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Upgrading to 40/100 Gigabit Ethernet? Consider the Implications on your Multimode Fiber Infrastructure

Posted by OJ Johnston on Mon, May 11, 2015 @ 17:05 PM

While many enterprises are considering the move to a 40/100G ethernet infrastructure, often they overlook the impact of remaining with a multimode fiber infrastructure. While there is little difference in the infrastructure requirements of 10G ethernet for single-mode fiber and multimode fiber infrastructures, there is an exponential difference in 40/100G ethernet infrastructures. Many people tout the economics of MMF vs SMF lasers as the key reason for remaining with their MMF infrastructure; however, the savings achieved there will likely be erased by the increased cost of the passive optical infrastructure.

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Topics: network monitoring, single mode optical fiber, multimode optical fiber, 100G, optical taps, network taps, 40G, gigabit ethernet

Best Practices for Network Monitoring Traffic Capture

Posted by OJ Johnston on Thu, Dec 20, 2012 @ 18:12 PM

In recent years, companies have shown the benefits of “copying” and sending traffic from network backbones to purpose-built monitoring devices…no interference with the existing, “live” traffic and the traffic can be analyzed in real-time or stored for later playback. However, the best approaches to “copying” and sending the traffic to be monitored has been a source of contention.  As 40/100G becomes more prevalent, how the traffic is accessed will become increasingly important.

Initially, the Switched Port Analyzer (SPAN) ports were used to deliver copies of traffic to analyzers, but this has posed several problems at the 1G and 10G data rates, which likely will increase exponentially with 40/100G:

  • SPAN ports are part of the switch/router and operate in much the same way as typical ports, so the data is not always an exact copy
     
  • Traffic congestion both on the router and on the SPAN port itself can result in increased latency or the traffic to be dropped completely
     
  • Relying on a device that could be creating the problem to help identify it can be a self-defeating exercise
     
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Topics: 100G, network monitoring, network tap, traffic capture, analyzer port, passive optical taps, layer 1 switch, ethernet tap, network traffic analyzer

Best Practices for Simulating a Physical Fiber Optic Network

Posted by Kevin Miller on Fri, Mar 23, 2012 @ 10:03 AM

This new, free whitepaper from M2 Optics Inc. discusses the importance of simulating a physical fiber optic network in the laboratory and best practices for achieving maximum results.
 

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Topics: optical fiber, m2 optics, 100G, optical fiber spools, network simulation, fiber optic network simulator

Free Webinar: "The Need for Speed - Migrating Your Test Lab to 100G"

Posted by Kevin Miller on Wed, Feb 1, 2012 @ 15:02 PM

Free Webinar by ONPATH Technologies, QualiSystems, and M2 Optics
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Thursday, February 9th at 1pm EST/10am PST
 

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Topics: 100G, m2 optics, ONPATH, QualiSystems, 100G solutions, 100G network, test lab, 100GbE, 100G equipment