.
(frame switching)
(Ethernet, Token Ring),
-
,
(full-duplex) -
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Spanning Tree
" "
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?
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-
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InStat Dell'Oro Group 1996 1998 :
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Fast Ethernet |
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, Ethernet, . , : . , , .
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. 2.3.
Ethernet
, , . , - , . Ethernet - 30 . 3-4 Ethernet 10 / 14880 .
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2 , 2. , 1 1, . , .
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. 2.16.
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, , , ATM - . .25, - frame relay .
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ABR - . - , . ABR , , PCR, - MCR.
ABR- , , , .
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RMON MIB ( Traffic Matrix), .
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, Ethernet ( Fast Ethernet, Ethernet) FDDI Token Ring ( ) :
Spanning Tree (STA) . , . , , , .
STA ( ) . - Spanning Tree ( ), . . STA - , , , . - , , -, , , -, , .
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, , .
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- , .
- - , , . , , . , , , - - .
(Virtual LAN, VLAN) . , , , . , , - , . , , .
, (broadcast domain), , Ethernet.
, . , . ( 4.15).
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, . . Vgate RND, 4.21.
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, 64 -, 64 .
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, .
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, .
, . 100 /c. .
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, . - , , ( ). .
: 3Com LinkSwitch 500.
: 3Com LinkSwitch ( 500), SMC TigerSwitch XE, Bay Networks Ethernet Workgroup Switch.
: 3Com LANplex 2500, SMC ES/1, Bay Networks LattisSwitch System 28115.
/
: 3Com LANplex 6000, Cabletron MMAC Plus, LANNET LET-36, Cisco Catalist 5000, Bay Networks System 5000.
Catalyst 5000 Catalyst. , , , Ethernet 10 100 M/, FDDI .
Catalyst 5000 5 . Supervisor Engine, , 1 . . Fast Ethernet, Catalyst 5000. :
Catalyst 5000 96 Ethernet 50 Fast Ethernet.
Catalyst 5000, . 1000 Catalyst 5000, Fast Ethernet, CDDI/FDDI ATM. Fast Ethernet InterSwitch Link (ISL) . ISL - Cisco .
IEEE 802.1d Spanning Tree . LANE . FDDI 802.10.
Catalyst 3 OSI, ( ).
, . .
( 192 ) .
Catalyst 3000 . :
Catalyst 3000 Catalyst Matrix 280 / . Catalyst Matryx 3.84 /.
IOS - cut-throw store-and-forward.
Catalyst 3000 64 . MAC- - 10 .
Spanning Tree SNMP-.
SMC ( Cabletron) EliteSwitch ES/1 . ES/1 Ethernet/Token Ring/FDDI , IP IPX . , switching internetworking, . "-" T1/E1, , , .
. 7.1. ES/1
ES/1 , , , .
ES/1
ES/1 SMC ( 7.1) - , 800 /. (Packet Processing Engine) , RISC- AMD 29000. ( ), - , , . 4 .
, ES/1 , . . , .
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, . ES/1. , , . .
ES/1
ES/1 . Ethernet, Token Ring FDDI, T1/E1 T3/E3. , , . .
QEIOM (Quad Ethernet I/O Module)
Ethernet. Ethernet 14880 . ES/1 , . : AUI, BNC, RJ-45 ( ) ST ( ).
QTIOM (Token Ring I/O Module)
QTIOM 4 16 M/c Token Ring. Token Ring - IBM Source Routing, Transparent Bridging Source Routing Transparent - "" Token Ring , Ethernet FDDI. .
IFIOM (Intelligent Dual-Attached FDDI I/O Module)
IFIOM - FDDI ES/1 . FDDI- (Dual Attached Station). (Optical Bypass Switch), ES/1. : .
CEIOM24 (24-Port Concentrator Ethernet I/O Module)
24- Ethernet . , , . Ethernet / ES/1.
