Tag Archives: SFP+ transceiver

Dell Powerconnect 2700 Vs. 2800 Series Switches

Both the Dell PowerConnect 2700 series and 2800 series switches are secure, fixed-port Gigabit switches. The Dell PowerConnect 2700 series was launched in the early 2000s, designed to deliver full wire-speed switching performance. Not long after the 2700 series, the 2800 series were released to support jumbo frames for networks that need to move large files across the network. They are both cost-effective solutions for small network environments, such as branch offices, schools and etc. However, it seems that it is hard to make a decision about purchasing these two series switches. This article would offer a satisfied solution to you and give a brief introduction to 2700 series and 2800 series switches.

Dell PowerConnect 2700 Series Switches

The Dell PowerConnect 2700 series switches are web-managed switches, the web-interface allows the user to easily manage the network switch without learning CLI commands or integrating the switch into an SNMP-based application. These switches offer three port densities, including 8, 16, 24 and 48 Gigabit Ethernet 1 ports. Besides, the 2724 and 2748 have SFP slots in a combo port arrangement that deliver fiber capabilities. Auto MDI/MDIX and autonegotiation of speed, duplex mode and flow help deliver improved control over your network traffic. Totally, there are four models of 2700 series switch—Dell PowerConnect 2708, 2716, 2724, 2748. The main features of these switches are listed in the below:

  • There switches are prepared in advance for any elevated IT requirements.
  • They could eliminate the potential risks within the switch.
  • The 2700 series switches provide the flexibility to meet the requirement of various end users and applications environments.
  • They provide smartly balancing quality and the best prices.

dell-powerconnect-2716-overview

Figure1: Dell Powerconnect 2716 switch

Dell PowerConnect 2800 Series Switches

As same as the 2700 Series Switch, Dell PowerConnect 2800 Series Switches are also web-managed Gigabit Ethernet switches. These switches offer four port densities, including 8, 16 , 24, and 48 port Gigabit Ethernet ports. In addition, the 2824 and 2848 have SFP slots in a combo port arrangement that deliver fiber capabilities (SFP transceivers optional). The PowerConnect 2800 family also supports jumbo frames for networks that need to move large files across the network. There are also four switch models of 2800 series switches—Dell PowerConnect 2808, 2816, 2824, and 2848. Main benefits of 2800 series switches are listed in the following.

  • Easy web access to the managed features provides a secure environment by offering password restricted access.
  • These switches offer enhanced security by allowing the user to specify which IP addresses have access to the switch.
  • The 2800 series switches support up to six link aggregation groups consisting of up to four ports per group.
  • Advanced cable diagnostics help improve network troubleshooting.

Dell 2800 series switch

Figure2: Dell 2800 Series Switches

Dell 2700 Vs. 2800 Series switches

As being described, the Dell PowerConnect 2700 and 2800 series switches are nearly identical. But they still have some subtle differences in STP, management configuration, switching and price.

—Spanning Tree Protocol (STP)

Compared to Dell PowerConnect 2700 series switches, 2800 series support more STP protocols and support 9000 jumbo frames (not not 9014, etc.). If you do a ping -f on the 2724 with jumbo frames enabled it will go to 5000, 5500, 6000, but not 9000 – they get fragmented at that point. Granted that is only useful for iSCSI traffic, and even then it’s not 100% necessary. And the 9014+ jumbo frames is of the preference.

—Management Configuration

Both 2700 and 2800 series switches are small office switches with minimal management. They all not have LACP. BootP/DHCP IP address management or Static IP address assignment are set within the 2800 series switches. The 2800 series switches have CLI and SNMP Command Subset while the 2700 series switches do not.

—Switching

The link aggregation of both two series switches are up to eight aggregated links and up to eight member ports per aggregated link (IEEE 802.3ad). But the Jumbo frame of 2700 series switches support up to 9000 Bytes (2716, 2724, and 2748). The 2800 series switches have LACP support (IEEE 802.3ad).

—Price

Compared to 2700 series switches, 2800 series switches are cheaper. Just take the same 16-port switch for a example, a new Dell 2816 switch only needs $56 while a new Dell 2716 switch costs $112 on eBay.

Conclusion

Through this article, we are clear about the Dell 2700 and 2800 series Gigabit Ethernet switches as well as their differences in STP, management configuration, switching and price. They all powerful switches with outstanding cost and power savings. You can select an appropriate one according to your need.

