Unformatted text preview: tion. 2
dropping one+of are lead) to 3"cons")2e+inies,=loops, unreachdrops machines, and other problems.
line, so 800
12. only minimum occurs bufferclusters, each with 16 regions,p )packets before all
The when there is no at 15 space left, whereas "
RED (1 ! each region having
11. the routers,are exhausted. equivalent forms, e.g., 20 clusters of 16 regions of 15
It always holds. Ifof the
20 buffer or one a irst wehasilarrived on atline, it must beribution algorithm. Later we will give some refinem
describe h basic 2 .
Finally, thehas casesFthe table w litis 215 +be+ + e/ (1=!51.dist cases 00 (has not
no packet all arrived used is just (p ! 3p sent there.) The
on a line, must
routers. In total hops ndamental idea is16 3)20 flooding to distribute the link state packets. To keep the fl
24. The router has to do approximately (has samese and will be sent back) are
work queueing a
arrived and counting method explicitly sends amount of notiﬁcationa particular
and 11 the
23. 3packet, byte-will not bebig it is. the leakylittle a congestionall frames 10 to the is system. The for each new pa
First,he no matter howgosent) of There is carrivedalgorithm ence number that incremented
. T the warning bit variant promiscuousbucket readingprocessingindropped
check, each packet ontains athat u is used
13. logically incorrect and thus do not exist. mode,
Conceivably it might
packsource 100setting each isismuchpacket, work than the (sourcenormallymay be sent pairs they see. When a new li
ontoule by that but bit, whereas more implicitly processing 1 router, se1000
this very RED or of 512-byte the packet simply
ets roftheisLAN, one 1024-bytekeep track twoall notiﬁespackets, etc., of quence) on each tick.
bytes a Routers inefﬁcient. Instead, what is source by done is
packets. Second, it
12. droppingaoneiousits pack15 clusters,in, into thinkingditagainstmobilea host packets already seen. If it is new, it
The minimum occurs tricks thethis each with 16 regions, the tregion having
that the ser agent at et of router the warning bit is each he list of by
bytes. homeof restriction comes systemi.s checke method drops packet
frequests.space left, lines except an IPopacketregions of forIf it is a duplicate, it is discarded.
only when there is of orwarded on all whereas 20 clusters npackets before all
20 routers, or one nothe equivalent forms, e.g., gets the of 16 arrived on.
responding to ARP buffer When the router RED drops e it destined 15
25. the buffer are exhausted.tablepackets 15 + 16ce 20 1024...
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- Fall '13
- Networking, Shortest path problem, bability thatofthough