Begin %I Elli%I b 655350 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBg%I p1 SetP%I t[ 0.5 -0 -0 0.5 289.5 129.5 ] concat%I173 605 32 32 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 369.5 437.5 ] concat%I[(NI)] TextEndEnd %I eopBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t uBegin %I Elli%I b 655350 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBg%I p1 SetP%I t[ 0.5 -0 -0 0.5 289.5 225.5 ] concat%I173 605 32 32 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 372 533 ] concat%I[(J)] TextEndEnd %I eopBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t uBegin %I Elli%I b 655350 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBg%I p1 SetP%I t[ 0.5 -0 -0 0.5 401.5 177.5 ] concat%I173 605 32 32 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 480 484.5 ] concat%I[(PP)] TextEndEnd %I eopBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 346 595 ] concat%I[(\(*,G\) Join)([Refresh ET])] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 506 500 ] concat%I[(\(*,G\) Prune)] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 432.98 419.497 ] concat%I[(ET Expires)] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 401 511 ] concat%I[(\(*,G\) Join)([Refresh ET])([Cancel PPT])] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 348.008 502.503 ] concat%I[(ET )(Expires)] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 377.5 473 ] concat%I[(\(*,G\) Join)([Start ET])] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 350.5 392 ] concat%I[(\(*,G\) Prune)] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 419 546.5 ] concat%I[(\(*,G\) Prune)([Start PPT])] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 402.495 447.502 ] concat%I[(PPT Expires)([Send PruneEcho])] TextEndBegin %I BSpl%I b 655350 0 1 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBg%I p0 SetP%I t[ 0.500173 -0 -0 0.500173 343.119 281.097 ] concat%I 3310 371329 20787 2773 BSpl%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 424.99 405 ] concat%I[(Stop being DF)] TextEndBegin %I BSpl%I b 655350 0 1 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBg%I p0 SetP%I t[ 0.500173 -0 -0 0.500173 245.585 262.591 ] concat%I 3228 531143 428229 3513 BSpl%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -adobe-helvetica-medium-r-normal--10-100-75-75-p-56-iso8859-1Helvetica 10 SetF%I t[ 1 0 0 1 309.498 483.994 ] concat%I[(Stop)(being DF)] TextEndEnd %I eopshowpageend%%EndDocumentend PEND/F1 11/Times-Bold@0 SF(Figur)172.295 319 Q 2.75(e1)-.198 G 2.75(:D)-2.75 G -.11(ow)-2.75 G(nstr).11 E(eam gr)-.198 E(oup per)-.198 E(-interface state-machine)-.407 E F0(In tab)72 341.6 Q(ular form, the group per)-.22 E(-interf)-.22 E(ace state-machine is:)-.11 E .44 LW 503.999 352.35 72 352.35 DL F1(Ev)276.295 362.6 Q(ent)-.11E 503.999 367.35 142.447 367.35 DL(Pr)78.57 389.6 Q .33 -.165(ev S)-.198H(tate).165 E(Recei)153.302 377.6 Q -.11(ve)-.11 G -.165(Jo)153.302390.6 S(in\(*,G\)).165 E(Recei)233.193 377.6 Q -.11(ve)-.11 G(Prune\(*,G\))233.193 390.6 Q(Prune)305.758 377.6 Q -.22(Pe)305.758390.6 S(nding).22 E -.198(Ti)305.758 403.6 S(mer).198 E(Expir)305.758416.6 Q(es)-.198 E(Expiry)379.544 377.6 Q -.198(Ti)379.544 390.6 S(mer).198 E(Expir)379.544 403.6 Q(es)-.198 E(Stop Being)446.389 377.6 Q(DF on I)446.389 390.6 Q 503.999 421.35 72 421.35 DL 503.999 423.35 72423.35 DL F0(-> J state)153.302 433.6 Q(-> NI state)40.082 E 70.123(--)25.43 G(-)-6.941 E F1(NoInf)78.57 446.6 Q 2.75(o\()-.275 G(NI\))-2.75 EF0(start Expiry)153.302 446.6 Q -.385(Ti)153.302 459.6 S(mer).385 E503.999 464.35 72 464.35 DL(-> J state)153.302 474.6 Q(-> PP state)40.082 E 70.123(--)24.803 G 2.75(>N)-70.123 G 2.75(Is)-2.75 G 16.96(tate ->)-2.75 F(NI state)2.75 E F1 -.165(Jo)78.57 494.1 S(in \(J\)).165E F0(restart Expiry)153.302 