Lectures notes for 2010 - KTH
Lectures notes for 2010 - KTH Lectures notes for 2010 - KTH
Basic Router Software Architecture UDP icmp ipintr ipforward ipoutput routing happens here ARP if_output ipintrq arpintrq ether_output radio_output if_snd if_snd leread radioread leintr lestart radiostart radiointr Figure 2: Basic Router Architecture (assuming a radio and an ethernet interface) Maguire Basic Router Software Architecture 7: 5 of 70 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
Processing Rouing daemon route command netstat command Routing Policy UDP TCP Yes Routing Mechanism routing table update from adjacent routers ICMP redirects ICMP IP Output: No forward datagram (if forwarding is enabled) source routing our packet or a broadcast process IP options Routing Table calculate next hop router (if necessary) IP input queue IP Layer network interfaces Maguire Processing 7: 6 of 70 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
- Page 381 and 382: Transaction TCP (T/TCP) Piggyback a
- Page 383 and 384: References [1] Information Sciences
- Page 385 and 386: Transport layer protocols • User
- Page 387 and 388: SCTP Applications • Initial goal
- Page 389 and 390: • Type SCTP Chunk 0 7 8 15 16 23
- Page 391 and 392: INIT Chunk 0 7 8 15 16 23 24 31 Typ
- Page 393 and 394: INIT ACK Chunk 0 7 8 15 16 23 24 31
- Page 395 and 396: COOKIE ECHO Chunk 0 7 8 15 16 23 24
- Page 397 and 398: Data Chunk 0 7 8 15 16 23 24 31 Typ
- Page 399 and 400: Selective Acknowledgement (SACK) Ch
- Page 401 and 402: Association Termination Two forms o
- Page 403 and 404: 0 7 8 15 16 23 24 31 Type = 14 Flag
- Page 405 and 406: ethereal capture - daytime - INIT F
- Page 407 and 408: ethereal capture - daytime - COOKIE
- Page 409 and 410: ethereal capture - daytime - DATA F
- Page 411 and 412: ethereal capture - daytime - SHUTDO
- Page 413 and 414: ethereal capture - daytime - SHUTDO
- Page 415 and 416: HEARTBEAT and HEARTBEAT ACK Chunks
- Page 417 and 418: Differences from TCP Congestion Con
- Page 419 and 420: 3 When retransmitting to a remote a
- Page 421 and 422: Forward Cumulative TSN Allows an en
- Page 423 and 424: SCTP Performance See the upcoming e
- Page 425 and 426: Summary This lecture we have discus
- Page 427 and 428: 2002 http://www.ietf.org/rfc/rfc330
- Page 429 and 430: • Dynamic Routing Protocols Outli
- Page 431: Routing Principles • Routing Mech
- Page 435 and 436: Autonomous systems (ASs) - RFC1930
- Page 437 and 438: Routing Algorithms • Static vs. D
- Page 439 and 440: Routing Information Protocol (RIP)
- Page 441 and 442: When are routes sent? Solicited res
- Page 443 and 444: Count to Infinity C network 1 netwo
- Page 445 and 446: Triggered updates and Hold-Downs To
- Page 447 and 448: Why would anyone use RIP? After all
- Page 449 and 450: IGRP Metrics • a vector of metric
- Page 451 and 452: IGRP Default Gateway Rather than us
- Page 453 and 454: Open Shortest Path First (OSPF) OSP
- Page 455 and 456: OSPF building blocks 1. Hello proto
- Page 457 and 458: Hello packet 0 7 8 15 16 23 24 31 V
- Page 459 and 460: Link State Announcement (LSA) heade
- Page 461 and 462: Link state update packet 0 7 8 15 1
- Page 463 and 464: Link state acknowledgement packet 0
- Page 465 and 466: Exterior Gateway Protocol (EGP) an
- Page 467 and 468: Local vs. Transit traffic Local tra
- Page 469 and 470: BGP does not transmit metrics. Howe
- Page 471 and 472: Redistribution of Route Information
- Page 473 and 474: • Open • Update • Keepalive
- Page 475 and 476: BGP Update Message 0 7 8 15 16 23 2
- Page 477 and 478: BGP Notification Message 0 7 8 15 1
- Page 479 and 480: Federal Internet eXchange (FIX) A t
- Page 481 and 482: Global Internet eXchange (GIX) Glob
Processing<br />
Rouing daemon route command netstat command<br />
Routing Policy<br />
UDP<br />
TCP<br />
Yes<br />
Routing<br />
Mechanism<br />
routing<br />
table<br />
update<br />
from<br />
adjacent<br />
routers<br />
ICMP<br />
redirects<br />
ICMP<br />
IP Output:<br />
No<br />
<strong>for</strong>ward datagram<br />
(if <strong>for</strong>warding is enabled)<br />
source<br />
routing<br />
our packet<br />
or a broadcast<br />
process IP options<br />
Routing<br />
Table<br />
calculate next hop router<br />
(if necessary)<br />
IP input queue<br />
IP Layer<br />
network interfaces<br />
Maguire Processing 7: 6 of 70<br />
maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik
Change language