*BEGIN GRAPHICS VERSION=442/420 ENCODING=7BIT ** "Creator" brian ** "Creation Date" Sun Apr 30 15:00:59 2000 ** "Creation Version" 4.42 (1021.500) ** "Revisor" brian ** "Last Modified" Fri May 5 19:51:15 2000 ** "Last Modified Version" 4.42 (1021.500) FONT "Times" "Zapf Dingbats" "Swiss" "Morewingbats" "Dutch" END FONT SESSION WIN_SIZE <11960 7894> STICKY ON AUTOGRID ON VIEW <0 0 0 1 1 0> PAGEWID 11000 PAGEHYT 8500 PRINTWID 11000 PRINTHYT 8500 PRINTLAND ON PRINTGUIDES <354 1050> SLIDE_STYLE <0 -1 1> BACKFILL <9 37 5 1000 0 0 0> LINEFILL <2 2 5 1000 0 0 0> SHADOW <1 0 15 15> FONT 2 REZ <1 928 928 -1444 -504> END SESSION SLIDE_MASTER S_EXT1 <104 84 9892 1923> S_EXT2 <104 2089 9892 7369> T_ATTR0 BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> END T_ATTR0 T_ATTR1 END T_ATTR1 S_ATTR0 PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 END S_ATTR0 S_ATTR1 END S_ATTR1 S_ATTR2 PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 END S_ATTR2 S_ATTR3 PARA <-500 1500 -500 1 1000 9 3 108> V_SPACE <28 333 0> SIZE 240000 END S_ATTR3 S_ATTR4 PARA <-500 2000 -500 1 1000 9 3 108> V_SPACE <28 306 0> SIZE 220000 END S_ATTR4 S_ATTR5 PARA <-500 2500 -500 1 1000 9 3 108> ITALICS ON END S_ATTR5 SLIDE_INFO SLIDE_STYLE <0 0 1> PAGE_BACKGD <1000 5 20 21> C_SCHEME <2 2 2 2 2 2 9 37 21 19 6 15 40 0 0 0 0 0 0 0 0 0 0 1> END SLIDE_INFO .GRP BACKFILL <1 0 0 0 0 0 0> LINEFILL <1 2 5 1000 0 0 0> SHADOW <6 0 15 15> PARA <0 0 0 0 1000 1 0 111> V_SPACE <250 250 0> FONT 0 SIZE 180000 ITALICS OFF L_SPACE 250 MARGINS <125 125 250 62> END .GRP END SLIDE_MASTER HANDOUT_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP END .GRP END HANDOUT_MASTER OUTLINE_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP END .GRP END OUTLINE_MASTER NOTES_MASTER N_EXT1 <250 250 7249 4875> N_EXT2 <250 5125 7249 9749> N_ATTR0 BACKFILL <1 1 0 0 0 0 0> LINEFILL <2 2 5 1000 0 0 0> SHADOW <1 0 15 15> PARA <0 0 0 0 1000 9 0 111> V_SPACE <28 250 0> FONT 4 MARGINS <0 0 0 0> END N_ATTR0 N_ATTR1 END N_ATTR1 N_ATTR2 PARA <0 500 0 0 1000 9 0 111> END N_ATTR2 N_ATTR3 PARA <0 1000 0 0 1000 9 0 111> END N_ATTR3 N_ATTR4 PARA <0 1500 0 0 1000 9 0 111> END N_ATTR4 N_ATTR5 PARA <0 2000 0 0 1000 9 0 111> END N_ATTR5 SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP BACKFILL <1 0 0 0 0 0 0> LINEFILL <1 2 5 1000 0 0 0> SHADOW <6 0 15 15> PARA <0 0 0 0 1000 1 0 111> V_SPACE <250 250 0> FONT 0 MARGINS <125 125 250 62> END .GRP END NOTES_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <0 1 2 3 3> END SLIDE_INFO PICTURE .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <1 2 0 0> T_POS <104 2089 9892 7369> .TXT AT (978,3549) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> LINEFILL <2 2 5 1000 0 0 0> SHADOW <1 0 15 15> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> FONT 2 SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-46 448> T_PNTS (0,448)(0,0)(8021,0)(8021,580)(0,580)(0,448)(8021,448) H_SPACE 9789 .STR "Dynamic Routing and OSPF" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (978,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-23 448> T_PNTS (-2,446)(-2,-2)(8018,-2)(8018,578)(-2,578)(-2,446)(8018,446) .STR "Static and Dynamic Routing" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (94,2205) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(8884,-2)(8884,3062)(-2,3062)(-2,324)(8884,324) .STR "Static routing is a simplistic approach" .STR "\nShortcomings:" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tCumbersome to configure" .STR "\n\tCannot adapt to link/node failures, addition of new nodes a nd links" .STR "\n\tDoesn't scale to large networks" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nSolution: Dynamic Routing" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (1387,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-46 