ports x 10GBASE-T based on the Intel I350 and x540 chipsets.
  • Intel Ethernet i350 Quad Port 1GbE NDC: A quad-port rack NDC with 4 ports x 1GbE based on the Intel I350 chipset.
    An Intel 2x1Gb + 2x10Gb Base-T rack NDC, as shown in the following figure, offers two types of interconnects to meet various connectivity needs.

Rack 2x1Gb+ 2x10Gb BT NDC

Figure3: Rack 2x1Gb+ 2x10Gb BT NDC

Broadcom:
  • Broadcom 57800S 2x1Gb+2x10Gb SFP+ NDC: A quad-port rack NDC with 2 ports x 1GbE + 2 ports x 10G SFP+ based on the Broadcom 57800S chipset. Just shown as the following figure.
  • Broadcom 5720 4x1Gb Base-T NDC: A quad-port rack NDC with 4 ports of 1GbE based on the Broadcom 5720 chipset.

Rack 2x1Gb+ 2x10Gb SFP+ NDC

Figure4: Rack 2x1Gb+ 2x10Gb SFP+ NDC

How to Choose the Optical Cables and Modules for Broadcom or Intel Network Adapter?

Just take Broadcom 57800S 2x1Gb+2x10Gb SFP+ NDC for example. A Broadcom 2 x 1G + 2 x 10G SFP+ NDC provides two 1000BASE-T ports and two 10G SFP+ ports as shown in Figure 6. We can plug two Dell compatible SFP transceivers into the two 1G ports on the Broadcom NDC respectively to achieve 1G network connection. Likewise, we can also connect Dell compatible SFP+ transceiver such as 10Gb Base SR connector to the 10G port on the Broadcom card for making 10G data transferring. Besides, we can also use Direct Attach Cable (DAC) to achieve 10G network connectivity, such as multimode 10Gb fiber optic cable, Dell 10G SFP+ DAC cable. DAC cables provide a cost-effective solution for very short transmission while 10G optical modules are more suitable for data transferring over long distance.

Broadcom 57800S NDC with Dell SFP+ module

Figure5: Broadcom 57800S NDC with Dell SFP+ module

Conclusion

As technology advanced and 10Gb Ethernet became more prevalent in the data center, there must be a prosperous market ahead for blade servers and rack servers. SFP+ modules and Direct Copper Attached is the current preference for 10GbE connectivity of rack servers. Boardcom and Intel are both famous vendors for providing NDCs for Dell PowerEdge Server, you can select a proper one for your server according to your port needs.

 

Optimistic about the Development of 40G and 100G Network Devices in the Future

In June of 2010, the IEEE 802.3 ba 40G/100G standard issued. The Standard Approval timeline for IEEE 802.3ba is depicted in the figure. It makes me looking good forward to its development in the future. Traditional 10G port modules usually adopt LC connector, they are connected by dual cores while 40G Ethernet specification requires 8 cores connections, just 4 cores used for transmitting and another 4 cores used for receiving. Better advice for 40G Ethernet is that the 12 cores fiber cabling solution, each channel has 4 special transmitting fiber and 4 special receiving fiber, middle 4 fibers remain free. 100G Ethernet solution requires to make 24 fibers, it divided into two 12 fibers, one for receiving and another for transmitting, and each of the array, middle 10 fibers used for transit traffic, the two fibers on the ends are setting free.

IEEE

Several years ago, once we met customers who wants to know if our transceiver modules support 40G and 100G ports, we will tell them that some suppliers who launched the 40G and 100G optical transceiver module are mostly based on previous 40G/100G draft, they are not the standard ports, and different vendors exist connection trouble, so we are all not sure. But nowadays, with the mature development of 40G and 100G cores, many supplier launched them their own fiber optic transceiver. In the field of 40G and 100G, device manufacturers adopt the advantage of long term evolution and 40G network which focus on 100G network communication equipment. In fact, it is the estimated results that operator who faces with 40G and 100G network. In the next year, 40G long distance transmission network market supplier will launch the 100G network transmission devices, it will bring a big challenge to the operator. The fact dedicates that fiber optic device operators will do double budgets for current production to meet the demand of the future developments.

In the network market, WDM devices are quite popular between global operators. It makes the sales of the products to improve highly. Adjustable and pluggable optical transceiver module, such as XFP, become quite popular in the ROADM network market, it will broaden the network scopes of operators, includes IP/Ethernet CMTs, OLTs FTTH, DSLAMs. As for the 10G SFP+ transceiver module, such as 10G SFP+ 1550nm 80km, it sales reached three times, they are primarily applied into 10G Ethernet and 8G/16G fiber channel. The main reason why development speed of 100G fiber network faster than 40G is that the price of 100G network is lower than 40G, so the much lower LR4 modules will have a great future. Related product: SFP-10G-LR, see at the figure.

lr

Faced with the rapid progress of 40G and 100G optical transceiver modules, Fiberstore also research its brand. Including production and sales of 40G and 100G. Fiberstore has high quality and reasonable price. Our fiber optical transceivers all pass certification. If you have fiber optical transceivers needs, Fiberstore will be your first choice.