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I<$Zdqb$zDE7Ya1$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$R$"<<y&@(G^  0e0e     A@ AԔ 8c8c     ?1 d0u0@Ty2 NP'p<'pA)BCD|E||s " 0e@        @ABC DEEFGHIJK5%LMNOPQRSTUWYZ[ \]^_ `abN E5%  N E5%  N F   5%    !"?N@ABC DEFFGHIJK5%LMNOPQRSTUWYZ[ \]^_ `ab )uݒz@8STo 4@d@d@B 0ppp pdp-ppfp p{ppp= ʚ;6ʚ;<4!d!dl%F 0X<4ddddl%F 0X<4BdBdl%F 0X< g4;d;d@B 0Np, pph___PPT2001D<4X@u___PPT10U .4Arbor Networks.6? -O =E#Why Network Management is a FailureCraig Labovitz F#Why Network Management is a Failure$$Arbor Background Focus on tier-1/tier2 ISP and large enterprises/hosting Commercial persepctive on network management (though Arbor is not a network manegement company)(x3x 3,T 8  GWhy Network Managent has Failed   ,Not due abstraction Not due to 3d, 4d versus 5d Not technology (though that is also a major problem) Public relations Market does not value network management (e.g. concord 100M versus netscreen) No provider/enterprise budgets for managements ISP RFPs do not prioritize management (linecards, port density) Analysts hostile Asset management, SNMP not sexy. Plus you re supposed to have this already, right?0vP!Pv !> 5 tHIrony of Network ManagementArbor provides traffic engineering, asset tracking, market analysis, detection of failures (both security) But we re NOT a network management company (analyst story) We re a security company& 6IIrony of Network Management<Though no market demand, analyst recommendations or market valuation, gaping need for improvement Most outages not due to attacks, script kiddies, backhoes nor BGP problems (though much more fun to talk about) Upgrades Configuration management Four weeks around new year incredibly stable Internal studies/FTCS paperBZ"ZIZ"IJState of Network ManagementKFew providers have any idea what their network normally looks like Routing policies (regularly get into arguments) Traffic distributions Security policies (ask to turn on/off new firewall rule) Configuration Highly entrenched scripts and staff with vested interest in complexity How do you integrate with our OSS-? XCG5C  G5KWhy Network management so poor? Networks evolve rapidly Flood of information But really because tools and infrastructure support or poor. Why? No-one cares Not in ISP vendors rfps Large hosting interesting peering device choice Even simple things are suprisizingly difficulty SNMP is many, many things but not simple SNMP ifIndex polling vagueries between vendors and close to completely broken on new core router Story about disabling CPU polling Most management geared towards devices and not services And heh, getting the data (Netflow, Cflowd)xoPUP0PPdPo U 0dH : L+Too Much Information and of too low quality,,What do you do with 10,000 mrtg graphs showing abnormal traffic? IDS -> IPS -> SEMs -> NBADs Market moving towards wholistic view of network events (easier starting from whole and figure out pieces than reverse)P0 XMThe good and the badcSome things getting better Cookie-cutter network design and division of functionality (MPLS core, peering/customer PoP) Increasing focus on operations and management more visible part of RFPs Some things getting worse Loss of visibility (traceroute, ping in MPLS/OAM) Hidden failures. Determining causality is really, really hard (e.g. recent DNS failure)P >sE/ lP  ` 33fff3ff>?" dd@ v?dd@  \ n?" dd@   @@``PV     `   pH @`H @`  jl(  lV Fl S A"QP B l NL? ?"H   RClick to edit Master text styles Second level Third level Fourth level Fifth level!     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