2. NI DUNGTng quan mng my tnhB giao thc TCP/IP Mng LAN v thit k
mng LAN Mng WAN v thit k mng WAN04/08/2012 3. Tng quan v mng my tnh
Khi nim Phn loi mng my tnh M hnh OSI Mt s b giao thc kt ni
mng04/08/2012 4. Tng quan v mng my tnhKhi nimMng my tnh l hai hay
nhiumy tnh c kt ni vi nhautheo mt phng thc no Trao i thng tin Chia
s ti nguyn dng chung04/08/2012 5. Tng quan v mng my tnhLi ch ca vic
s dng mng my tnh S dng chung cc cng c tin ch Chia s kho d liu chung
Tng tin cy ca h thng Trao i thng tin, hnh nh Dng chung cc thit b
ngoi vi Gim chi ph v thi gian i li04/08/2012 6. Tng quan v mng my
tnhPhn loi mng : Theo phng thc kt ni Theo vng a l Theo cu trc Theo
chc nng04/08/2012 7. Tng quan v mng my tnhPhn loi mng : Theo phng
thc kt ni Point to Point : ng truyn ring bit c thit lp ni cc cp my
tnh vi nhau04/08/2012 8. Tng quan v mng my tnhPhn loi mng : Theo
phng thc kt ni Point to Multipoint : T mt trm c th kt ni n nhiu
trm04/08/2012 9. Tng quan v mng my tnhPhn loi mng : Theo vng a l
GAN (Global Area Network) : kt ni gia cc chu lc. WAN (Wide Area
Network) : kt ni trong ni b cc quc gia hay gia cc quc gia trong cng
chu lc. MAN (Metropolitan Area Network) : kt ni trong phm vi thnh
ph. LAN (Local Area Network) : kt ni trong vng bn knh hp vi trm mt,
s dng ng truyn tc cao.04/08/2012 10. Tng quan v mng my tnhPhn loi
mng : Theo Topology Star : cc trm ni vo mt thit b trung tm c nhim v
nhn tn hiu t cc trm v chuyn n ch theo phng thc point to
point04/08/2012 11. Tng quan v mng my tnhPhn loi mng : Theo
Topology Bus : cc my tnh c ni vo mt ng truyn chnh( c gi l bus
)04/08/2012 12. Tng quan v mng my tnhPhn loi mng : Theo Topology
Ring : cc my tnh c lin kt thnh mt vng trn theo phng thc im -
im04/08/2012 13. Tng quan v mng my tnhPhn loi mng : Theo Topology
Kt hp : s dng kt hp cc loi Ring, Bus, Star tn dng cc im mnh ca mi
dng04/08/2012 14. Tng quan v mng my tnhPhn loi mng : Theo chc nng
Client Server :mt s my c thit lp nh server cung cp dch v, cc my s
dng l client Mng peer-to-peer : cc my tnh trong mng va c th hot ng
nh client va nh mt server04/08/2012 15. Tng quan v mng my tnhPhn
bit gia mng LAN v WAN: LANWANCircuit switching, PacketEthernet,
Token Phng thc kt niswitching, ATM, FrameRing, ATMRelay Phm vi hot
ng nhrngTc kt ni v t l caoC th chp nhn cbit04/08/2012 16. Tng quan
v mng my tnh Khi nim Phn loi mng my tnh M hnh OSI Mt s b giao thc
kt ni mng04/08/2012 17. Tng quan v mng my tnhM hnh tham chiu OSI
(Open Systems Interconnection)S pht trin cc chun mng v s ra i ca m
hnh tham chiu OSI SNA Chun ha Kh nng kt ni Kh nng pht trin n gin
haTCP/IPDECNET04/08/2012 18. Tng quan v mng my tnhM hnh OSI ( Open
Systems Interconnection) OSI ( Open Systems Interconnection) : Ra i
nm 1984 - L tp hp cc c im k thut m t kin trc mng dnh cho vic kt ni
cc thit b khng cng chng loi04/08/2012 19. Tng quan v mng my tnhCu
trc phn lp ca m hnh OSILayer 7: ApplicationLayer 6:
PresentationLayer 5: SessionLayer 4: TransportLayer 3: NetworkLayer
2: Data LinkLayer 1: Physical04/08/2012 20. Tng quan v mng my tnhM
hnh OSI ( Open systems Interconnection) Chc nng : Cung cp giao tip
gia chng trnh ng dng cho ngi s dng vi h thng mng Trnh by cc c t k
thut gii quyt vn giao tip gia cc chng trnh ng dng vi h thng mng V d
: Cc ng dng HTTP, Telnet, FTP, Mail04/08/2012 21. Tng quan v mng my
tnhM hnh OSI ( Open systems Interconnection) Chc nng : m bo cc dng
thc biu din thng tin ca cc ng dng sao cho cc h thng trn mng c th
hiu c. Trnh by cc c t k thut cc dng thc biu din thng tin nh : m ho,
gii m, nn, cc dng thc file nh. JPEG, ASCII, GIF, MPEG,
Encryption04/08/2012 22. Tng quan v mng my tnhM hnh OSI ( Open
systems Interconnection) Chc nng : Thit lp, qun l, kt thc cc phin
(session) giao dch, trao i d liu trn mng gia cc ng dng Trnh by cc c
t k thut thc hin qu trnh trn. V d : RPC, SQL,NFS04/08/2012 23. Tng
quan v mng my tnhM hnh OSI ( Open systems Interconnection) Chc nng
: m bo tin cy cho cc gi tin truyn ti trong mng. Trnh by cc c t k
thut thc hin vic : nh th t v m bo th t truyn cc gi tin, ghp/tch d
liu t cc gi tin n t mt ng dng,chn la giao thc truyn nhn d liu c hay
khng c ch sa li. V d : TCP,UDP04/08/2012 24. Tng quan v mng my tnhM
hnh OSI ( Open systems Interconnection) Chc nng : m bo qu trnh
chuyn giao cc gi tin gia cc h thng trn mng thng qua vic xc nh ng
dn, x l gi tin, chuyn giao gi tin n cc h thng. Trnh by cc c im k
thut v a ch logic cho cc thit b mng, c ch nh tuyn, cc giao thc nh
tuyn, mch o.04/08/2012 25. Tng quan v mng my tnhM hnh OSI ( Open
systems Interconnection) Chc nng :m bo kh nng truyn ti d liu trn ng
truyn vt l mt cch tin cy. n v d liu l cc Frame Trnh by cc c t k
thut bao gm dng thc d liu, i ch gi nhn, c ch truy cp ng truyn V d :
HDLC, FrameRelay, PPP, IEEE 802.3/802.204/08/2012 26. Tng quan v
mng my tnhM hnh OSI ( Open systems Interconnection) Chc nng: Chuyn
ti cc dng bit khng c cu trc trn ng truyn vt l. n v d liu l cc bit
Trnh by cc c t v in v vt l ca mng : giao tip vt l, c tnh in ca cc
giao tip, c ly v tc truyn d liu. V d : V.35, V.24, RJ45, EIA/TIA-
232, 802.304/08/2012 27. Tng quan v mng my tnhV d v mt qu trnh ng
gi d liu04/08/2012 28. Tng quan v mng my tnhV d v mt qu trnh ng gi
d liu04/08/2012 29. Tng quan v mng my tnhTng tc gia cc lp trong m
hnh OSI Bc 1: Lp vt l m bo ng b bit, t cc mu bit trong buffer, thng
bo cho lp datalink v frame nhn c sau khi gii m tn hiu t chui bit
nhn c Bc 2 : Lp datalink kim tra FCS trong trailer cua frame nhn c
pht hin li trong truyn dn, nu pht hin li th loi b frame, kim tra a
ch datalink, nu ng th chuyn data gia header v trailer ca frame ln
software lp 304/08/2012 30. Tng quan v mng my tnhTng tc gia cc lp
trong m hnh OSI Bc 3 : Lp network kim tra a ch lp 3, nu ng th x l
tip v chuyn d liu sau header lp 3 cho software lp 4 Bc 4 : Lp
transport khi phc cc on d liu n theo ng th t bng thng tin ACK trong
header v chuyn cho lp session04/08/2012 31. Tng quan v mng my
tnhTng tc gia cc lp trong m hnh OSI Bc 5 : Lp session m bo chui cc
message nhn y , sau chuyn cho lp presentation. Bc 6 : Lp
presentation chuyn i d liu, chuyn cho lp ng dng. Bc 7 : Lp ng dng x
l header cui cng cha cc thng tin v cc tham s chng trnh ng dng gia 2
host.04/08/2012 32. Tng quan v mng my tnh Khi nim Phn loi mng my
tnh M hnh OSI Mt s b giao thc kt ni mng04/08/2012 33. Tng quan v
mng my tnhMt s b giao thc kt ni mngTCP/IP: C kh nng lin kt nhiu loi
my tnh khc nhau. L chun Internet ton cu.NetBEUI : c cung cp theo cc
