Blogs and Recent News


Everything and Anything that’s on the wire to disk and beyond

OPENSOURCE SCRIPT LIBRARY
Aaron Foo Aaron Foo

OPENSOURCE SCRIPT LIBRARY

Scripting is an essential part of the FMADIO packet capture systems as packet capture is only the first step in the process of understanding your network traffic. We have released a small (but growing) library of commands to help integrate into your environment.

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MEASURING SWITCH LATENCY
Aaron Foo Aaron Foo

MEASURING SWITCH LATENCY

Ever wondered what latency your switch is running at? Its an often asked question when characterizing SDN devices and also extremely important for everything HFT. It sounds like a simple question, and with our Microburst Analyzer its extremely simple to get answers.

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スイッチレイテン解析
Aaron Foo Aaron Foo

スイッチレイテン解析

あなたの使っているスイッチのレイテンシを知っていますか?これはSDN(software defined networking: ソフトウェア定義ネットワーク)の特徴を述べる時によく聞かれる質問であり、HFT(high frequency trading:高頻度取引)ではどこでも非常に重要なことです。簡単な質問のように見えますし、私達のマイクロバースト・アナライザーを使えば答えを得るのは非常に簡単です。

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PACKET CAPTURE SNMP MONITORING
Aaron Foo Aaron Foo

PACKET CAPTURE SNMP MONITORING

When you have 10`s or 100`s of real (or virtual) servers it becomes quite a task to monitor and manage what their all doing. FMADIO 10G, 20G, 40G and 100G packet capture systems now support SNMP using the standard net-snmp package so you can easily track and monitor your systems.

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THERMALS OF 1U 20GBPS PACKET CAPTURE
Aaron Foo Aaron Foo

THERMALS OF 1U 20GBPS PACKET CAPTURE

The magic and ubiquity of image sensors over the last decade has been incredible, and its not only Megapixels of your camera but also sensing the non-visible light spectrum. Have been wanting to check the thermal footprint of our 20GbE and 10Gbe packet capture devices for a while now. After all our competition uses large and bulky 3U, 4U, 5U or more devices, our packet capture systems from 10G to 100G are all a compact 1U form factor. This compact and lightweight form factor makes thermal management and optimization absolutely critical.

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PACKET CAPTURE FILE SYSTEMS
Aaron Foo Aaron Foo

PACKET CAPTURE FILE SYSTEMS

One of the interesting and non-obvious problems of a packet capture system is engineering the underlying filesystem to store all data. You might think writing to a standard EXT4 / XFS / JFS / pick your favorite file system is enough. However this is a huge huge red flag, as there is no guarantee on the sustained write performance, which can result in packet loss.

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パケットキャプチャファイルシステム
Aaron Foo Aaron Foo

パケットキャプチャファイルシステム

パケットキャプチャシステムの興味深く不明確な問題のひとつはすべてのデータを保管するファイルシステムにあるエンジニアリングです。標準のEXT4 / XFS / JFS /の中から好きなファイルシステムを選べば良いと思うかもしれませんが、パケットロスをひき起こす書き込みパフォーマンスが持続する保証はないため、これは大変重大な赤信号です。

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DEBUGING ETHERNET CRC FCS ERRORS
Aaron Foo Aaron Foo

DEBUGING ETHERNET CRC FCS ERRORS

One of the great things about 10GbE, 40GbE and 100GbE packet capture is it captures everything, included network corruption! Errors can take the form of Ethernet Frame Check Sequence (FCS) which is a 32bit CRC calculated across the entire packets payload. This post discuss how we capture and some of the tools to help debug errors on the network typically seen on WAN links.

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イーサネットCRC FCSエラートラブルシューティング
Aaron Foo Aaron Foo

イーサネットCRC FCSエラートラブルシューティング

10GbE、20GbE、40GbE、100GbEパケットキャプチャの素晴らしい点のひとつはネットワーク破損を含めてすべてをキャプチャする事です!エラーは全体のパケットのペイロード全体で計算された32ビットのCRCであるイーサネットフレームチェックシーケンス(FCS)の形態をとります。この投稿ではWANリンクに良く見られるネットワークをどのようにキャプチャし、エラーをデバッグするツールをご紹介します。

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HOW TO GET EXCELLENT PRICING?
Aaron Foo Aaron Foo

HOW TO GET EXCELLENT PRICING?

