Ethernet Networks: Design, Implementation, Operation, Management 4th phần 5 potx

... near-English address name, which in Figure 5. 45 would be www.xyz.com. Instead, users would have to know your numeric IP address. The DNS entry area in Figure 5. 45 allows you to specify up to three name servers ... into defined network layers. Figure 5. 29 illustrates ISO Layers 5 7 4 3 2 FTP TELNET SMTP DNS NFS SNMP UDPTCP ICMP IP ARP Ethernet 802.3 FDDIToken ring 802 .5 Legend: ARP...

Ngày tải lên: 14/08/2014, 02:20

... MIB 53 6 M ANAGING REMOTE NETWORKS 53 9 10.3 O THER NETWORK MANAGEMENT F UNCTIONS 54 1 C ONFIGURATION MANAGEMENT 54 2 P ERFORMANCE MANAGEMENT 54 3 F AULT MANAGEMENT 54 3 A CCOUNTING MANAGEMENT 54 3 S ECURITY ... 54 3 S ECURITY MANAGEMENT 54 4 10.4 R EPRESENTATIVE NETWORK MANAGEMENT PROGRAMS 54 4 T RITICOM ETHERVISION 54 5 C INCO NETWORK’S WEBXRAY 55 4 W ILDPACKETS ET...

Ngày tải lên: 14/08/2014, 02:20

... transmitting a frame of 65 Ethernet Networks: Design, Implementation, Operation, Management. Gilbert Held Copyright  2003 John Wiley & Sons, Ltd. ISBN: 0-470-84476-0 ethernet networks 73 Transceiver Transceiver Cable segment Cable segment R Figure ... 39.1 2.6 53 .3 2 .5 60.3 4.0 7.3 29.3 4.8 43.3 4 .5 50.6 8.0 10.2 24.3 6.7 38.2 6.3 45. 6 10.0 11 .5 22.7 7 .5 36.6 7...

Ngày tải lên: 14/08/2014, 02:20

... graded index fiber size (µm) 50 /1 25 50/1 25 50/1 25 62 .5/ 1 25 83/1 25 100/140 Numerical aperture .20 .21 .22 .2 75 .26 .30 10BASE-FL Loss budget (dB) 9.7 9.2 9.6 13 .5 15. 7 19.0 FOIRL Loss budget (dB) 7.2 ... of Ethernet and IEEE 802.3 frames concerns 155 Ethernet Networks: Design, Implementation, Operation, Management. Gilbert Held Copyright  2003 John Wiley &...

Ngày tải lên: 14/08/2014, 02:20

... to the specific network called the Internet, whose first letter is 191 Ethernet Networks: Design, Implementation, Operation, Management. Gilbert Held Copyright  2003 John Wiley & Sons, Ltd. ISBN: ... is at least 51 2 bytes in length. In examining Figure 4. 15, it is important to note that the carrier extension scheme does not extend the Ethernet frame beyond a 51 2-byte tim...

Ngày tải lên: 14/08/2014, 02:20

... (Bytes) 50 % Load 100% Load Ethernet 152 6 406 812 72 7440 14,880 Fast Ethernet 152 6 4 050 8120 72 74,400 148,800 Gigabit Ethernet 152 6 40,600 81,200 72 744,000 1,488,000 10 Gigabit Ethernet 152 6 406,000 ... Those high-speed connections include 100-Mbps Fast Ethernet, 1-Gbps and 10-Gbps Gigabit Ethernet, 100-Mbps FDDI, 155 -Mbps ATM, full-duplex Ethernet and Token-Ring, and fa...

Ngày tải lên: 14/08/2014, 02:20

... vLAN. Server Server 198.78 .55 .XXX 198.78.42.XXX 198.78 .55 .XXX 198.78 .55 .XXX 198.78 .55 .XXX 198.78.42.XXX 198.78.42.XXX LAN Switch 4 5 0 1 2 3 vLAN1 = Subnet 198.78 .55 vLAN2 = Subnet 198.78.42 Figure ... the subnet mask is 255 . 255 . 255 .128. This means the mask extends the network portion of an IP address to 11111111.11111111.11111111.1, or 25 bit positions, resulting in 7 (32–...

Ngày tải lên: 14/08/2014, 02:20

... band from 5. 15 GHz to 5. 35 MHz has two sub-bands. The first 100 MHz in the lower section is restricted to a maximum power output of 50 mW, while the second 100 MHz has a more generous 250 mW maximum ... maximum power output. A third band at 5. 7 25 MHz to 5. 8 25 MHz is designed for outdoor applications and supports a maximum of 1 W of power output. Because the 5 GHz band has almo...

Ngày tải lên: 14/08/2014, 02:20

... below: interface ethernet0 ip address 198.78.46.1 255 . 255 . 255 .0 ip access-group 101 in ! ! interface serial0 ip address 198.78.40 .5 255 . 255 . 255 .0 ip inspect firewall out ip access-group 102 in 51 8 chapter ... serial0 ip access-group inbound in ! ip access-list standard inbound permit 2 05. 131.1 75. 0 0.0.0. 255 permit 198.78.46.0 0.0.0. 255 Now that we have an appreciation f...

Ngày tải lên: 14/08/2014, 02:20

... computer was between 56 7 Ethernet Networks: Design, Implementation, Operation, Management. Gilbert Held Copyright  2003 John Wiley & Sons, Ltd. ISBN: 0-470-84476-0 57 8 chapter eleven the ... Yes No Packets 65 127 octets in length Yes No Packets 128– 255 octets in length Yes No Packets 256 51 1 octets in length Yes No Packets 51 2–10 25 octets in length Yes No Packets 1...

Ngày tải lên: 14/08/2014, 02:20