sn phm ca IBM, Microsoft Khng h tr nh tuyn, ch s dng da vo mng
Microsoft04/08/2012 34. Tng quan v mng my tnhMt s b giao thc kt ni
mngIPX/SPX : S dng trong mng Novell Nh nhanh v hiu qu trn cc mng cc
b, c h tr nh tuynDECnet: Giao thc c quyn ca hng Digital Equipment
Corporation nh ngha m hnh truyn thng qua LAN, MAN, WAN, c h tr nh
tuyn04/08/2012 35. NI DUNGTng quan mng my tnhB giao thc TCP/IP Mng
LAN v thit k mng LAN Mng WAN v thit k mng WAN04/08/2012 36. B giao
thc TCP/IP Tng quan v b giao thc TCP/IP Cc giao thc ca b giao thc
TCP/IP Cc dch v trn mng s dng b giao thc TCP/IP04/08/2012 37. B
giao thc TCP/IPTng quan v b giao thc TCP/IP Lch s ra i v pht trin T
nhng nm 60 ra i cc h thng mng, lin mng, khi u l mng ARPANET ca b
quc phng M. u thp nin 70 cc nh khoa hc bt tay vo nghin cu cc giao
thc lin mng ( internetworking ) B giao thc TCP/IP c cng b v hon
thin vo khong 197804/08/2012 38. B giao thc TCP/IPTng quan v b giao
thc TCP/IP Lch s ra i v pht trin ( tip theo ) 1980 DARPA chnh thc
chuyn mng ARPANET t mng nghin cu sang s dng b giao thc TCP/IP, khi
nim Internet xut hin t 1983 : Qu trnh chuyn i chnh thc hon thnh khi
DARPA yu cu tt c cc my tnh mun kt ni mng vi ARPANET phi s dng
TCP/IP, mng ARPANET chnh thc tr thnh mng thng mi04/08/2012 39. B
giao thc TCP/IPTng quan v b giao thc TCP/IP Cu trc phn lp ca b giao
thc TCP/IP Lp 4: Application Lp 3: Transport Lp 2: Internet Lp 1:
Network accessMt s lp trong m hnh TCP/IP c cng tn vi m hnhOSI. Tuy
nhin khng nn nhm ln gi hai m hnh ny.04/08/2012 40. B giao thc
TCP/IPTng quan v b giao thc TCP/IP So snh cu trc phn lp04/08/2012
41. B giao thc TCP/IPTng quan v b giao thc TCP/IP Cu trc phn lp ca
b giao thc TCP/IP Chc nng : Cung cp cc chng trnh ng dng trn mng
TCP/IP. Thc hin cc chc nng ca cc lp cao nht trong m hnh 7 lp bao gm
: M ho/gii m, nn, nh dng d liu, thit lp/gii phng phin giao dch V d
: Cc ng dng HTTP, Telnet, FTP, Mail04/08/2012 42. B giao thc
TCP/IPTng quan v b giao thc TCP/IP Cu trc phn lp ca b giao thc
TCP/IP Chc nng : Thc hin chc nng chuyn vn lung d liu gia 2 trm m bo
tin cy, iu khin lung, pht hin v sa li. C 2 giao thc chnh l TCP v
UDP04/08/2012 43. B giao thc TCP/IPTng quan v b giao thc TCP/IP Cu
trc phn lp ca b giao thc TCP/IP Chc nng : Thc hin chc nng x l v
truyn gi tin trn mng. Cc qu trnh nh tuyn c thc hin lp ny C cc giao
thc gm IP, ICMP ( Internet Control Message Pprotocol), IGMP (
Internet Group Message Protocol)04/08/2012 44. B giao thc TCP/IPTng
quan v b giao thc TCP/IP Cu trc phn lp ca b giao thc TCP/IP Chc nng
: thc hin chc nng giao tip mi trng mng, chuyn giao dng d liu ln ng
truyn vy l. Thc hin chc nng tng ng lp 1,2 ca m hnh OSI04/08/2012
45. B giao thc TCP/IPTng quan v b giao thc TCP/IP Cu trc giao thc
ca b giao thc TCP/IPSMTP,HTTP, FTP, TelnetTCP UDPICMP ARP RARP
IPEthernet, Token-Ring, FrameRelay, ATM04/08/2012 46. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IPIP : Internet
Protocol l giao thc quan trng nht trongb giao thc TCP/IP- Cung cp
kh nng kt ni cc mngcon thnh lin mng.ng gi d liu thnh cc datagram v
phn phtdatagram theo kiu khng lin kt, khng tin cyChu trch nhim v a
ch lp mng, cc giao thc nhtuynC 2 phin bn a ch: IPv4, IPv604/08/2012
47. B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc
IP - cu trc khung Version : Phin bn cagiao thc IP04/08/2012 48. B
giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu
trc khung IHL : Chiu di ca header tnh bng word 32 bit04/08/2012 49.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP -
cu trc khung Type of service: c t tham s vyu cu dch v04/08/2012 50.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP -
cu trc khung Total length: Chiu di tng cng ca IP Datagram
(byte)04/08/2012 51. B giao thc TCP/IPCc giao thc trong b giao thc
TCP/IP Giao thc IP - cu trc khung Identification: nh danh, kt hp vi
cc tham s khc nh Sadd, Dadd nh danh duy nht cho midatagram c gi
i04/08/2012 52. B giao thc TCP/IPCc giao thc trong b giao thc
TCP/IP Giao thc IP - cu trc khung Flag: S dng trong khi phn on cc
datagram04/08/2012 53. B giao thc TCP/IPCc giao thc trong b giao
thc TCP/IP Giao thc IP - cu trc khungFragmentation Offset: Ch v tr
ca on phn mnh trong datagram tnh theo n v 64bit04/08/2012 54. B
giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu
trc khungTime to Live: Thit lp thi giantn ti ca datagram04/08/2012
55. B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc
IP - cu trc khung Protocol: Ch giao thc tng trn k tip04/08/2012 56.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP -
cu trc khungHeader checksum: Kim tra li ca phn header04/08/2012 57.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP -
cu trc khungSource Address : i ch IP trm ngun04/08/2012 58. B giao
thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu trc
khungDestination Address : i ch IP trm ch04/08/2012 59. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu trc
khung Option : Khai bo cc ty chn do ngi gi yu cu04/08/2012 60. B
giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu
trc a ch IP C di 32bit, c biu din di dng thp phn gm 4 vng, mi vng 1
byte cch nhau bng du chm.V d 203.162.7.92 Chia lm 2 phn: network,
hostIP address = . Datrn s bit cp cho hai phn trn m a ch IP c chia
lm 5 lp A, B, C, D, E04/08/2012 61. B giao thc TCP/IPCc giao thc
trong b giao thc TCP/IP Giao thc IP - cu trc a ch IP Lp A :Bit u l
0, 7 bit tip theo i chmng v 24 bit cui l a ch host 126mng v 16 triu
trm/mi mng Lp B : 2bit u l 1v 0, 14 bit tip theoa ch mng v 16 bit
cui a ch host16384 mng v ti a 65535 trm/mimng Lp C : 3 bit u l 110,
21 bit tip theol i ch mng v 8 bit cui l a chhost 2 triu mng v ti a
254trm/mi mng.04/08/2012 62. B giao thc TCP/IPCc giao thc trong b
giao thc TCP/IP Giao thc IP - cu trc a ch IP Lp D :4 Bit u l 1110
lp a ch ny c s dng gi gi tin IP n mt nhmhost trn mng ( cn gi l lp a
ch Multicast ). Lp E : 5 bit u l 11110 hin cha s dng.04/08/2012 63.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP -
cu trc a ch IP C th s dng c byte u tin nhn dng lp a ch IP nh sau :
Nh hn 128 : i ch thuc lp A, byte u l a ch mng, 3 byte tip theo l a
ch host T 128 n 191 : i ch thuc lp B, 2 byte u tin l a ch mng, 2
byte tip theo l a ch host. T 192 n 223 : i ch thuc lp C, 3 byte u
tin l a ch mng, byte cui cng l a ch host. T 224 n 239 : L a ch
Multicast, khng c phn i ch mng Ln hn 239 l a ch cha s dng04/08/2012
64. B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc
IP - cu trc a ch IP Lp i ch Khong a ch Lp A 0.0.0.0. n
