Osi 7 Layer

In: Computers and Technology

Submitted By supakron
Words 971
Pages 4
1 OSI 7 Layer
( Mr.Watt ) ( Mr.Mast ) ( Mr.Jodoi )
Network Certificate Layers Network 1. Why Network ? network. ( Why Network ? ) CCNA , CCNP , LPI , Security + , CWNA OSI 7 Layers CCIE OSI 7

Network ? share data ,



flash drive

network msn file Share file Server

Internet software



netwok network network OSI 7 Layers OSI 7 Layers Internet



OSI OSI Open System Interconnection OSI Model 7


OSI model 1.Physical Layer 2.Data Link Layer 3.Network Layer 4.Transport Layer 5.Session Layer 6.Presentation Layer 7.Application Layer

OSI 7 Layers











Data Link

Data Link



Layer 1.Physical Layer
Physical Layer Connector layer bits protocol CAT5, CAT6, RJ-45 cable Lan







1. Router -

Lan Lan Lan ( Crossover ) PC Lan PC , Router ( Straight ) PC Hub Switch






2.Data Link Layer
Data Link Layer MAC Address ATM , MPLS Data Link Layer CCNA encapsulation encapsulation encapsulation frame decapsulation encapsulation layer Frame address protocol

Ethernet , Token Ring , IEEE 802.3/202.2 , Frame Relay, FDDI,HDLC,

2 LAN VLAN Switch Trunk port encapsulation encapsulation VLAN config Trunk port cisco Switch encapsulation Port


WAN Mac Address Table , Switch Switch 2 IEEE 802.1Q ISL Switch


WAN Router Cisco ) encapsulation

encapsulation Media encapsulation ppp ( Leased line hdlc ( encapsulation

Media encapsulation Router encapsulation default

Media Provider set Router Cisco )

Leased line



encapsulation router ietf 2 cisco

set )

Router Cisco encapsulation Router


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