400G CFP8 FR8 and LR8 Transceivers with PAM4 Technology

400G CFP8 FR8 and LR8 Transceivers with PAM4 Technology

400G Ethernet technology is demonstrated at the Optical Networking and Communication Conference & Exhibition (OFC) 2017, and new module types like 400G CFP8 FR8 and LR8 with pulse amplitude modulation (PAM4) technology are announced. Why 400G now? While we’re still considering adopting 100G in our business, some hyperscale data centers are in urgent demand of improvements in speed and density. So component makers worked out the 400G Ethernet solutions for this group, of which CFP8 FR8 and LR8 are two…

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Compatible Transceivers and Cabling Solution for Mikrotik CRS317-1G-16S+RM Switch

Compatible Transceivers and Cabling Solution for Mikrotik CRS317-1G-16S+RM Switch

The business models today have become increasingly digital, which requires an increasingly faster and reliable network. There has never been so much traffic and applications running on the networks and it keeps growing, bringing much pressure to enterprises’ networks. Although 40G and 100G are predicted to be the mainstream in the future, for some small business, a 10G network is enough. A 10G switch is one of the most important parts for upgrading to 10G network. Here in this article we…

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RJ45 vs SFP: Which Should I Use to Connect Two Switches?

RJ45 vs SFP: Which Should I Use to Connect Two Switches?

When switches have both SFP port and Ethernet port for 1000Mbps connections, it is always the case for us to decide whether to use SFP fiber optic module or RJ45 Ethernet cable solution. Although it really depends on many factors, there are some principles that we could follow in our situation so as to meet our requirements.   Common Principles for Using RJ45 vs SFP The first principle is appropriate for any cases of 1000Mbps deployment. That is when the…

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10G Stacking Over Cat6a or DAC

10G Stacking Over Cat6a or DAC

We have got benefits from the stacking of 10G SFP+ switches for the past decades, and the 10G SFP+ direct attach cable (DAC) makes the stacking low-cost. But when 10GBASE-T becomes a new port choice on 10G switches, stacking on 10G switches has to meet the issue about whether to choose Cat6a or SFP+ DAC. At first people think that Ethernet cable is cheaper and easier to deploy than SFP+ DAC, but later they realized the issue is not only…

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Things You Should Know About InfiniBand

Things You Should Know About InfiniBand

In today’s high speed information era, more and more people are expecting much for high bandwidth and low latency of Internet, which are the two most common parameters used to compare link performance. To cater to most people’s requirements, InfiniBand is designed to take advantage of the world’s fastest interconnect, supporting up to 56Gb/s and extremely low application latency. So what is InfiniBand exactly? You may find answer in this post. Introduction to InfiniBand InfiniBand (IB) is a computer-networking communication…

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