127.255.255.255 Lp B 128.0.0.0 n 191.255.255.255 Lp C 192.0.0.0 n
223.255.255.255 Lp D 224.0.0.0. n 239.255.255.255 Lp E 240.0.0.0 n
247.255.255.255.25504/08/2012 65. B giao thc TCP/IPCc giao thc
trong b giao thc TCP/IP Giao thc IP - cu trc a ch IP s dng vi cc
mng nh, c th phn chia cc lp mng thnhnhiu lp mng con ( subnet), s
dng mt s bit trong hostIDlm subnet ID.0 Network IDSubnet ID Host
ID04/08/2012 66. B giao thc TCP/IPCc giao thc trong b giao thc
TCP/IP Giao thc IP - cu trc a ch IP Mt n i ch mng con ( Subnet mask
) : Gi tr s 32 bit, c biu din tng t mt i ch IP. Dng xc nh bao nhiu
bit trong trng host ID c dng lm i ch mng con. Gi tr Subnetmask c
thc hin php AND logic vi gi tr i ch IP xc nh i ch subnet Biu din
Subnet mask nh sau : Tt c cc bit thuc netID v Subnet ID c t bng 1,
cc bit cn li c t bng 0.04/08/2012 67. B giao thc TCP/IPCc giao thc
trong b giao thc TCP/IP Giao thc IP - cu trc a ch IP Mt n i ch mng
con ( Subnet mask ) : V d v Subnet mask : C a ch mng lp C l :
203.162.7.0 Chia lp mng ny ra thnh 64 subnet nh :04/08/2012 68. B
giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - cu
trc a ch IPCc a ch IP c bit : i ch IPVai trM tNetIDSubnetID HostID
a ch a ch ngun ch0 0CKhng Trm hin ti trong mng hin ti0 hostID CKhng
Trm hostID trong mng hin ti127 Bt k CCi ch phn hi1 1Khng Ca ch qung
b gii hnnetID 1Khng Ca ch qung b ti mng netIDnetIDsubnetID 1Khng Ci
ch qung b ti mng con subnetID, netIDnetID11Khng Ci ch qung b timi
mng con trong netID04/08/2012 69. B giao thc TCP/IPCc giao thc
trong b giao thc TCP/IP Giao thc IP Phn mng v hp nht cc gi IP Khi
tng IP nhn c cc datagram gi i, n s so snh vi kch thc cc i cho php
MTU ( Maximum Transfer Unit ) ca giao thc ( v tng d liu qui nh kch
thc ln nht ca mt Frame c th truyn ti i c ), nu mt IP datagram ln hn
MTU th phi phn mnh thnh cc gi nh hn. Qu trnh ngc li s c thc hin ti
pha nhn04/08/2012 70. B giao thc TCP/IPCc giao thc trong b giao thc
TCP/IP Giao thc IP - nh tuyn trong mng IPL chc nng quan trng ca
giao thc IPVic chn tuyn c thc hin theo trnh t sau :Nhn datagram t
cc giao thc lp trn nh TCP, UDPTm trong bng nh tuyn theo a ch chTm
theo defaultNu datagram khng c chuyn tip th gi thng bo li host
unreachable hoc network unreachable04/08/2012 71. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc IP - nh tuyn
trong mng IP IP duy tr mt bng nh tuyn truy nhp khi c gi cn chuyn i
gm cc thng tin :a ch IP cha ch IP ca router k tipFlag : xc nh a ch
ca router k tip l a ch mthost hay mt mngInterface : trn thit b
forward gi qua 04/08/2012 72. B giao thc TCP/IPCc giao thc trong b
giao thc TCP/IP Cc giao thc iu khin ICPM, ARP, RARP Giao thc ICMP
Internet Control Message Protocol : Dng trao i thng tin iu khin dng
s liu, thng bo li v cc thng tin trng thi khc. Giao thc ARP -
Address Resolution protocol : Dng chuyn a ch lp mng (a ch IP) thnh
a ch lp datalink (a ch MAC). Giao thc RARP - Reverse Address
Resolution Protocol: Dng chuyn a ch MAC thnh a ch IP.04/08/2012 73.
B giao thc TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc UDP (
User Datagram Protocol ) L giao thc khng lin kt, cung cp dch v giao
vn khng tin cy. UDP khng c chc nng thit lp v gii phng kt ni, khng c
c ch bo nhn ( ACK), khng sp xp tun t cc n v d liu ( datagram). Khun
dng ca UDP datagram c m t nh sau :04/08/2012 74. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc UDP ( User
Datagram Protocol )04/08/2012 75. B giao thc TCP/IPCc giao thc
trong b giao thc TCP/IP Giao thc UDP ( User Datagram Protocol )
Source Port : 16 bit - S hiu cng ni gi datagram Destination port :
16 bit - S hiu cng ni datagram c chuyn ti Length : di UDP packet
-16 bit- y l di tng cng k c phn header ca gi datagram UDP Checksum
: 16 bit dng kim sot li, nu pht hin li th UDP datagram s b loi b m
khng c thng bo no tr li cho ni gi04/08/2012 76. B giao thc TCP/IPCc
giao thc trong b giao thc TCP/IP Giao thc TCP ( Transmision Control
Protocol ) L mt giao thc hng kt ni, cung cp kh nng chuyn ti d liu
tin cy gia cc h trm trn mng. Thit lp cc kt ni logic gia cc trm trn
mng trc khi thc s truyn d liu ca cc ng dng ( qu trnh thit lp kt ni
3 bc three-way handshake ) TCP thc hin pht hin v sa li ( yu cu pht
li) m bo tin cy ca vic truyn d liu.04/08/2012 77. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc TCP (
Transmision Control Protocol )04/08/2012 78. B giao thc TCP/IPCc
giao thc trong b giao thc TCP/IP Giao thc TCP ( Transmision Control
Protocol ) Source Port : 16 bit - S hiu cng ni gi datagram
Destination port : 16 bit - S hiu cng ni datagram c chuyn ti
Sequence Number : 32 bit - S hiu duy tr s tun t ca cc byte d liu c
truyn, bit SYN c dng trong qu trnh thit lp kt ni Acknowledgment
Number : 32 bit - S hiu duy tr s tun t ca cc byte d liu c truyn,
bit ACK c dng trong qu trnh thit lp kt ni.04/08/2012 79. B giao thc
TCP/IPCc giao thc trong b giao thc TCP/IP Giao thc TCP (
Transmision Control Protocol ) Window size : 16 bit S byte ti a m
trm ch c th nhn, s dng c ch window kim sot lung d liu Checksum : 16
bit M kim sot li cho ton segment, k c header v phn d liu. Option :
di thay i Khai bo ty chn ca TCP, trong thng l kch thc ca i ca 1
segment ( MSS) TCP data: di thay i - Cha d liu ca lp ng dng, kch
thc ngm nh l 536 byte, gi tr ny c th iu chnh bng cch khai bo trong
phn Option04/08/2012 80. B giao thc TCP/IPCc giao thc trong b giao
thc TCP/IP Giao thc TCP ( Transmision Control Protocol ) Host A khi
to kt ni bngvic send n B mt segmentvi bit Synchronize
sequencenumber (SYN) c set yu cu thit lp kt n Host B p ng yu cu
bngcch gi li Host A mtsegmentvi bitACK(Acknowledgment) v bit SYNc
set. Kt ni c thit lp, qu Qu trnh thit lp kt ni TCP ( Three-way
handshake )trnh truyn d liu bt u .04/08/2012 81. B giao thc TCP/IP
Tng quan v b giao thc TCP/IP Cc giao thc ca b giao thc TCP/IP Cc
dch v c bn trn mng TCP/IP04/08/2012 82. B giao thc TCP/IPCc dch v c
bn trn mng TCP/IP Dch v truy nhp t xa - Telnet Mng cng cng M hnh
truy cp s dng dch v Telnet04/08/2012 83. B giao thc TCP/IPCc dch v
c bn trn mng TCP/IP Dch v truy nhp t xa - Telnet Cho php truy cp t
xa vo mt h thng trn mng C th iu khin ton din h thng t xa. ng dng
Telnet s dng giao thc TCP,port 2304/08/2012 84. B giao thc TCP/IPCc
dch v c bn trn mng TCP/IPDch v FTP ( truyn file ) Mng cng cng FTP
Server/clientFTP Server/client FTP client04/08/2012 85. B giao thc
TCP/IPCc dch v c bn trn mng TCP/IP Dch v truy nhp t xa FTP ( truyn
file ) Cho php chuyn cc file d liu trn mng gia cc my tnh khc nhau.
