tailieunhanh - The Illustrated Network- P83

The Illustrated Network- P83:In this chapter, you will learn about the protocol stack used on the global public Internet and how these protocols have been evolving in today’s world. We’ll review some key basic defi nitions and see the network used to illustrate all of the examples in this book, as well as the packet content, the role that hosts and routers play on the network, and how graphic user and command line interfaces (GUI and CLI, respectively) both are used to interact with devices. | Index 789 requirement levels 20 TCP 285-86 Resource records RRs 493 Class field 494 Comments field 495 Name field 493 Record-Data field 495 Record-Type field 494-95 TTL field 494 types 494 Resource Reservation Protocol RSVP 425-26 447 Reverse ARP RARP 146 158 468 Reverse-path forwarding RPF 411-13 check 412 table 412 table populating 412 -13 Ring topology 31 RIPE NCC Reseaux IP European Network Coordination Center 138 RIPng 345 352 362-64 configuring 348 350 for IPv6 packet fields 363 multicast addresses 350 next hop 364 updates 364 See also Routing Information Protocol RIP RIPv1 355 358-59 limitations 358-59 metrics 359 packets 358 subnet masks 359 update timer 358 wasted space 358 See also Routing Information Protocol RIP RIPv2 355 359-62 authentication 361 improvements 259 limitations 362 multicasting 362 next hop identification 361-62 packet format 359-61 subnet masks 361 See also Routing Information Protocol RIP RMON remote monitor 609 622 ROM 245 ROM monitor ROMMON 245 Root level certificate authorities 595 Root servers 487-89 details 489 list 488 operation 487-88 operators 488 See also Domain name system DNS Round-trip times 205 Route distinguishers 670 Route leaking 374 Router advertisement 212 DHCPv6 and 479-80 in host direction to DHCP server 213 message 203 Router architectures 242-47 basic 243-45 hardware-based 243 246-48 network processor engines NPEs 244 software-based 243 244 Router-assigned prefixes 113 Router-based networks. See Connectionless networks Router-by-router VPLS configuration 672-74 CEO router 672 PE5 router 673-74 Routers 7 8 33 37 63-64 77 222 access 248-49 auxiliary port 248 backbone 246 border 334 368 387 CE 9 47 669-70 672 676 716-19 console port 248 CPU chips 244 dead 213 delay 67 DHCP and 479-80 DSL 78 79 329 edge 329 334 egress 446 451-52 file transfer to 10-11 function 220 Illustrated Network 9 346-47 illustrated use 69 in-band management 248 indirect delivery and 231-34 ingress 446 450 interfaces 233-34 Internet core 127 IPSec