Category Archives: Networking

SpeedMeter

SpeedMeter.de – Dein Internet DSL Speedtest.

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How to Calculate TCP throughput for long distance WAN links

How to Calculate TCP throughput for long distance WAN links. Formula to Calculate TCP throughput   TCP-Window-Size-in-bits / Latency-in-seconds = Bits-per-second-throughput   So lets work through a simple example. I have a 1Gig Ethernet link from Chicago to New York … Continue reading

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How to add DHCP scope option on Window Server for Nortel IP phones

How to add DHCP scope option on Window Server for Nortel IP phones.

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tcpdump Tutorial

A Tcpdump Tutorial and Primer   tcpdump is the premier network analysis tool for information security professionals. Having a solid grasp of this über-powerful application is mandatory for anyone desiring a thorough understanding of TCP/IP. Many prefer to use higher … Continue reading

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Juniper SRX PPPoE Configuration Example

Juniper Networks – SRX Getting Started – PPPoE Configuration Examples – Knowledge Base. This article provides Point-to-Point over Ethernet (PPPoE) configuration examples. Basic PPPoE Configuration Example The following example illustrates a basic PPPoE configuration. interfaces { fe-0/0/5 { unit 0 … Continue reading

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PacNOG2 ISP/IXP Workshops – BGP & OSPF

Index of /workshops/2006/PacNOG2/track2/routing. — BGP Multihoming Techniques Multihoming-1up.pdf Troubleshooting BGP a1-1up.pdf Routing Basics a2-1up.pdf Introduction to OSPF a3-1up.pdf Deploying OSPF for ISPs b0-1up.pdf Introduction to BGP b1-1up.pdf BGP Attributes and Policy Control b2-1up.pdf BGP Scaling Techniques b3-1up.pdf BGP Best Current … Continue reading

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Vyatta – Hub And Spoke – OSPF over GRE over IPSEC

Vyatta – Hub And Spoke – OSPF over GRE over IPSEC.   MSP-R1 – Set Up Interfaces: interfaces { ethernet eth0 { address 213.111.222.1/24 description INTERNET duplex auto firewall { in { name WAN_IN } local { name VYATTA_IN } … Continue reading

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