448> T_PNTS (-2,446)(-2,-2)(7239,-2)(7239,459)(-2,459)(-2,446)(7239,446) .STR "Desirable Characteristics" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(9068,-2)(9068,4296)(-2,4296)(-2,315)(9068,315) .STR "Automatically detect and adapt to network topology changes" .STR "\nOptimal routing" .STR "\nScalability" .STR "\nRobustness" .STR "\nSimplicity" .STR "\nSpeed of convergence" .STR "\nSome control of routing choices (e.g. which links we prefer t o use)" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (656,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (-1,446)(-1,-2)(8659,-2)(8659,578)(-1,578)(-1,446)(8659,446) .STR "Convergence - Why do I care?" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (94,2205) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(9282,-2)(9282,3330)(-2,3330)(-2,324)(9282,324) .STR "Convergence is when all the routers have the same routing infor mation" .STR "\nWhen a network is not converged, there is network downtime" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tPackets don't get to where they are supposed to be going: r outing loops, black holes" .STR "\n\tOccurs when there is a change in the status of a router or link" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (253,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-109 448> T_PNTS (-2,446)(-2,-2)(9676,-2)(9676,1185)(-2,1185)(-2,446)(9676,446) .STR "Other Interior Gateway Protocols (IGPs)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(7634,-2)(7634,3486)(-2,3486)(-2,315)(7634,315) .STR "RIP" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tLots of scaling problems" .STR "\n\tRIPv1 is classful and officially obsolete" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nEIGRP" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tProprietry (Cisco only)" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nIS/IS" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tThe forerunner of OSPF" .STR "\n\tMultiprotocol (OSPF is IP only)" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2413,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-3 448> T_PNTS (-1,446)(-1,-2)(5128,-2)(5128,578)(-1,578)(-1,446)(5128,446) .STR "Why not use RIP?" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (247,1432) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(9058,-2)(9058,4907)(-2,4907)(-2,315)(9058,315) .STR "Distance Vector algorithm" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tListen to neighboring routes" .STR "\n\tInstall all routes in table, lowest hop-count wins" .STR "\n\tAdvertise all routes in table" .STR "\n\tVery simple" .STR "\n\tVery stupid" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nBroadcasts everything (not scalable)" .STR "\nMetric is hop-count only" .STR "\nInfinity of 16 (not large enough)" .STR "\nSlow convergence (routing loops)" .STR "\nPoor robustness" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (4193,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (-1,446)(-1,-2)(1617,-2)(1617,459)(-1,459)(-1,446)(1617,446) .STR "OSPF" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (94,2205) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(8462,-2)(8462,1839)(-2,1839)(-2,324)(8462,324) .STR "Open Shortest Path First" .STR "\nDynamic IGP (Interior Gateway Protocol)" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tUse within your own network" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nLink state algorithm" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <0 1 2 3 3> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 1 0 0> T_POS <104 84 9892 1923> .TXT AT (2296,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-23 448> T_PNTS (-2,445)(-2,-3)(5407,-3)(5407,458)(-2,458)(-2,445)(5407,445) .STR "Shortest Path First" .POL AT (2250,2750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (2250,3000) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER TXTXYOFF <0 0> PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) H_SPACE 0 .STR SIZE 240000 "A" .POL AT (6500,2750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (6500,3000) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "B" .POL AT (2250,5250) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (2250,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "C" .POL AT (6500,5250) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (6500,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "D" .LINE AT (3500,3110) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 42 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(3000,0) .LINE AT (3500,5610) RECOLOR ON PNTS (0,0)(3000,0) .LINE AT (2860,3500) RECOLOR ON PNTS (0,0)(0,1750) .LINE AT (7110,3500) RECOLOR ON PNTS (0,0)(0,1750) .LINE AT (3500,3500) RECOLOR ON PNTS (0,0)(3000,1750) .TXT AT (4997,4017) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-32 232> T_PNTS (0,232)(0,0)(323,0)(323,239)(0,239)(0,232)(323,232) .STR L_SPACE 250 "15" .TXT AT (4999,2748) RECOLOR ON L_SPACE 333 TXTXYOFF <-8 232> T_PNTS (0,232)(0,0)(162,0)(162,239)(0,239)(0,232)(162,232) .STR L_SPACE 250 "3" .TXT AT (2998,4253) RECOLOR ON L_SPACE 333 TXTXYOFF <-9 225> T_PNTS (0,225)(0,0)(165,0)(165,226)(0,226)(0,225)(165,225) .STR L_SPACE 250 "4" .TXT AT (7248,4274) RECOLOR ON L_SPACE 333 T_PNTS (0,225)(0,0)(165,0)(165,226)(0,226)(0,225)(165,225) .STR L_SPACE 250 "4" .TXT AT (4998,5747) RECOLOR ON L_SPACE 333 TXTXYOFF <-14 225> T_PNTS (0,225)(0,0)(159,0)(159,226)(0,226)(0,225)(159,225) .STR L_SPACE 250 "7" .TXT AT (3679,1503) RECOLOR ON BOLD ON L_SPACE 333 TXTXYOFF <-23 244> T_PNTS (0,244)(0,0)(2662,0)(2662,251)(0,251)(0,244)(2662,244) .STR L_SPACE 250 "Metric: Link Cost" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2069,245) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-48 448> T_PNTS (-2,446)(-2,-2)(5865,-2)(5865,578)(-2,578)(-2,446)(5865,446) H_SPACE 9789 .STR "Link State Algorithm" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(9217,-2)(9217,4484)(-2,4484)(-2,315)(9217,315) .STR "Each router maintains a database containing map of the whole to pology" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tLinks" .STR "\n\tState (including cost)" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nAll routers have the same information" .STR "\nAll routers calculate the best path to every destination" .STR "\nAny link state changes are flooded across the network" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\t\"Global spread of local knowledge\"" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (305,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-128 437> T_PNTS (-2,435)(-2,-2)(9592,-2)(9592,1178)(-2,1178)(-2,435)(9592,435) .STR "Note: Routing is not the same as Forwarding" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(8676,-2)(8676,3402)(-2,3402)(-2,315)(8676,315) .STR "\nForwarding: passing packets along to the next hop" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tThere is only one forwarding table" .STR "\n\tJust has prefix and next-hop info" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nRouting: populating the forwarding table" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tYou might have multiple routing databases - e.g. both OSPF and BGP" .STR "\n\tRouting databases have more information" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <0 1 2 3 3> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 1 0 0> T_POS <104 84 9892 1923> .TXT AT (1526,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-46 437> T_PNTS (-2,435)(-2,-2)(6944,-2)(6944,567)(-2,567)(-2,435)(6944,435) .STR "Routing and Forwarding" .RECT