We get asked alot, "why is your 10Gbps Packet capture price so good?". Almost all our clients have some disbelief about our prices. There`s a secret to our pricing and how we achieve such affordable packet capture systems. Its`s not magic just high quality engineering, we discuss the how`s and whys in this post.

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最高の値段を手に入れる方法は?
Aaron Foo Aaron Foo

最高の値段を手に入れる方法は?

弊社によく質問が来ます。「なぜあなた達の10Gbpsパケットキャプチャはそんなにお買い得ですか?」ほとんどのお客様が弊社の値段を信じられないようです。弊社の値段とそのようなお買い得なパケットキャプチャシステムを提供できるのには秘密があります。それは魔法ではなく高品質エンジニアリングです。この記事でその方法と理由をご説明します。

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20GBPS PACKET CAPTURE
Aaron Foo Aaron Foo

20GBPS PACKET CAPTURE

Finally our 20Gbps dual port 2x10G capture system is available! Its been quite a bit more work than expected as 30M Packets/Sec processing isn`t easy, but we`ve done it and open for orders.

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20GBPS パケットキャプチャ
Aaron Foo Aaron Foo

20GBPS パケットキャプチャ

ついに弊社の20Gbpsデュアルポート 2x10Gキャプチャシステムが利用可能になりました! 30M パケット/秒処理は簡単ではないので想定よりも多くの作業が発生しましたが、ついに完成し注文可能となりました。

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NETWORK ARCHITECTURE TO CAPTURE PACKETS
Aaron Foo Aaron Foo

NETWORK ARCHITECTURE TO CAPTURE PACKETS

Packet capture is good and all, but how exactly do you capture packets on a network ? There`s a range of approaches from Layer1 optical TAP`s to Smart SPAN protocols and everything in between. We dig into the various Pro`s and Con`s of each approach.

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パケットキャプチャのネットワークアーキテクチャ
Aaron Foo Aaron Foo

パケットキャプチャのネットワークアーキテクチャ

パケットキャプチャはとても便利ですが、あなたは具体的にネットワークのパケットをどのようにキャプチャしたいですか?レイヤ1光学タップからスマートSPANプロトコルやその中間といった様々なアプローチがあります。私達はそれぞれのアプローチに対する長所・短所を分析してみました。

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HOW TO VERIFY INTEL CPU IS GENUINE
Aaron Foo Aaron Foo

HOW TO VERIFY INTEL CPU IS GENUINE

All our production inventory is purchased via our trusted partners but for a R&D project we received not 1 but 2 fake CPU`s from Amazon.com. Still can`t believe it, especially since its not some random 3rd party seller but the seller was Amazon itself!

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LONG RUN SUSTAINED CAPTURE RATES
Aaron Foo Aaron Foo

LONG RUN SUSTAINED CAPTURE RATES

Our FMADIO10 and FMADIO20 products are unique by operating in a hybrid SSD / HDD mode. However the lower HDD sustained throughput reduces the sustained capture rate when used in continuous high bandwidth 24H / 7 capture mode. We dig deeper and understand what’s happening under the hood for long run capture and what the system limitations are.

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FPGA WITH YOUR COFFEE?
Aaron Foo Aaron Foo

FPGA WITH YOUR COFFEE?

Its an often used cliche "only in Japan" do you get XYZ, usually some sort of outrageous TV show, strange food or something worse. I`ve been here in Tokyo for long enough that nothing really surprises me these days but once in a while you find something that's pretty cool.

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マイクロバースト解析
Aaron Foo Aaron Foo

マイクロバースト解析

ネットワークマイクロバースト解析は問題のトラブルシューティング、ネットワークフローの理解、スループット/待ち時間の最適化という全てのネットワークトポロジーにとって重要です。FMADIO製品は強力な内臓マイクロバースト解析機を含み、あなたのマイクロバーストに対する疑問に答えるお手伝いをします。

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ANALYZING MICROBURSTS
Aaron Foo Aaron Foo

ANALYZING MICROBURSTS

Network microburst analysis is important for all network topologies to trouble shoot problems, understand network flow and optimization throughput/latency. FMADIO products have a powerful builtin microburst analyzer to assist and answer any microburst questions you can ask.

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