Ethernet Networks: Design, Implementation, Operation, Management 4th phần 1 pot
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 1 pot
... Edition
0 4 71 97 517 6 (May 19 98)
Internetworking LANs and WANs: Concepts, Techniques and Methods,
Second Edition
0 4 71 97 514 1 (May 19 98)
LAN Management with SNMP and RMON
0 4 71 14736 2 (September 19 96)
chapter ... NETWORKS 539
10 .3 O
THER NETWORK MANAGEMENT F UNCTIONS 5 41
C
ONFIGURATION MANAGEMENT 542
P
ERFORMANCE MANAGEMENT 543
F
AULT MANAGEMENT 543
A
CCOUNTING...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 4 pot
... symbols,
which defines the unique code 11 000 10 0 01. This field replaces the first
octet of the preamble in Ethernet and IEEE 802.3 frames whose composition
is 10 1 010 10.
End-of-Stream Delimiter
The end-of-stream ... whose first letter is
19 1
Ethernet Networks: Design, Implementation, Operation, Management.
Gilbert Held
Copyright
2003 John Wiley & Sons, Ltd.
ISBN: 0-4...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 5 potx
... no
subnets:
11 111 111 11 111 111 00000000 00000000
Class B address format
Class B subnet address format
Octet 1 Octet 2 Octet 3 Octet 4
0
Network
identifier
Host identifier
1
Octet 1 Octet 2 Octet ... byte:
12 8 64 32 16 8 4 2 1
Based upon the above, a byte with the bit composition 10 000 011 would have
the decimal value 12 8 + 2 + 1, or 13 1 decimal. Similarly, a byte with t...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 2 pptx
... Attenuation NEXT
1. 0 4.2 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 7.0 44.0
16 .0 14 .9 19 .3 9.9 33 .1 9.2 40.6
20.0 — — 11 .0 31. 4 10 .3 39.0
25.0 ... Characteristics
Operational
Characteristics Ethernet 10 BASE-5 10 BASE-2 1BASE-5 10 BASE-T 10 BROAD-36
Operating rate
(Mbps)
10 10 10 1 10 10
Ac...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 3 pptx
... hub
2
WS
1- 1
3 4 N
WS
1- 2
WS
1- 4
WS
1- N
Up
1
Level-2 hub
If all ports have normal-priority requests pending, then:
Level -1 scan 1- 1, 1- 2, 1- 3, 1- 4, , 1- N
Level-2 scan 2 -1, 2-2, 2-3, , 2-N
Level -1 resulting ... times/meter
10 00BAE-LX or SX 10 .10 bit times/meter
TABLE 3 .13 Computations for a Trans-
mission Model 2 Repeater
Component Bit Time
DTE1 432
10 0 meters U...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 6 doc
... Load 10 0% Load
Ethernet
15 26 406 812
72 7440 14 ,880
Fast Ethernet
15 26 4050 812 0
72 74,400 14 8,800
Gigabit Ethernet
15 26 40,600 81, 200
72 744,000 1, 488,000
10 Gigabit Ethernet
15 26 406,000 812 ,000
72 ... bytes
D is direction bit
LF identifies largest frame
Size in bytes
000
0 01
010
011
10 0
10 1
11 0
11 1
516
15 00
2052
4472
819 1
Reserved
Reserved
Used...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 7 ppt
... 11 0000 01. 0 011 1000.0 010 110 1.00000000 = 19 3.56.45.0
Subnet 1: 11 0000 01. 0 011 1000.0 010 110 1 .10 000000 = 19 3.56.45 .12 8
Subnet mask: 11 111 111 .11 111 111 .11 111 111 .10 000000 = 19 3.56.45 .12 8
In examining the above base ... example, assume the subnet mask is
255.255.255 .12 8. This means the mask extends the network portion of an IP
address to 11 111 111 .11 111 11...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 8 docx
... IEEE 802 .11 standard.
802 .11 b
Under the 802 .11 b extension to the IEEE 802 .11 standard the data rate was
increased to 5.5 Mbps and 11 Mbps under DSSS operations. At the higher data
wireless ethernet ... eight
TABLE 8.3 2.4 GHz DSSS
Channels
Channel Frequency (MHz)
1 2 412
2 2 416
3 2422
4 2427
5 2432
6 2437
7 2442
8 2447
9 2452
10 2457
11 2462
12 2467
13 2473
2.4 GHz Frequency...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 9 ppt
... access-group 11 0 in
access-list 11 0 remark allow TCP with ACK or RST bit set
access-list 11 0 permit TCP any any established
access-list 11 0 remark allow Web access to server
access-list 11 0 permit ... use
port 30 01. For example, if your router’s IP address is 205 .13 1 .17 6 .1, you
would enter the following command:
telnet 205 .13 1 .17 6 .1 30 01
Now that we have an appreciatio...
Ethernet Networks: Design, Implementation, Operation, Management 4th phần 10 pdf
... a 10 Gigabit Ethernet switch infrastructure to the central office serving the
destination local loop.
TABLE 11 .1 Gigabit Ethernet vs. 10 Gigabit Ethernet
Attribute Gigabit Ethernet 10 Gigabit Ethernet
Physical ... No
Packets 65 12 7 octets in length Yes No
Packets 12 8–255 octets in length Yes No
Packets 256– 511 octets in length Yes No
Packets 512 10 25 octets in length Yes N...
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