AT (3750,4750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(2500,0)(2500,1500)(0,1500)(0,0) .LINE AT (3250,2750) RECOLOR ON THICKNESS 42 R_ARROW 1 PNTS (0,0)(1750,750) .LINE AT (4999,2251) RECOLOR ON PNTS (0,0)(0,1250) .LINE AT (4998,2750) RECOLOR ON PNTS (2002,0)(0,751) .LINE AT (4999,3501) RECOLOR ON PNTS (0,0)(0,1250) .ELL AT (2000,2000) RECOLOR ON BACKFILL <37 37 5 1000 0 0 0> THICKNESS 1 R_ARROW 0 PNTS (0,0)(1500,0)(1500,1000)(0,1000)(0,0) .ELL AT (4250,1250) RECOLOR ON PNTS (0,0)(1500,0)(1500,1000)(0,1000)(0,0) .ELL AT (6750,2000) RECOLOR ON PNTS (0,0)(1500,0)(1500,1000)(0,1000)(0,0) .TXT AT (2000,2280) RECOLOR ON BACKFILL <21 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 BOLD ON HOR_JUST CENTER L_SPACE 333 MARGINS <166 166 333 83> TXTXYOFF <0 0> PNTS (0,0)(1500,0)(1500,500)(0,500)(0,0) H_SPACE 0 .STR L_SPACE 250 MARGINS <125 125 250 62> "OSPF" .TXT AT (4250,1530) RECOLOR ON L_SPACE 333 MARGINS <166 166 333 83> PNTS (0,0)(1500,0)(1500,500)(0,500)(0,0) .STR L_SPACE 250 MARGINS <125 125 250 62> "BGP" .TXT AT (6750,2280) RECOLOR ON L_SPACE 333 MARGINS <166 166 333 83> PNTS (0,0)(1500,0)(1500,500)(0,500)(0,0) .STR L_SPACE 250 MARGINS <125 125 250 62> "Static" .TXT AT (3500,5190) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> SIZE 180000 BOLD OFF PNTS (0,0)(3000,0)(3000,750)(0,750)(0,0) .STR SIZE 240000 BOLD ON "Forwarding" .STR "\nTable" .TXT AT (1000,6751) RECOLOR ON V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT PNTS (0,0)(8000,0)(8000,750)(0,750)(0,0) .STR "On Cisco, if the same prefix is received from multiple protocol s, the \"administrative distance\" is used to choose between the m" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (1674,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-25 448> T_PNTS (-2,445)(-2,-3)(6625,-3)(6625,573)(-2,573)(-2,445)(6625,445) H_SPACE 9789 .STR "OSPF: How it works (1)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (87,2208) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,314)(-2,-3)(8297,-3)(8297,2633)(-2,2633)(-2,314)(8297,314) .STR "\"Hello\" packets sent periodically on all OSPF-enabled interfa ces" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\t" .STR "become \"neighbors\"" .STR "\n\testablishes that link can carry data" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nAdjacencies (virtual point-to-point links) formed between " .STR ITALICS ON "some" .STR ITALICS OFF " neighbors" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2708,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 437> T_PNTS (-2,435)(-2,-2)(4579,-2)(4579,563)(-2,563)(-2,435)(4579,435) .STR "How it works (2)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (94,2205) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(9001,-2)(9001,3191)(-2,3191)(-2,324)(9001,324) .STR "Once an adjacency is established, trade information with your n eighbor" .STR "\nTopology information is packaged in a \"link state announceme nt\"" .STR "\nAnnouncements are sent ONCE, and only updated if there's a ch ange (or every 30 minutes)" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2708,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 437> T_PNTS (-2,435)(-2,-2)(4579,-2)(4579,563)(-2,563)(-2,435)(4579,435) .STR "How it works (3)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2203) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(9152,-2)(9152,3059)(-2,3059)(-2,324)(9152,324) .STR "Each router sends Link State Announcements (LSAs) over all adja cencies" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tLSAs describe router's links, interfaces and state" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nEach router receives LSAs, adds them into its database, and p asses the information along to its