FTP h tr tt c cc nh dng file, k c file nh phn Dch v FTP hot ng theo
m hnh Client-Server, s dng giao thc TCP, port 21 Trn my ch FTP, c
th khai bo kim sot quyn truy nhp, gii hn s truy nhp ti a
v.v.v04/08/2012 86. B giao thc TCP/IPCc dch v c bn trn mng TCP/IP
Dch v World Wide Web (WWW )Mng cng cng Web ServerWeb
client/Browser04/08/2012 87. B giao thc TCP/IPCc dch v c bn trn mng
TCP/IP Dch v World Wide Web (WWW ) Cc trang WWW : Cc ti liu s m dng
ngn ng HTML (HyperText Markup Language ) trnh by ni dung thng tin.
Trn mt trang ti liu www, c th trnh by hnh nh, text, cc lin kt n cc
ti nguyn thng tin khc v.v.v Ngi s dng u cui s cc Web client hay cn
gi l Web browser truy xut cc ti liu www trn mng Mi ti liu www trn
mng c nh danh bi mt URL ( Unique resource location ), cc web client
s gi cc yu cu n cc URL tng ng vi ti liu cn truy xut.04/08/2012 88.
B giao thc TCP/IPCc dch v c bn trn mng TCP/IP Dch v World Wide Web
(WWW ) Dch v web s dng m hnh truy nhp client - server. Web server s
dng giao thc HTTP ( HyperText Transfer Protocol) lp application
chuyn giao cc ti liu HTML trn mng. Giao thc HTTP s dng giao thc TCP
, port 80 lm hot ng tng chuyn vn d liu trn mng04/08/2012 89. B giao
thc TCP/IPCc dch v c bn trn mng TCP/IP Dch v th in t (Email ) Mng
cng cng Mail ServerMail client04/08/2012 90. B giao thc TCP/IPCc
dch v c bn trn mng TCP/IP Dch v th in t (Email ) Cho php trao i cc
thng ip trn mng hay cn gi lth in t. Th in t hot ng theo m hnh
client server , ngi sdng dch v th in t cn c chng mail client, sau
khison ni dung th, xc nh a ch gi th v gi th nmy ch dch v Mail (
Mail Server ) H thng th in t s dng giao thc POP3, IMAP nhn th v v
SMTP gi th i.04/08/2012 91. NI DUNGTng quan mng my tnhB giao thc
TCP/IP Mng LAN v thit k mng LAN Mng WAN v thit k mng WAN04/08/2012
92. Mng LAN v thit k mng LAN Cc khi nim c bn v LAN Cng ngh Ethernet
Cc k thut chuyn mch trong LAN Thit k mng LAN Mt s mng LAN
mu04/08/2012 93. Mng LAN v thit k mng LANCc khi nim c bn v mng
LANCc cu trc mngCc phng thc truy nhp ng truynCc loi ng truyn v
chunCc loi cp dng cho LANCc thit b kt ni trong LAN04/08/2012 94.
Mng LAN v thit k mng LANCc khi nim c bn v mng LANKhi nim : H thng c
thit k kt ni cc my tnh thit b khc nhau cng hot ng trong mt khu vc a
l nhCu trc mng : Dng hnh sao Star Topology Dng bus Bus Topology Dng
vng Ring Topology Dng kt hp Mesh Topology04/08/2012 95. Mng LAN v
thit k mng LANCc khi nim c bn v mng LANCu trc Dng Star : u im Cc
thit b kt ni mng clp, do mt thit b hng - >mng vn hot ng uc Cu
trc n gin.D m rng, thu hp. Nhc im Single point of failure Khong cch
t mi my ntrung tm ngn (100m)04/08/2012 96. Mng LAN v thit k mng
LANCc khi nim c bn v mng LAN Dng Bus : u im : t cp, d lp t, gi thnh
r Nhc im : n tc lu lng chuyn trong mng ln Kh pht hin h, mun sa phi
ngng ton b h thng04/08/2012 97. Mng LAN v thit k mng LANCc khi nim
c bn v mng LAN Dng Ring : u im C th ni rng vi cp t hn hai kiu trn
Mi trm c th t tc ti a khi truy cp Nhc im : ng dy khp kn, nu ngt ti
mt v tr th ton mng ngng hot ng04/08/2012 98. Mng LAN v thit k mng
LANCc khi nim c bn v mng LANDng Mesh : u im : Mi thit b u c lin kt
im- im n cc thit b khc m bo QoS, security, dpht hin v c lp li Nhc
im : t tin, kh ci t04/08/2012 99. Mng LAN v thit k mng LANCc loi
loi cp dng trong LAN Cp xon Cc i cp ng xon vo nhau nhm gim nhiu in
t Loi C v bc (STP Shield Twisted Pair) Khng v bc (UTP- Unshield
Twisted Pair) km hn cp STP v kh nng chng nhiu v suy hao04/08/2012
100. Mng LAN v thit k mng LANCc loi loi cp dng trong LAN Cp xon gm
cc loi Cat 1 & Cat 2 : truyn thoi v cc ng truyn tc thp Cat 3 :
truyn d liu 16Mb/s, chun ca mng in thoi Cat 4 : dng cho ng truyn
20Mb/s Cat 5 : dng cho ng truyn 100Mb/s Cat 6 : dng cho ng truyn
300Mb/s04/08/2012 101. Mng LAN v thit k mng LANCc loi loi cp dng
trong LAN Cp ng trc Gm 2 dy dn, mt dy dn trung tm v mt dy bao boc
bn ngoi C suy hao t hn so vi cc loi cp ng khc Gm 2 loi :Thin
Ethernet v Thick Ethernet04/08/2012 102. Mng LAN v thit k mng LANCc
loi loi cp dng trong LAN Cp si quang Di thng ln, cho php tn hiu i
xa vi suy hao thp, t b nh hng bi nhiu t Kh lp t, gi thnh
cao04/08/2012 103. Mng LAN v thit k mng LANCc thit b kt ni trong
LAN Repeater : Hot ng ti lp 1 Nhim v : khuch i tn hiu b suy hao,
khi phc tn hiu ban u m rng khong cch hot ng. Loi b nhiu, mo
Repeater04/08/2012 104. Mng LAN v thit k mng LANCc thit b kt ni
trong LAN Repeater :04/08/2012 105. Mng LAN v thit k mng LANCc thit
b kt ni trong LAN Hub : Hot ng ti lp 1, hot ng nh repeater nhiu cng
L im tp trung kt ni trung tm ca mng HUB04/08/2012 106. Mng LAN v
thit k mng LANCc thit b kt ni trong LAN Hub :HUB04/08/2012 107. Mng
LAN v thit k mng LANCc thit b kt ni trong LAN Bridge Hot ng ti lp 2
Nhim v : ni hai mng ging nhau hoc khc nhau, s dng a ch MAC
Bridge04/08/2012 108. Mng LAN v thit k mng LANCc thit b kt ni trong
LAN BridgeBridge04/08/2012 109. Mng LAN v thit k mng LANCc thit b
kt ni trong LAN Switch : Hot ng ti lp 2 , hot ng nh Bridge nhng c
nhiu port Nhim v : S dng a ch Mac, thut ton Spanning Tree LAN
Switch04/08/2012 110. Mng LAN v thit k mng LANCc thit b kt ni trong
LAN Switch :LAN Switch04/08/2012 111. Mng LAN v thit k mng LANCc
thit b kt ni trong LAN Router : Hot ng ti lp network Nhim v: tm ng
i tt nht cho gi bng cc thut ton nh tuyn, a ch IPRouter04/08/2012
112. Mng LAN v thit k mng LANCc thit b kt ni trong LAN Router
:Router LAN LAN Switch Switch04/08/2012 113. Mng LAN v thit k mng
LANCc thit b kt ni trong LAN Layer 3 switch : Hot ng ti lp 3 C th
chy cc giao thc nh tuyn lp mng, mt dng tng tnh nng cho routerLayer
3LAN Switch04/08/2012 114. Mng LAN v thit k mng LANCc phng thc truy
nhp ng truyn CSMA/CD Token passing FDDI04/08/2012 115. Mng LAN v
thit k mng LANCc phng thc truy nhp ng truyn CSMA/CD (Carrier Sense
Multiple Access with collision Detection) Phng php truy nhp s dng
trong mng dng BUS Ti mt thi im ch c mt trm c pht d liu bng cch lng
nghe, xc nh ng truyn ri Collision : 2 hoc nhiu trm cng pht ->
gim tc h thng04/08/2012 116. Mng LAN v thit k mng LANCc phng thc
truy nhp ng truyn CSMA/CD (Carrier Sense Multiple Access with
collision Detection) Cc nguy c xy ra collision : S trm lm vic nhiu
Chiu di mng ln Chiu di gi tin ( MTU) ln04/08/2012 117. Mng LAN v
thit k mng LANCc phng thc truy nhp ng truyn Token Passing Phng php
truy nhp s dng trong mng dng RING S dng th bi (token) cp quyn truy
nhp Khng xy ra ng d liu -> mng vn hot ng tt khi lu lng ln C th
xy ra vic mt token hoc token bo bn di chuyn khng dng04/08/2012 118.