Originally published at http://www.fiber-optic-cable-sale.com/dell-powerconnect-2700-vs-2800-series-switches.html.

Intel Network Adapters for Dell PowerEdge R710 Servers

With the growing prevalence of Dell PowerEdge Servers, Dell PowerEdge R710 servers gradually caught Ethernet users’ eyes for its competitive price, superb quality and low power consumption. As one part of the Dell PowerEdge Select Network, Intel Ethernet Network Adapters are high performance adapters for 1/10/25/40GbE Ethernet network connections. This article would give a brief introduction to Dell R710, Intel NDC for Dell R710 and optics for Intel NDC.

About Dell PowerEdge R710

The Dell PowerEdge R710 is a 2U rack server that can support up to two quad- or six-core Intel Xeon 5500 and 5600 series processors and to eight SATA or SAS hard drives, giving you up to 18TB of internal storage. It has 18 memory slots allow for a maximum of 288GB of memory, allowing the R710 to support and memory-intensive task you can throw at it. It has low power consumption and high performance capacity, which helps you save both money and time. We would provide detailed information about Dell PowerEdge R710 in the next two parts.

Dell R710 2U Rack Server

Figure1: Dell R710 2U Rack Server

Dell R710 Dimensions

Dell R710 Dimensions

Main Features:
—Processors

Dell PowerEdge R710 adapted Intel’s E5-2600 processors, which have up to 20MB cache and up to 8 cores versus the 5500 and 5600 processors which max out at 12MB Cache and 6 cores. These 8-core processors are ideal for increased security, I/O innovation and network capabilities, and overall performance.

—Storage

The R710 supports a high level of internal storage maxing out at 18TB. That includes up to six 3.5″ hard drives or eight 2.5” hard drives. It provides support for 6Gb/s SAS, SATA, and SSD drives.

—Controller

The R710 sports Dell’s new iDRAC6 management controller, which has a dedicated network port at the rear of the server. It provides a web browser interface for remote monitoring and viewing the status of critical server components, and the Enterprise upgrade key brings in virtual boot media and KVM-over-IP remote access.

—Remote Management

Based on Symantec’s Altiris Notification Server, the Management Console takes over from Dell’s elderly IT Assistant and provides the tools to manage all your IT equipment, instead of just Dell servers. Installation is a lengthy process, but it kicks off with an automated search process that populates its database with discovered systems and SNMP-enabled devices.

Intel network Adapters for Dell PowerEdge R710 servers

According to Dell PowerEdge R710 datasheet, the Dell PowerEdge R710 servers support dual port 10GB enhanced Intel Ethernet server adapter X520-DA2. This Dell Intel Ethernet Network Daughter Card X520/I350 provides low cost, low power flexibility and scalability for the entire data center. The Intel Ethernet Network Daughter Card X520-DA2/1350-T2 provides two 1000BASE-T ports and two 10G SFP+ ports as shown in Figure 2 to support 1GbE/10GbE Ethernet network connectivity.

Intel Ethernet Network Daughter Card X520-DA2

Figure2: Intel Ethernet Network Daughter Card X520-DA2

Cables And Optical Modules for Intel NDC X520-DA2

As we mentioned before, the Intel Ethernet Network Daughter Card X520-DA2 provides two 1000BASE-T ports and two 10G SFP+ ports respectively. We can plug two Intel compatible SFP transceivers into the two 1G ports on the Intel NDC X520-DA2 respectively to achieve 1G network connection. Likewise, we can also connect Intel compatible SFP+ transceiver to the 10G port on the Intel card for making 10G data transferring. In addition, we can also use Direct Attach Cable (DAC) to achieve 10G network connectivity, such as 10Gb fibre optic cable, Intel 10G SFP+ DAC cable. DAC cables are suitable for data transmission over very short link length while optical modules are more appropriate for longer transmission distance.

Intel NDC X520-DA2 with 10G optical modules

Figure3: Intel NDC X520-DA2 with 10G optical modules

Conclusion

The Dell PowerEdge R710 server with the high performance of Intel Ethernet Network Daughter Card X520-DA2 offers you a 2U rack to efficiently address a wide range of key business applications. With the great Intel NDC card, it also provides you a perfect solution for 1G and 10G Ethernet network connectivity. You can rest assured to enjoy a low consumption but high capacity server to keep your business.