neighbors" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2708,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 437> T_PNTS (-2,435)(-2,-2)(4579,-2)(4579,563)(-2,563)(-2,435)(4579,435) .STR "How it works (4)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(8364,-2)(8364,2300)(-2,2300)(-2,315)(8364,315) .STR "Each router builds identical link-state database" .STR "\nRuns SPF algorithm on the database to build SPF tree" .STR "\nForwarding table built from SPF tree" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2708,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 437> T_PNTS (-2,435)(-2,-2)(4579,-2)(4579,563)(-2,563)(-2,435)(4579,435) .STR "How it works (5)" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(6780,-2)(6780,1652)(-2,1652)(-2,315)(6780,315) .STR "When change occurs:" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tBroadcast change" .STR "\n\tAll routers run SPF algorithm" .STR "\n\tInstall output into forwarding table" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (4007,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 448> T_PNTS (0,448)(0,0)(1993,0)(1993,461)(0,461)(0,448)(1993,448) .STR "HELLO" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (87,2199) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (0,326)(0,0)(9206,0)(9206,3647)(0,3647)(0,326)(9206,326) .STR "Broadcast* HELLO on network segment" .STR "\nReceive ACK" .STR "\nEstablishes 2-way communication" .STR "\nRepeat periodically" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tDefault: HELLO sent every 10 seconds" .STR "\n\tDefault: if no HELLO heard for 40 seconds, link is assumed to be dead" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nNow establish adjacencies" .TXT AT (246,6747) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 TXTXYOFF <1 181> T_PNTS (0,181)(0,0)(6818,0)(6818,486)(0,486)(0,181)(6818,181) H_SPACE 0 .STR "* Actually uses Multicast addresses (224.0.0.9, 224.0.0.10) so\n that non-OSPF devices can ignore the packets" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2294,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-6 448> T_PNTS (0,448)(0,0)(5390,0)(5390,578)(0,578)(0,448)(5390,448) H_SPACE 9789 .STR "The HELLO packet" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (743,4962) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <28 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <-491 278> T_PNTS (0,278)(0,0)(3970,0)(3970,2032)(0,2032)(0,278)(3970,278) .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tRouter priority" .STR "\n\tHello interval" .STR "\n\tRouter dead interval" .STR "\n\tNetwork mask" .STR "\n\tList of neighbors" .POL AT (4713,5473) RECOLOR ON BACKFILL <9 37 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(287,277)(287,777)(37,1027) .TXT AT (5204,5841) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-3 239> T_PNTS (0,239)(0,0)(2706,0)(2706,245)(0,245)(0,239)(2706,239) H_SPACE 0 .STR L_SPACE 250 "These must match" .RECT AT (6750,3500) RECOLOR ON BACKFILL <15 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 MARGINS <125 125 250 62> PNTS (0,0)(500,0)(500,500)(0,500)(0,0) .RECT AT (3250,3500) RECOLOR ON PNTS (0,0)(500,0)(500,500)(0,500)(0,0) .RECT AT (5000,1250) RECOLOR ON PNTS (0,0)(500,0)(500,500)(0,500)(0,0) .LINE AT (3750,3000) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 42 PNTS (0,500)(750,0) .LINE AT (6000,3000) RECOLOR ON PNTS (750,500)(0,0) .LINE AT (5250,1750) RECOLOR ON PNTS (0,0)(0,750) .ELL AT (4250,2500) RECOLOR ON BACKFILL <20 37 5 1000 0 0 0> PNTS (0,0)(2000,0)(2000,750)(0,750)(0,0) .LINE AT (5085,1878) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 28 R_ARROW 1 PNTS (0,0)(0,500) .LINE AT (3737,3013) RECOLOR ON PNTS (0,279)(392,0) .LINE AT (6384,3034) RECOLOR ON PNTS (392,279)(0,0) .TXT AT (4099,2009) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 