Transcription
Burning Bridges - Routing YourBridged WISP Network WithMikroTik855-WISP-PRO
Introduce Yourself Name Company & position there855-WISP-PRO
About Me Steve Discher Live in College Station, Texas1987 graduate of Texas A&M University, in IT formore than 20 yearsFormer WISP owner from 2004 to 2010Online distribution company, ISP SuppliesConduct MikroTik and Ubiquiti trainingwww.mywisptraining.com855-WISP-PRO
About ISP Supplies Entering our third year of business. Also sell custom built products includingsilkscreened indoor and outdoor enclosures, RFshielding and antennasWe sell MikroTik, Ubiquiti, Cambium and all ofthe accessories.855-WISP-PRO
Master MikroTikStocking DistributorCurrent 7th largest insales in the USA(started at number 20!)855-WISP-PRO
Largest Problem FacingGrowing WISP’sNumber one consulting question Iam asked is how do I convert mybridged wireless network to arouted one?855-WISP-PRO
One Size Fits AllApproach There is none. Today, establish an attack plan using generalprocesses. You will need to adapt to your particularscenario.855-WISP-PRO
Today’s Presentation1. Why is excessive bridging a problem?2. Routing - the solution to excessively bridgednetworks.3. Network redesign, topology, IP planning androuting.4. Protocols to be used.5. Rollout plan.6. Equipment selection.855-WISP-PRO
The ProblemWhy are bridged wirelessnetworks difficult to scale?855-WISP-PRO
Network Organic Growth and Evolution855-WISP-PRO
Network Organic Growth and Evolution855-WISP-PRO
Network Organic Growth and Evolution855-WISP-PRO
Network Organic Growth and Evolution855-WISP-PRO
Network Organic Growth and Evolution855-WISP-PRO
Large Broadcast DomainSomewhere around 300 customers on the averagebroadcast traffic reaches an unmanageable level855-WISP-PRO
Broadcasts Broadcasts are a necessary part of an Ethernetnetwork Switches use a process called “flood” and“learn” and then switch packets based onlookup tables, those entries in the lookuptables age out, then they flood again As network grows, lookup tables get too large,constantly flushed, once again broadcasts areflooded855-WISP-PRO
A single broadcast fromsingle customerBroadcast Traffic in a Bridged Network855-WISP-PRO
Broadcast Traffic in a Bridged Network855-WISP-PRO
Broadcast Traffic in a Bridged Network855-WISP-PRO
Broadcast Traffic in a Bridged Network855-WISP-PRO
Broadcast Traffic in a Bridged Network855-WISP-PRO
Broadcast Traffic in a Bridged Network
One broadcast from one customer utilizesevery wireless device in our infrastructure! Broadcast traffic is retransmitted by AP’s andback-hauls thereby wasting valuable networkresources855-WISP-PRO
The Solution Routing, adding routers into the network More efficiently utilize resources by allowing you totransmit only necessary traffic across links it needsto cross Utilize traffic shaping and customer rate controlsWhy? Routers block broadcast traffic, reduce thesize of the collision domainOffload workload like NAT to less utilized devicescloser to the network edge855-WISP-PRO
The Solution Adding routers can increase security by theaddition of firewalls Prevent Layer 2 switch loops Prevent rogue DHCP servers from infiltratingthe entire network Increase the scalability of the networkPrevent customer viruses from taking yournetwork down855-WISP-PRO
The Solution Simplify troubleshooting Allow the creation of redundancy andfailover855-WISP-PRO
The SolutionResistance is futile!855-WISP-PROWith so manybenefits fromrouting over bridgingwhy do we resist?
Routing vs Bridging Bridging is faster, easier to learn especiallyat first. Using routers requires me to learn routing. Using routers requires me to learnsubnetting. Administration will be more difficult.855-WISP-PRO
Network Redesign Redesigning a bridged n slide.Rollout Plan855-WISP-PRO
66.76.13.20/30First Tower Deployment855-WISP-PRO
66.76.13.20/3066.76.13.16/30Second Tower Deployment855-WISP-PRO
66.76.13.20/3066.76.13.16/30Third Tower Deployment.855-WISP-PRO
Plan Rollout Process can be tedious, require somecoordination with crews at head end and tower OSPF will take care of routing as AP’s are rolledover from switch to router DHCP or PPPoE will take care of customeraddresses and rate limits Once entire network is rolled over, QOS canbe added later855-WISP-PRO
Equipment Selection Specific equipment selected depends onwork load, number of physical portrequired and budget Examples855-WISP-PRO
Head End RouterGood 445GoodBetter 395 495Thousands of Customers855-WISP-PRO
Head End RouterBest 955Many Thousands of Customers855-WISP-PRO
Tower RouterGoodBetter 159 199Less than 120 Customers855-WISP-PROBest 240
Small Tower RouterGoodBetter 99 13020 or Less Customers855-WISP-PRO
Summary Routed networks are infinitely scalable, bridgednetworks die at about 300 customers Routing your network requires a plan, IP plan,network layout and coordinated rollout Routed networks will require knowledge of OSPF,DHCP, Radius, PPPoE and possibly BGP later Once network is routed, roll out traffic shaping/QOS Product recommendations855-WISP-PRO
Products inPresentation MikroTik routers IP Plan (http://iptrack.sourceforge.net) Cobian Backup, free auto FTP client tobackup your routers Integrated radius based billing solution,Platypus, DMA Softlab, Freeside, others?855-WISP-PRO
Get Trained MikroTik / Ubiquiti training monthly: MikroTik MTCINE Dallas, Feb 5-8 MikroTik MTCNA, College Station, Feb11-13 Ubiquiti airMAX Training, Houston, March5-7855-WISP-PRO
Questions?855-WISP-PRO
Thank You855-WISP-PRO
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About Me Steve Discher 1987 graduate of Texas A&M University, in IT for more than 20 years Live in College Station, Texas Former WISP owner from 2004 to 2010 Online distribution company, ISP Supplies Conduct MikroTik and Ubiquiti training www.mywisptraining.com 855-WISP-PRO