Mng LAN v thit k mng LANCc phng thc truy nhp ng truyn FDDI Dng cho
mng cu trc vng, chuyn th bi tc cao bng cp quang S dng h thng chuyn
th bi trong vng kp, gm 2 lung ging nhau theo 2 hng ngc
nhau04/08/2012 119. Mng LAN v thit k mng LANCc loi ng truyn v cc
chuyn Chun IEEE IEEE 802.0 - LAN and MAN (Metropolitan Area
Network) IEEE 802.1 - Higher level interface standard IEEE 802.1k -
Supplement to LAN and MAN management standard (6/93) IEEE 802.2 -
Logical link control standard IEEE 802.3 - CSMA/CD standard IEEE
802.4 - Token-passing bus standard IEEE 802.5 - Token-passing ring
standard04/08/2012 120. Mng LAN v thit k mng LANCc loi ng truyn v
cc chuyn Chun CCITT Chun cp, giao tip EIA nh ngha giao tip gia
modem v my tnh : RS-232; RS-449; RS-422 Cc chun V22, V28,
V3504/08/2012 121. Mng LAN v thit k mng LANCng ngh Ethernet Gii
thiu chung Cc c tnh chung ca Ethernet Cc loi mng Ethernet04/08/2012
122. Mng LAN v thit k mng LANCng ngh Ethernet Cc c tnh chung ca
Ethernet Chun hot ng 2 lp OSI : Data link v physical link. Tng t
tiu chun IEEE 802.3 ( khc nhau cht t cu trc cc frame d liu ) S dng
CSMA/CD lm phng thc truy nhp ng truyn.04/08/2012 123. Mng LAN v
thit k mng LANCng ngh Ethernet Cc c tnh chung ca Ethernet Cu trc
khungEthernetIEEE 802.304/08/2012 124. Mng LAN v thit k mng LANCng
ngh Ethernet Cc c tnh chung ca Ethernet Cu trc khung PREAMBLE - 62
bits, allows the Physical Layer Signalling (PLS) circuitry to
synchronize with the receive frame timing circuitry. SYNC
(Synchronize) - 2 bits, indicates that the data portion of the
frame will follow. DA (Destination Address) and SA (Source Address)
- 48 bits, Media Access04/08/2012 125. Mng LAN v thit k mng LANCng
ngh Ethernet Cc c tnh chung ca Ethernet Cu trc khung Control (MAC)
address. Three types of destination addressing aresupported:
Individual: The DA contains the unique address of one node on the
network. Multicast: If the first bit of the DA is set, it denotes
that a group address is being used. The group that is being
addressed will be determined by a higher layer function. Broadcast:
When the DA field is set to all 1 s, it indicates a broadcast.A
broadcast is a special form of multicast. All nodes on the network
must be capable of receiving a broadcast.04/08/2012 126. Mng LAN v
thit k mng LANCng ngh Ethernet Cc c tnh chung ca Ethernet Cu trc
khung Cu trc khung dng cho mi tc t 10Mbs n 10000 Mbits Khung
Ethernet c di khng nh hn 48 octec, khng ln hn 1518 octec04/08/2012
127. Mng LAN v thit k mng LANCng ngh Ethernet Cc c tnh chung ca
Ethernet Cu trc i ch Ethernet Gm 48 bit c n nh khi thit b c sn xut
L a ch duy nht Gm 2 phn :3 Octec u : xc nh hng sn xut3 Octect sau :
do nh sn xut xc nh V d : 00-00-0c-12-34-5604/08/2012 128. Mng LAN v
thit k mng LANCng ngh Ethernet Cc c tnh chung ca Ethernet Cc loi
khung Khung unicast : khung c truyn n mt trm xc nh Khung broadcast:
c a ch MAC FF-FF-FF-FF-FF-FF gi cho tt c cc trm. Khung multicast :
gi n mt s trm nht nh.04/08/2012 129. Mng LAN v thit k mng LANCng
ngh Ethernet Cc c tnh chung ca Ethernet Nguyn tc hot ng04/08/2012
130. Mng LAN v thit k mng LANCng ngh Ethernet Cc c tnh chung ca
Ethernet Nguyn tc hot ng Cch truyn v pht hin xung t : Da trn phng
thc CSMA/CD Khi pht hin ng truyn ri : my ch thi gian IFG (thi gian
mt giao tip mng khi phc sau khi nhn khung - bng 96 ln thi gian ca 1
khung) ri bt u truyn Khi ang truyn khung, pht hin xung t my truyn
tip 32bit d liu (bit bo hiu tc nghn) v ch mt thi gian ngu
nhin04/08/2012 131. Mng LAN v thit k mng LANCng ngh Ethernet Cc c
tnh chung ca Ethernet Nguyn tc hot ng Khi mt trm thnh cng 512bit (
tng ng vi mt khung Ethernet nh nht)khng tnh trng preamble xem nh
knh b chim Khi nim v Slot time : Khong thi gian ng vi thi gian ca
512 bit (64 octec) di chuyn t mt trm n mt trm xa nht trong min ng c
gi l slotTime Mt mng Ethernet thit k ng phi tho mn : Thi gian tr
tng cng ln nht truyn khung Ethernet t trm ny n trm kia phi nh hn
slotTime.04/08/2012 132. Mng LAN v thit k mng LANCng ngh Ethernet
Cc c tnh chung ca Ethernet Nguyn tc hot ng Tham s Slot
Time04/08/2012 133. Mng LAN v thit k mng LANCng ngh Ethernet Cc loi
mng Ethernet H thng 10Mb/s 10Base5 : Tc 10M, bng tn c s, chiu di ti
a l 500m, s dng cp ng trc loi dy, u ni loi N 10Base2: Tc 10M, bng
tn c s, chiu di ti a cho 1 on mng l 200m (185m), s dng cp ng trc
loi mng ( RG-58A/U), u ni BNC. 10BaseT : Tc 10M, bng tn c s, chiu
di ti a cho 1 on mng l 100m, S dng cp xon i ( T= Twisted ), loi cp
0.4mm,0.5, 0.5 mm ng knh, u ni RJ-45.04/08/2012 134. Mng LAN v thit
k mng LANCng ngh Ethernet Cc loi mng Ethernet H thng 100Mb/s
100BaseT : Tc 100M, bng tn c s, s dng cp xon i, u ni RJ-46 100BaseX
: Tc 100, s dng k thut m ho c bit ca chun FDDI, bao gm 100BaseFX (
cp quang a mode v 100BaseTx ( cp ng xon i , RJ-45 ) 100BaseT2 v
100BaseT4 : t s dng04/08/2012 135. Mng LAN v thit k mng LANCng ngh
Ethernet Cc loi mng Ethernet H thng Giga Ethernet 1000BaseX : S dng
chun m ho c bit 8B/10B c dng trong h thng kt ni tc cao Fiber
channel ) gm : 1000 Base-SX ( s dng cp si quan bc sng ngn ); 1000
Base-LX ( s dng si quang bc sng di v 1000 Base-CX ( s dng cp ng )
1000BaseT : Tc Giga bit, bng tn c s trn cp xon ng loi Cat5 tr ln,
RJ4504/08/2012 136. Mng LAN v thit k mng LANCc k thut chuyn mch
trong LAN Phn on mng trong LAN : Mc ch : phn chia bng thng hp l nhm
s dng hiu qu bng thng p ng yu cu cc ng dng khc nhau Min xung t (
bandwidth domain) : l vng mng m cc khung pht ra c th gy xung t, cc
trm chia s chung bng thng Min qung b ( broadcast domain) : l tp hp
cc thit b c th nhn khung qung b t mt thit b trong nhm pht
ra.04/08/2012 137. Mng LAN v thit k mng LANCc k thut chuyn mch
trong LAN Phn on bng repeater : M rng collision domain Nhc im : hn
ch khong cch xa nht gia hai trm, tng gi tr tr truyn khung04/08/2012
138. Mng LAN v thit k mng LANCc k thut chuyn mch trong LAN Phn on
bng bridge Lin kt cc collision domain trong cng mt broadcast domain
u im : mi collision domain c mt slotTime ring nn m rng khong cch
trong tng min Nhc im : ch hot ng hiu qu theo quy tc 80/2004/08/2012
139. Mng LAN v thit k mng LANCc k thut chuyn mch trong LAN Phn on
bng router To ra cc collision domain v broadcast domain ringbit
Router LAN Switch04/08/2012 140. Mng LAN v thit k mng LANCc k thut
chuyn mch trong LAN Phn on bng switch To ra cc collision domain
ring v mt hoc nhiu broadcast domain ring.LAN Switch04/08/2012 141.