R_ARROW 0 BOLD ON MARGINS <0 0 0 0> TXTXYOFF <-18 183> T_PNTS (0,183)(0,0)(814,0)(814,189)(0,189)(0,183)(814,183) .STR "HELLO" .TXT AT (2986,2948) RECOLOR ON T_PNTS (0,183)(0,0)(814,0)(814,189)(0,189)(0,183)(814,183) .STR "HELLO" .TXT AT (6713,3025) RECOLOR ON T_PNTS (0,183)(0,0)(814,0)(814,189)(0,189)(0,183)(814,183) .STR "HELLO" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> BOLD OFF MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (3534,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-43 437> T_PNTS (-2,435)(-2,-2)(2945,-2)(2945,567)(-2,567)(-2,435)(2945,435) H_SPACE 9789 .STR "Neighbors" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (94,2214) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(8087,-2)(8087,1412)(-2,1412)(-2,315)(8087,315) .STR "Bi-directional communication" .STR "\nResult of OSPF hello packets" .STR "\nNeed not exchange routing information" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2495,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-4 448> T_PNTS (-2,445)(-2,-3)(4958,-3)(4958,577)(-2,577)(-2,445)(4958,445) .STR "Who is adjacent?" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2212) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 317> T_PNTS (-2,315)(-2,-2)(8228,-2)(8228,3596)(-2,3596)(-2,315)(8228,315) .STR "\"Adjacent\" neighbors exchange routing information" .STR "\nNot all neighbors are adjacent" .STR "\nOn a point-to-point link" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\teveryone" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nOn broadcast medium" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tnot everyone" .STR "\n\twhy?" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <0 1 2 3 3> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 1 0 0> T_POS <104 84 9892 1923> .TXT AT (1994,251) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-46 437> T_PNTS (-2,435)(-2,-2)(6019,-2)(6019,567)(-2,567)(-2,435)(6019,435) .STR "Broadcast neighbors" .POL AT (2250,2750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (2250,3000) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER TXTXYOFF <0 0> PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) H_SPACE 0 .STR SIZE 240000 "A" .POL AT (6500,2750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (6500,3000) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "B" .POL AT (2250,5250) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (2250,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "C" .POL AT (6500,5250) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (6500,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "D" .TXT AT (2996,1500) RECOLOR ON BOLD ON HOR_JUST LEFT L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-14 244> T_PNTS (0,244)(0,0)(3967,0)(3967,317)(0,317)(0,244)(3967,244) .STR L_SPACE 250 "Order of N^^2 adjacencies" .LINE AT (3500,3000) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 R_ARROW 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF MARGINS <125 125 250 62> PNTS (0,0)(3000,0) .LINE AT (3500,3250) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,0)(3000,0) .LINE AT (3500,5500) RECOLOR ON L_ARROW 0 R_ARROW 1 PNTS (0,0)(3000,0) .LINE AT (3500,5750) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,0)(3000,0) .LINE AT (2750,3500) RECOLOR ON L_ARROW 0 R_ARROW 1 PNTS (0,0)(0,1750) .LINE AT (3000,3500) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,0)(0,1750) .LINE AT (7000,3500) RECOLOR ON L_ARROW 0 R_ARROW 1 PNTS (0,0)(0,1750) .LINE AT (7250,3500) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,0)(0,1750) .LINE AT (3250,3500) RECOLOR ON L_ARROW 0 R_ARROW 1 PNTS (0,0)(3250,1750) .LINE AT (3500,3500) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,0)(3250,1750) .LINE AT (3250,3500) RECOLOR ON L_ARROW 0 