HIOM (High-Speed Serial Interface I/O Module)
HIOM HSSI 52 /. PPP.
SNMP-
ES/1 , SNMP-, : HP OpenView, IBM NetView/6000, Sun NetManager . SMC EliteView. , , Windows: EliteView for Windows.
ES/1
(Collapsed Backbone)
. , /. . .
Ethernet (Dedicated Ethernet)
( 10 /) ( ). FDDI Fast Ethernet.
ES/1 - (Synchronous Protocol Independent technology), , . ES/1 - Ethernet, Token Ring, FDDI, .
, , . EliteView , , ES/1 Ethernet , , . , ES/1.
, , , (IP IPX). , , , , , . , , , .
3Com , .
Link Switch. LANplex. CELLplex.
-ASIC, . 3om ASIC, .
LinkSwitch.
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: T - " " (cut-through); S&F - (store-and-forward).
LANplex 6012 , .
LANplex 6012 7.2.
FDDI/Ethernet. , - HSI, FDDI .
LANplex 6012:
. 7.2. LANplex 6012
CELLplex 7000 , 16 ATM (4 4 ). ATM- ATM- ATM- , ATM.
16(16, " " 2.56 / 4096 .
20.48 /, .
, CELLplex 7000 , .
:
ATM: (SVC) UNI 3.0 3.1, (PVC) , Interim Interswitch Signaling Protocol (IISP), (LAN emulation), (congestion management).
: SNMP, ILMI, MIB 2, ATM MIB, SONET MIB. Transcend.
CELLplex 7200 ATM- Ethernet--
, .
CELLplex 7200 Ethernet- , , . , ATM , ATM- , ATM- .
ATM- (8(8) Ethernet/ATM ZipChip. ZipChip Ethernet ATM, 780000 .
CELLplex 7000 CELLplex 7200 , :
CELLplex 7200 CELLplex 7000 .
, Bay Networks ATM, LattisCell ( ATM-), EtherCell ( Ethernet-ATM), ATM Connection Management System ATM Network Management Application.
ATM, , .
EtherCell " " , Ethernet. . 10328 EtherCell 12 10Base-T ATM. Ethernet 10 / .
ATM Connection Management System (CMS) SunSPARCStation, . CMS ATM- .
ATM Network Management Application, CMS, ATM .
ATM LattisCell 10114A ( 2 ) , , 16. 155 / . SONET/SDH 155 /, UNI 3.0
FastMatrix 5 /, . (broadcast) (multicast) .
(Quality of Service, QoS):
CMS, : SunSPARCStation 2 , Sun OS 4.1.3 Ethernet- Solaris 2.4 ATM-.
LattisCell (10114R, 10114A-SM, 10114R-SM, 10114R-SM, 10114-DS3, 10114-E3, 10115A, 10115R) , ( 16). , ( 25 ), DS-3 (45 /) E3 (34 /) T3/E3.
EtherCell (10328-F 10328-SM) Ethernet-Ethernet Ethernet-ATM. 12 10Base-T RJ-45 ATM 10 /. 10Base-T 10 / .
EtherCell 10328-F ATM 2 .
EtherCell 10328-SM ATM 20 .
LAN emulation, ATM . , UNI, MIB-II, EtherCell-MIB MIB Bay Networks.
ATM- EtherCell SONET/SDH LattisCell.
EtherCell - HSA (Host Signaling Agent), - Ethernet-.
EtherCell , ATM- , LattisCell.
LightStream 1010 ATM .
5 / 5- .
ATM Switch Processor (ASP), 5 /, , RISC- MIPS R4600 100 MHz. ASP IOS, Cisco. ASP " ", , ATM Forum.
4 CAM, 2- PAM. , 8 PAM :
LightStream 1010 PNNI Phase 1, (SVC) - .
ATM Forum , ABR.
" - " UNI 3.0 ( UNI 3.1).
LightStream 1010 ( 7.3).
. 7.3.
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