487.6 Q -.385(Ti)153.302 500.6 S(mer).385 E(start Prune)233.193 487.6 Q(Pending)233.193 500.6 Q -.385(Ti)233.193513.6 S(mer).385 E 503.999 518.35 72 518.35 DL(-> J state)153.302 528.6Q(-> PP state)40.082 E(-> NI state)24.803 E(-> NI state)26.651 E(-> NI state)19.71 E F1(Prune)78.57 548.1 Q -.22(Pe)78.57 561.1 S(nding).22 E(\(PP\))78.57 574.1 Q F0(restart Expiry)153.302 541.6 Q -.385(Ti)153.302 554.6 S(mer; stop).385 E(Prune)153.302 567.6 Q(Pending)153.302580.6 Q -.385(Ti)153.302 593.6 S(mer).385 E(Send Prune-)305.758 541.6 Q(Echo\(*,G\))305.758 554.6 Q 503.999 598.35 72 598.35 DL 436.534 367.35436.534 598.35 DL 369.689 367.35 369.689 598.35 DL 295.903 367.35295.903 598.35 DL 223.338 367.35 223.338 598.35 DL 142.447 352.35142.447 598.35 DL 144.447 352.35 144.447 598.35 DL 503.999 352.35503.999 598.35 DL 72 352.35 72 598.35 DL(The transition e)72 616.2 Q-.165(ve)-.275 G(nts "Recei).165 E .33 -.165(ve J)-.275 H(oin\(*,G\)" and "Recei).165 E .33 -.165(ve P)-.275 H(rune\(*,G\)" imply recei).165 E(ving a Join or)-.275 E(Prune tar)72629.2 Q(geted to this router')-.198 E 2.75(sa)-.605 G(ddress on the recei)-2.75 E -.165(ve)-.275 G 2.75(di).165 G(nterf)-2.75E 2.75(ace. If)-.11 F(the destination address is not)2.75 E(correct, these state transitions in this state machine must not occur)72 642.2 Q 2.75(,a)-.44 G(lthough seeing such a pack)-2.75 E(et)-.11 E(may cause state transitions in other state machines.)72 655.2 Q(On unnumbered interf)72 671.8 Q(aces on point-to-point links, the router')-.11 E 2.75(sa)-.605 G(ddress should be the same as the)-2.75 E(source address it chose for the hello pack)72 684.8 Q(et it sent o)-.11E -.165(ve)-.165 G 2.75(rt).165 G(hat interf)-2.75 E 2.75(ace. Ho)-.11 F(we)-.275 E -.165(ve)-.275 G 2.75(ro).165 G 2.75(np)-2.75 G(oint-to-point)-2.75 E(links we also recommend that PIM messages with a\ 0.0.0.0 destination address are also accepted.)72 697.8 Q(Handle)72 769Q(y/K)-.165 E(ouv)-.385 E(elas/Speakman/V)-.165 E 149.41(icisano Section)-.66 F 2.75(3.4.1. [P)2.75 F(age 10])-.165 E EP%%Page: 11 11%%BeginPageSetupBP%%EndPageSetup/F0 11/Times-Roman@0 SF(INTERNET)72 49 Q 66.092(-DRAFT Expires:)-1.012 F(December 2002)2.75 E(June 2002)116.406 E(The transition e)72 85 Q -.165(ve)-.275 G(nt "Stop being DF" implies a DF re-election taking place on\ this router interf).165 E(ace)-.11 E(and the router changing status from being the acti)72 98 Q .33 -.165(ve D)-.275 H 2.75(Ft).165 G 2.75(ob)-2.75 G(eing a non-DF router \(the v)-2.75 E(alue of the)-.275 E/F1 11/Courier@0 SF(I_am_DF)72 111 Q F0(macro changing to F)2.75 E(ALSE\).)-.814 E(When ExpiryT)72 127.6 Q(imer is started or restarted, it is set to the HoldT)-.385 E(ime from the triggering Join/Prune)-.385 E(message.)72 140.6 Q(When PrunePendingT)72 157.2 Q(imer is started, it is set to the J/P_Ov)-.385 E(erride_Interv)-.165 E(al if the router has more)-.275 E(than one neighbor on that interf)72 170.2 Q(ace; otherwise it is set to zero causing it to e)-.11 E(xpire immediately)-.165 E(.)-.715 E(The action "Send PruneEcho\(*,G\)"\ is triggered when the router stops forw)72 186.8 Q(arding on an interf)-.11 E(ace)-.11 E(as a result of a prune.)72 199.8 Q 2.75(AP)5.5 G(runeEcho\(*,G\) is simply a Prune\(*,G\) message sent by the upstream)-2.75 E(router to itself on a LAN.)72 212.8 Q(Its purpose is to add add\itional reliability so that if a Prune that should)5.5 E(ha)72 225.8 Q.33 -.165(ve b)-.22 H(een o).165 E -.165(ve)-.165 G(rridden by another \router is lost locally on the LAN, then the PruneEcho may be).165 E(recei)72 238.8 Q -.165(ve)-.275 G 2.75(da).165 G(nd cause the o)-2.75 E-.165(ve)-.165 G(rride to happen.).165 E 2.75(AP)5.5 G(runeEcho\(*,G\) need not be sent on a point-to-)-2.75 E(point interf)72251.8 Q(ace.)-.11 E/F2 11/Times-Bold@0 SF 2.75