R_ARROW 1 PNTS (0,1750)(3250,0) .LINE AT (3500,3500) RECOLOR ON L_ARROW 1 R_ARROW 0 PNTS (0,1750)(3250,0) END PICTURE NOTES .GRP L_ARROW 0 PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (2302,256) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-46 437> T_PNTS (-2,435)(-2,-2)(5394,-2)(5394,446)(-2,446)(-2,435)(5394,435) H_SPACE 9789 .STR "Broadcast medium" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (92,2203) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 326> T_PNTS (-2,324)(-2,-2)(8882,-2)(8882,3339)(-2,3339)(-2,324)(8882,324) .STR "Select a neighbor: Designated Router (DR)" .STR "\nAll routers become adjacent to DR" .STR "\nExchange routing information with the DR" .STR "\nDR updates all the other neighbors" .STR "\nScales" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tAdjacencies reduced from N^^2 to 2N" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nBackup Designated Router (BDR)" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <0 1 2 3 3> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 1 0 0> T_POS <104 84 9892 1923> .TXT AT (1806,236) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-132 448> T_PNTS (0,448)(0,0)(6581,0)(6581,1191)(0,1191)(0,448)(6581,448) .STR "LSAs propagate along adjacencies" .POL AT (2250,2750) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .POL AT (6500,2750) RECOLOR ON PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .POL AT (2250,5250) RECOLOR ON PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (2250,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER TXTXYOFF <0 0> PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) H_SPACE 0 .STR SIZE 240000 "DR" .POL AT (6500,5250) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(1250,0)(1250,750)(0,750)(0,0) .TXT AT (6500,5500) RECOLOR ON BACKFILL <2 2 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> HOR_JUST CENTER PNTS (0,0)(1250,0)(1250,500)(0,500)(0,0) .STR SIZE 240000 "BDR" .LINE AT (3500,5620) RECOLOR ON BACKFILL <9 37 5 1000 0 0 0> THICKNESS 42 L_ARROW 1 R_ARROW 1 V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT PNTS (0,0)(3000,0) .LINE AT (2880,3500) RECOLOR ON PNTS (0,0)(0,1750) .LINE AT (7130,3500) RECOLOR ON THICKNESS 1 STYLE 1 PNTS (0,0)(0,1750) .LINE AT (3500,3500) RECOLOR ON PNTS (0,0)(3000,1750) .LINE AT (3500,3500) RECOLOR ON THICKNESS 42 STYLE 0 PNTS (0,1750)(3000,0) END PICTURE NOTES .GRP THICKNESS 1 L_ARROW 0 R_ARROW 0 PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (104,84) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <104 84 9892 1923> .TXT AT (962,243) RECOLOR ON TEMPLATED ON BACKFILL <2 2 0 0 0 0 0> PARA <0 0 0 0 1000 9 0 111> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (0,448)(0,0)(8076,0)(8076,461)(0,461)(0,448)(8076,448) H_SPACE 9789 .STR "Other nice features of OSPF" .TMP AT (104,2089) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <104 2089 9892 7369> .TXT AT (81,2197) RECOLOR ON TEMPLATED ON PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <8 321> T_PNTS (0,321)(0,0)(9223,0)(9223,4720)(0,4720)(0,321)(9223,321) .STR "Authentication (optional)" .STR "\nEqual-cost multipath" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tmore than one \"best\" path - share traffic" .STR PARA <-500 500 -500 1 1000 9 3 108> V_SPACE <56 444 0> SIZE 320000 "\nProper classless support (CIDR)" .STR "\nMultiple areas" .STR PARA <-500 1000 -500 1 1000 9 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tFor very large networks (>150 routers)" .STR "\n\tAggregate routes across area boundaries" .STR "\n\tKeep route flaps within an area" .STR "\n\tProper use of areas reduce bandwidth and CPU utilisation" .STR "\n\tBackbone is Area 0" END PICTURE NOTES .GRP BACKFILL <9 37 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES *END GRAPHICS