Mng LAN v thit k mng LANCc k thut chuyn mch trong LAN Cc ch chuyn
mch trong LAN : gm 2 loi Store and forward switching : Nhn ton b
khung ti, kim tra s ton vn ca khung, sau mi chuyn tip khung u im :
khung li khng chuyn t phn on ny sang phn on khc Nhc im : c tr nht
nh04/08/2012 142. Mng LAN v thit k mng LANCc k thut chuyn mch trong
LAN Cc ch chuyn mch trong LAN : gm 2 loi Cut through switching : c
a ch ch trong header ca khung ri chuyn n cng tng ng, khng kim tra s
ton vn Nhanh hn ch Store and forward switching04/08/2012 143. Mng
LAN v thit k mng LANCc k thut chuyn mch trong LAN Mng LAN o ( VLAN)
Khi nim : Vic phn on mng ch phn on cc collission domain. Mt VLAN l
mt broadcast domain c to bi mt hoc nhiu switch. u im : To ra cc nhm
lm vic khng ph thuc thit b, v tr a l Kim sot c cc broadcast domain,
bo mt S dng thay cc router -> gi thnh r, hiu sut cao Nhc im :
cha c chun chnh thc, cn ph thuc vo nh sn xut thit b04/08/2012 144.
Mng LAN v thit k mng LANCc k thut chuyn mch trong LAN Mng LAN o (
VLAN) Thit k VLAN Xc nh nhm logic :Theo nhm lm vicTheo dch v Xc nh
kh nng cc thit b Xc nh a ch IP, VLAN ID, cu hnh04/08/2012 145. Mng
LAN v thit k mng LANK thut thit k mng LAN Mt s nguyn tc thit k mng
: Cc nguyn tc gim Collision trn mng Nguyn tc phn on mng : Nguyn tc
80/20 Nguyn tc 5-4-304/08/2012 146. Mng LAN v thit k mng LANK thut
thit k mng LAN Cc m hnh mng c bn M hnh phn cp : Cu trc :Core Layer,
Distribution Layer, Access Layer. nh gi gi thnh :Gi thnh thp, D ci
t, D m rng, c lp li.04/08/2012 147. Mng LAN v thit k mng LANK thut
thit k mng LAN M hnh c bn M hnh secure : LAN c lp gia mng cng tc vi
mng bn ngoi Router inside c ci filter packet gia DMZ v mng cng tc
Router outside c ci filter packet gia DMZ v mng ngoi04/08/2012 148.
Mng LAN v thit k mng LANK thut thit k mng LAN Cc yu cu thit k Yu cu
k thut Yu cu v hiu nng Yu cu v ng dng Yu cu v qun l mng Yu cu v an
ninh mng Yu cu v ti chnh04/08/2012 149. Mng LAN v thit k mng LANK
thut thit k mng LAN Cc bc thc hin mt thit k Phn tch yu cu La chn
phn cng : thit b, cp, cng ngh kt ni La chn phn mm nh gi kh nng Tnh
ton gi thnh Trin khai pilot04/08/2012 150. Mng LAN v thit k mng
LANMt s mng LAN mu Cc bc thc hin mt thit k Phn tch yu cu La chn phn
cng : thit b, cp, cng ngh kt ni La chn phn mm nh gi kh nng Tnh ton
gi thnh Trin khai pilot04/08/2012 151. NI DUNG Tng quan v mng my
tnh B giao thc TCP/IP. Gii thiu mng LAN v thit k mng LAN Gii thiu
mng WAN v thit k mng WAN04/08/2012 152. PHN 4 : MNG WAN & THIT
K Tng quan v WAN Thit k mng WAN Phn tch mt s WAN mu04/08/2012 153.
PHN 4 : MNG WAN & THIT K Tng quan v WAN Thit k mng WAN Phn tch
mt s WAN mu04/08/2012 154. Tng quan v WANKhi nimMt s cng ngh kt ni
c bnGiao thc kt ni WAN trong TCP/IPCc thit b dng cho kt ni WANnh gi
so snh cc cng ngh kt ni04/08/2012 155. Tng quan v mng WAN Khi nim :
WAN l mng thit lp lin kt cc my tnh, hay cc thit b mng khong cch xa
v mt a l C th kt ni thnh mng ring ca mt t chc hay kt ni qua nhiu h
tng chung ca cc cng ty vin thng Cc cng ngh kt ni WAN lin quan n 3
lp ca m hnh OSI04/08/2012 156. Tng quan v mng WAN Cc li ch khi kt
ni WAN : Cung cp cc dch v realtime, trao i d liu a phng tin nh hnh
nh, m thanh, hp hi ngh Chia s, trao i ti nguyn trn mng d dng Chnh
xc v hiu qu cao do thng tin c x l bi nhiu my tnh, nhiu s gim st H
tr cng tc qun l hng n nn kinh t in t, chnh ph in t04/08/2012 157.
Tng quan v WANKhi nimMt s cng ngh kt ni c bnGiao thc kt ni WAN
trong TCP/IPCc thit b dng cho kt ni WANnh gi so snh cc cng ngh kt
ni04/08/2012 158. Tng quan v mng WAN Cc cng ngh kt ni trong
WANChuyn mch knh - Cricuit Switching NerworkChuyn mch gi Packet
Switching NetworkKt ni WAN dng VPN04/08/2012 159. Tng quan v mng
WAN Mng chuyn mch : Mc ch : Thc hin vic lin kt gia hai im nt bng mt
ng tm thi hoc dnh ring phc v cho vic thit lp kt ni. Chuyn mch c thc
hin bi cc thit b chuyn mch trong mng Phn loi : Chuyn mch knh Chuyn
mch gi04/08/2012 160. Tng quan v mng WANChuyn mch knh : Nguyn tc
hot ng : Kt ni c thit lp gia 2 node mng trc khi bt u truyn d
liu04/08/2012 161. Tng quan v mng WANChuyn mch knh : Phn loi :
Chuyn mch tng t - analog Chuyn mch s - digital : ISDN Knh thu ring
Leased Line xDSL04/08/2012 162. Tng quan v mng WANChuyn mch tng t -
analog : c thc hin qua mng in thoi Dng modem chuyn cc tn hiu s t my
tnh thnh tn hiu tng t truyn trn cc knh in thoi -> kt ni quay s
(dial up)04/08/2012 163. Tng quan v mng WAN Chuyn mch s - digital :
ISDN Intergrated Services Digital Network: Mng vin thng tch hp a
dch v cho php s dng nhiu dchv trn ng dy in thoi04/08/2012 164. Tng
quan v mng WAN ISDN Intergrated Services Digital Network: Gm 2 loi
knh : Knh d liu (Data Channel): tn k thut B, tc 64Kbps,mang thoi, d
liu Knh kim sot (Control channel); tn k thut D, tc 16Kbps (Basic
rate) v 64 Kbps ( Primary Rate) mang tn hiubo hiu thit lp, gim st
cuc gi c chia lm 2 loi : Basic Rate : 2B+D tc 128 Kbps Primary Rate
: 64B+D tc T1; 20B+D tc E104/08/2012 165. Tng quan v mng WAN ISDN
Intergrated Services Digital Network : Cc thit b : ISDN adapter
ISDN Router nh gi : t hn in thoi nhng bng thng cao hn Hnh thc kt ni
lin tnh r Yu cu tng i in thoi phi h tr kt ni ISDN04/08/2012 166.
