Coderfaire Data Networking for Developers

D*ata Networking f*or D*evelopers

About m*eIT Infrastructure ArchitectCCSWorld’s Oldest InternFoxycartjason@jasonamyers.comwww.binarydelusions.com

O*verview• Why this is so important to you?• Networking Overview• Firewalls• Load Balancers• Caching• Data Flow Mapping• Application Performance Management• Snifﬁng for Troubleshooting

Why is this So Important?• n-Tier Architectures• RESTful APIs• Service Oriented Architectures• HATEOAS

Frame Dest SourceData Link Ethernet SOF Len Preamble Data FCS MAC MAC Packet Source Dest IP HCSNetwork Opt Pad Misc Data IP IP Segment Source DestTransport TCP Opt Pad Misc Data CS Port Port An Ethernet Frame

Firewalls• Packet Filtering • Closed from outside • Allow return trafﬁc to a request from an inside source

Firewalls: Allowing Traffic f*rom O*utside• “Poking Holes”• Access Control List Entries (Network)• Network Address Translation (NAT) (Transport)• Source, Destination, Protocol, Port

ACL NAT Firewall WebServiceDatabase Load Balancer Firewall P*ositioning

Firewalls: Deeper• Stateful Inspection• Intrusion Prevention• Application• Next Generation

The D*ecesion P*oint

L*oad Balancers• Local/Global• VIPs• Server Farms• Real Servers• SSL Ofﬂoading• Stickiness

Server Farm Firewall WebService VIPDatabase Load Balancer Firewall P*ositioning

L*oad Balancers: Types• Response Time• Bandwidth• Hashes (address, content, cookie, head, url)• Connection Count• Least Loaded (health)• Round Robin

Caching• Reducing Expensive Calls• Results vary by architecture... Greatly• Changing rapidly

Caching: Where• Content Delivery Networks• Hosts (FusionIO)• Content Network Devices (Switches, Load Balancers)• SANs (FastCache)

Firewall WebServiceDatabase Load Balancer D*ata Flow

D*ata Flow: Sniffed

Sniffing D*emo

Application P*erformance Monitoring

New Relic

Transaction Tracing

App Server Stats

D*ashboarding

Who is Responsible?

Make i*t Simple

QuestionsRate me: https://joind.in/6722 Follow me: @jasonamyers

Coderfaire Data Networking for Developers

by Jason Myers on Aug 24, 2012

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