Tng quan v mng WAN Leased Line Network : Cch kt ni dnh ring gia 2
im c khong cch ln Khi s lng kt ni tng cao, ti cc nt mng s dng k
thut ghp knh. C hai phng thc ghp knh chnh : Ghp knh theo tn s : Ghp
knh theo thi gian :04/08/2012 167. Tng quan v mng WANLeased Line
Network : Hin nay leased line c phn thnh hai lp chnh Tx theo chun
ca M Ex theo chun ca Chu u, Nam M, Mhico Loi knh Dung lng Ghp knh
T056Kbps 1 ng thoi T11.544 Mbps 24 ng T0 T26.312 Mbps 4 ng T1
T344.736 Mbps28 ng T1 T4274.176 Mbps 168 ng T104/08/2012 168. Tng
quan v mng WANxDSL Digital Subscriber Line: Cng ngh ng dy thu bao s
xDSL l k thut truyn dn d liu tc cao trn i dy cp ng truyn thng ng
dng : Pht cc ng dng gia cc users Hi tho video Truy cp Internet tc
cao IP Fax Kt ni gia cc mng LAN, kt ni WAN Interactive
Multimedia04/08/2012 169. Tng quan v mng WAN xDSL Digital
Subscriber Line: Cng ngh ng dy thu bao s Cu trc h thng : Modem xDSL
DSLAM : POT splitter (nu c h tr thoi) BRAS H thng truyn
dn04/08/2012 170. Tng quan v mng WANxDSL Digital Subscriber Line:
Cng ngh ng dy thu bao s x ch cc loi k thu t DSL khc nhau. Mi loi c
nhng gii hn, tc v cc kh nng khc nhau Chia lm hai nhm chnh l i xng v
bt i xng i xng : HDSL, IDSL, SDSL, HDSL2, G.SHDSL. Bt i xng :
ADSL,04/08/2012 171. Tng quan v mng WANH HDSL (High speed DSL)
:04/08/2012 172. Tng quan v mng WAN G.SHDSL (Single pair High
bit-rate DSL) : Chun i xng cho php truyn vi tc 2.3Mbit/s cho c hai
hng. Thch hp cho cc ng dng i hi bng thng cao trn c hai hng, thay th
cho cc dch v T1, E1 vn t tin, kh bo dng ng dng: cung cp dch v
Internet, truyn s liu vi nhiu loi tc 786kbit/s, 1.544Mbit/s,
2.3Mbit/s04/08/2012 173. Tng quan v mng WANG.SHDSL G.SHDSL ang c ch
l do : c chun ho Ci thin tc hn v s dng bng tn hiu qu hn so viHDSL,
SDSL, HDSL2 C ly truyn dn c ci thin Bng ph tng thch vi
ADSL04/08/2012 174. Tng quan v mng WAN ADSL ( Asymmetric Digital
Subscriber Line ) K thut bt i xng, tc hng xung t 1,5 n 8Mbps, hng
ln t 16 n 640Kbits. H tr POT trn cng ng dy u im : Tc cao, thch hp
cho truy cp Internet Chi ph thit b u cui, lp t, bo dng thp. Kt ni
lin tc, dnh ring. Nhc im : Ph thuc tc gia khong cch t nh thu bao n
DSLAM04/08/2012 175. Tng quan v mng WANChuyn mch gi : Nguyn tc hot
ng : Chia d liu thnh cc gi trc khi pht04/08/2012 176. Tng quan v
mng WANChuyn mch gi : Phn loi : Hng kt ni connection : xc nh ng i
bng mt gi,thng tin c lu trong cc chuyn mch trn ng i, cc gich cn lu
ID Hng khng kt ni connectionless : mi gi phi mang y thng tin a ch
ng dng : Cng ngh ATM Cng ngh Frame Relay Cng ngh SMDS04/08/2012
177. Tng quan v mng WAN Cng ngh ATM : ATM l k thut c th truyn thoi,
video v d liu qua cc mng private v mng public. c xy dng da trn kin
trc cell, l phng thc truyn khng ng b n v d liu l cell. Mt cell c di
c nh 53 byte, 5 byte header, 48 byte cha d liu. Kch thc cell nh hn
cc frame ca Frame Relay, X25 nn hiu qu hn trong vic x l chuyn mch
-> mng ATM l mng tc cao, iu khin qu trnh chuyn mch d
dng04/08/2012 178. Tng quan v mng WAN Cng ngh Frame Relay : Tng
quan : Frame Relay l cng ngh truyn dn tc cao, trong d liu c ng thnh
cc frame v c truyn i trn mng Frame Relay cung cp mi trng kt ni cc
mng LAN, mng Internet v cc ng dng thoi mt cch tin cy hiu qu Vi mt
kt ni vt l, Frame Relay cung cp kh nng thit lp nhiu knh o kt ni n
mt hoc nhiu v tr khc nhau C hai loi knh o: SVC (Switch Virtual
Circuit) v PVC (Permanent Virtual Circuit )04/08/2012 179. Tng quan
v mng WANCng ngh Frame Relay : Cc thit b dng cho kt ni Frame Relay
: Thit b truy nhp mng FRAD : bridge, router LAN Thit b mng FRND :
cc switch, tng i chuyn mch frame hoc cell04/08/2012 180. Tng quan v
mng WANCng ngh Frame Relay : Frame Relay c mt c trng ln l cho php
ngi s dng dng tc cao hn mc h ng k trong mt khong thi gian nht nh
Frame Relay khng s dng th tc sa li v iu khin lu lng. Cc frame c li
u b loi b. m bo cc frame i ng a ch, nguyn vn, nhanh chng s dng cc
thng s trong a ch ca frame.04/08/2012 181. Tng quan v mng WANCc
giao thc :Application Frame Relay hot ng ti hai lp ca m hnh
OSIPresentation Lp vt l : s dng cc chun giao tip Session thng thng
nh V35, X21bis Transport Lp datalink : giao thc LAP-F pht trin t
giao thc LAPD quy nh cu Network trc frame d liu, cch hot ng Data
link Physiscal04/08/2012 182. Tng quan v mng WANLAP-F v cu trc
khung : LAP-F quy nh 2 cu trc khung : C Plane Frame dng cho qun l
iu khin Flag FCSInformationControl Address Flag U Plane Frame dng
trao i thng tin ngi s dng FlagFCSInformationAddress Flag04/08/2012
183. Tng quan v mng WAN ngha cc trng trong cu trc a ch FR : DLCI :
dng nh tuyn cho cc frame, a ch dng 10 bit FECN : thng bo nghn cho
pha thu BECN : thng bo nghn cho pha pht DE : nh du Frame c th b loi
bFlagFCS Information Address Flag DLCI FECN BECNDE E/ADLCIC/R
E/A04/08/2012 184. Tng quan v mng WAN LMI Local Management
Interface L chun bo hiu gia CPE v Frame Relay Switch, chu trch nhim
qun l kt ni v duy tr trng thi gi cc thit b FRAD v FRND CIR
Committed information rate Tc cam kt, l tc khch hng t mua v nh cung
cp cam kt phi t c trong thi gian khng tc nghn CBIR Committed burst
information rate Khi lng truyn tin qu ln, khch hng c php truyn vi
tc CBIR> CIR trong mt khong thi gian Tc04/08/2012 185. Tng quan
v mng WANCng ngh Frame Relay : u im: Tc truyn d liu cao, c th t ti
a 45Mbps tr thp thch hp cho cc ng dng thi gian tht (real time) Tnh
bo mt cao S dng bng thng linh hot, hiu qu cao ng dng : Kt ni LAN
LAN Kt ni WAN Voice over Frame Relay04/08/2012 186. Tng quan v
WANKhi nimMt s cng ngh kt ni c bnGiao thc kt ni WAN trong TCP/IPCc
thit b dng cho kt ni WANnh gi so snh cc cng ngh kt ni04/08/2012
187. Tng quan v mng WANGiao thc kt ni WAN trong TCP/IP giao thc PPP
Khi nim : L giao thc dng ng gi d liu cho thng tin im - im L mt chun
gn v qun l a ch IP, bt ng b, nh hng bit, kim tra cht lng kt ni, pht
hin li04/08/2012 188. Tng quan v mng WANGiao thc kt ni WAN trong
TCP/IP giao thc PPP Cc thnh phn : HDLC : phng php ng gi cc khung d
liu trn cc lin ktim-im LCP: thit lp, cu hnh, duy tr v kt thc kt ni
point to point NCP : lp cu hnh cc giao thc tng mng Nguyn tc lm vic
: Gi khung LCP cu hnh, kim tra datalink Thit lp lin kt Gi khung NCP
chn v cu hnh cc giao thc lp mng04/08/2012 189. Tng quan v mng
WANGiao thc kt ni WAN trong TCP/IP giao thc PPP Yu cu lp vt l : Lm
vic vi nhiu giao din DTE/DCE : EIA/TIA-232-C; EIA/TIA-422, V.35. Yu
cu lp PPP link : Dng cu trc khung HDLC Giao thc iu khin LCP : gm 4
giao on Thit lp v cu hnh kt ni Xc nh cht lng kt ni Cu hnh lp mng
NCP Kt thc04/08/2012 190. Tng quan v WANKhi nimMt s cng ngh kt ni c
bnGiao thc kt ni WAN trong TCP/IPCc thit b dng cho kt ni WANnh gi
so snh cc cng ngh kt ni04/08/2012 191. Tng quan v mng WANCc thit b
dng cho kt ni WAN :04/08/2012 192. Tng quan v mng WAN Cc thit b dng
cho kt ni WAN : Router : c c interface LAN v WAN Chuyn mch WAN (WAN
switch) hot ng ti lp 2server : l im tp trung cho php kt ni Access
WAN qua PSTN, ISDN hay PDN. ISDN terminal Adaptor : l thit b u cui
kt ni PC hay LAN vo mng ISDN04/08/2012 193. Tng quan v mng WANModem
: n :l thit b chuyn tn hiu digital t my tnh thnh tn hiu analog
truyn qua ng in thoi v ngc li Chun : V42, V42BIS, X2, K56Flex, V90,
V92.04/08/2012 194. Tng quan v mng WANCSU/DSU (Channel Service
Unit/ Data Service Unit): n : l thit b phn cng ti u cui ca knh thu
ring lm nhim v chuyn d liu trn WAN sang d liu trn Lan v ngc li Chun
: RS-232C, RS-449 hay V.xx04/08/2012 195. Tng quan v WANKhi nimMt s
cng ngh kt ni c bnGiao thc kt ni WAN trong TCP/IPCc thit b dng cho
kt ni WANnh gi so snh cc cng ngh kt ni04/08/2012 196. Tng quan v
mng WAN nh gi cc cng ngh dng cho kt ni WANKt ni PSTN : u im :n gin,
d thc hin Nhc im :tc , tin cy thpKt ni ISDN : u im : n nh hn qua
PSTN, Nhc im : chi ph cao hn PSTN, khng ph binKt ni Frame Relay : u
im : Nhc im :Kt ni xDSL :04/08/2012 197. Thit k WAN Cc m hnh WAN Cc
m hnh an ninh mng Phn tch mt s mng WAN mu04/08/2012 198. Thit k
WANCc m hnh WAN : M hnh phn cp : thng gm 3 tng : Backbone : kt ni
cc trungtm mng ca tng vng(NOC) Distribution :kt ni cc POPhay nhnh
mng vo NOC. Access : kt ni n ngi sdng.04/08/2012 199. Thit k WANCc
m hnh WAN : M hnh cu trc : m t cu trc, cch b tr cc phn t ca WAN Cc
thnh phn : NOC trung tm mng POP LAN, PC u im : thit k, t chc kho
st, phn tch, qun l hiu qu04/08/2012 200. Thit k WAN Cc m hnh an
ninh mng Khi nim an ninh an ton mng: Ti nguyn cn bo v : Dch v mng
ang trin khai Cc thng tin quan trng mng ang lu gi Cc ti nguyn phn
cng v phn mm ca mng Vn an ninh an ton mng khi thc hin kt nI WAN th
hin : tnh bo mt, tnh ton vn, tnh sn dng Vn an ninh an ton mng qua
mI quan h gia ngI dng v h thng th hin bng phng thc xc thc, cho php
v t chI (AAA)04/08/2012 201. Thit k WANCc kiu tn cng mng WAN Thm d
Probe : th truy cp t xa vo mt h thng, xem xt cc thng tin ca h thng
Qut Scan: dng mt cng c t ng thm d tm l hng an ninh mng. Thm nhp ti
khon Account Compromise : dng mt ti khon khng cho php. Thm nhp quyn
qun tr - Root Compromise : vo ti khon c quyn ln nht ca h thng Thu
lm cc gi tin Packet sniffer : s dng chng trnh bt cc gi tin ly thng
tin ti khon, mt khu T chi dch v - Denial of Service : ngn cn khng
cho ngI dng hp php s dng dch v04/08/2012 202. Thit k WANM hnh an
ninh mng : Xydng m hnh an ninh an ton khi kt ni WAN : cn xc nh Xc
nh cn bo v ci g ? Bo v cc loi tn cng no ? Xc nh cc mi e da an ninh
c th Xc nh cc cng c bo m an ninh Xy dng m hnh an ninh an
ton04/08/2012 203. Thit k WAN Mt s cng c trin khai m hnh an ninh an
ton mng H thng Three Part Firewall System H thng pht hin t nhp mng
H thng pht hin l hng an ninh04/08/2012 204. Thit k WANBo mt thng
tin trn mng cng ngh m ho Mc ch: ngn hacker khai thc thng tin t cc
gi thu c khi ang truyn trn mng -> m ho Cc h m kho c chia thnh
hai lp chnh : M i xng Kho m b mt : DES (Data Encryption Standard) :
m ho khi d liu 64bit dng kho56bit IDEA ( International Data
Encryption Standard): s dng kho 128bit chuyn khi d liu 64bit thnh
on m c di 64bit ng dng : trong qun i, ngn hng, cc h thng c an ton
cao Kh khn : vn trao i kho thc hin trn mt knh thu ring04/08/2012
205. Thit k WAN Cc h m kho :H m bt i xng kho m cng khai: giI quyt
kh khn ca kho quy c l s phn b kho v ch k sHot ng : Khi to h thng u
cuI : to mt cp kho K1 v K2 m ho vgiI m thng tin. K1 b mt, K2 cng
khai M ho v giI m thng tin : A mun gI thng tin cho B, A m hobng kho
cng khai ca B, B giI m bng kho b mt ca B Ch k s : A m ho ch k bng
kho b mt gI cho B, B nhn vgiI m bng kho cng khai ca A Chuyn I
kho04/08/2012 206. Thit k WAN M hnh ng dng : M hnh xy dng trn cc ng
dng kt nI WAN Phn tch yu cu v hiu nng Phn tch yu cu v qun l mng Phn
tch cc yu cu v an ton an ninh mng Phn tch cc yu cu v ng
dng04/08/2012 207. Thit k WANCc bc la chn cng ngh kt nI : Chn cng
ngh kt nI Xc nh nh cung cp La chn cc thit b phn cng : La chn phn mm
La chn h iu hnh mng La chn h qun tr c s d liu La chn cc phng thc
giao tc mng nh gi kh nng v trin khai th nghim04/08/2012 208. PHN 4
: MNG WAN & THIT K Tng quan v WAN Thit k mng WAN Phn tch mt s
WAN mu04/08/2012
