KX-TDA200/100 System (Version 2.0)

KX-TDA200/100 System(Version 2.0) Chapter 1.4 Basic Knowledge of Network • Panasonic Communications Co., Ltd. • Network Business Company • Edition 1.0 10 Sep., 2004

Chapter 1.4 Basic Knowledge of Network 1. Basic Knowledge of Network 1.4 WAN (1) What is WAN (2) WAN service (3) The equipment of network (4) Broadband

(1) What is WAN (1/3) WAN = Wide Area Network Connection to place in which it does not reach by LAN cable. Telephone net and ISDN net is one kind of the WAN service. Network CO CO Data Data Data Fukuoka Head office Tokyo Branch office Equipment of Telephone company (NTT/KDDI/etc. )

(1) What is WAN (2/3) • WAN service example(1/2) Telephone Network & ISDN Branch office Head office <Wired WAN service> The frequency of use is a little & the amount of data is a little. Telephone network, ISDN (Dial up connection) The frequency of use is a lot & the amount of data is a lot. High-speed digital leased line, Frame relay <Example> You can connect from the branch office and the outside to the head office.

(1) What is WAN (3/3) • WAN service example(2/2) Business trip (Outside office) Head office Base station <Wireless WAN service> Cellular phone network Public wireless LAN service which uses wireless LAN (Hot spot)

(2) WAN service (1/16) WAN service in Japan - ISDN • High-speed digital leased line (Redundant Trunk • circuit, ) - Economy leased line (Single Trunk circuit) - ATM leased service - Frame relay - Cell relay - New high speed Wide band service Wide area Ethernet service IP-VPN Internet VPN

Branch Head office Branch Branch (2) WAN service (2/16) Head office and Branch are connected directly • Leased line • - High-speed digital line • Economy • ATM Branch office Head office <Connected image of high-speed digital leased line etc.> - Service of guarantee type - Transmission rate and Quality is guaranteed. Brach office is fixed and not added. Transmission rate is stabilize.

(2) WAN service (3/16) WAN service in Japan - ISDN - High-speed digital leased line - Economy leased line - ATM leased service - Frame relay - Cell relay - New high speed Wide band service Wide area Ethernet service IP-VPN Internet VPN

Frame relay Branch Head office Branch Branch (2) WAN service (4/16) Head office and Branch are connected to Frame relay network Frame relay Branch office Head office <Connected image of Frame relay> - Service of the best effort type - Neither the performance nor the quality are guaranteed. Addition of the Brach office is easy. Transmission rate is not stabilize.

ATM (2) WAN service (6/16) Cell relay service Head office Branch Office Rooter Rooter Multimedia communication (voice and data, etc.) The base is the same as ATM leased service. The difference of ATM leased service is that two or more users share the ATM network in Cell relay service. - It has both “Best effort type” and “Guarantee type”. - The user can select QoS(line quality). - Suitable for the multimedia communication.

(2) WAN service (8/16) Wide area Ethernet Service Computer center Head office • - Best effort service • - Each base is connected by • LAN interface 10BASE-T, • 100Base-TX, etc. • - Data speed is High. • But, the charge is inexpensive. Layer 3 Switch Layer 3 Switch Wide area Ethernet Service Branch Office The proprietary IP network of the telecommunications carrier Layer 3 Switch Layer 3 Switch

(2) WAN service (10/16) IP-VPN Internet VPN To use the Proprietary IP Network of ISP To use the Internet Point of difference Item IP-VPN Internet VPN Proprietary IP Network of ISP Network composition Internet The cost goes up a little Reliability can be requested Priority of costs reduction is higher than reliability. Expectation for network Expensive Inexpensive Communication cost There is way of securing a constant band during the congestion. Influenced by the Internet access. Traffic Safety is relatively high Depending on the encryption function of VPN Security Relatively high, and the stop of the network by maintenance etc. is few. There is a service stop by maintenance etc.. Reliability of line

(2) WAN service (11/16) IP-VPN VPNequipment VPNequipment Broadband Router Broadband Router The Internet TCP/IP TCP/IP PC PC Internet VPN Broadband Router Broadband Router VPNequipment VPNequipment The Internet TCP/IP TCP/IP PC PC

(2) WAN service (12/16) Tunneling Protocol - MPLS - PPTP - L2TP - IPsec

(2) WAN service (13/16) MPLS (Layer 3 Tunneling) Broadband Router for MPLS Broadband Router for MPLS The Internet TCP/IP TCP/IP PC PC - MPLS (Multiprotocol Label switching) is the method of forwarding by putting label between headers of layer 2 and layer 3 of packet for user identification.

(2) WAN service (14/16) PPTP, L2TP (Layer 2 Tunneling) Broadband Router for PPTP Broadband Router for PPTP The Internet PPTP PPTP TCP/IP TCP/IP Apple Talk Apple Talk PC Mac PC Mac - A proprietary communication path (tunnel) is made by using Layer 2 Tunneling Protocol such as PPTP in the Internet. - The use of the network protocol other than IP are also possible because it connects it in Layer 2. Typical tunneling protocol of layer 2 - PPTP(Point to Point Tunneling Protocol) - L2TP (Layer 2 Tunneling Protocol)

(2) WAN service (15/16) IPSec (Layer 3 Tunneling） Broadband Router VPNequipment VPNequipment Broadband Router The Internet IPSec(ESP) Safely communication by the encryption TCP/IP TCP/IP IPSec(ESP) Server PC PC To make a proprietary communication path with high security by using the tunneling function and the encryption function of IPSec in the Internet. IPSec is a protocol which the security of IP is improved and only IP can be used. Authorization and encryption are done at the IP level(Layer 3) of the network layer. - Check on falsification => AH(Authorization Header) - Encryption => ESP(Encapsulating Security Payload) - IPSec is a standard specification of IPv6.

(2) WAN service (16/16) Point of difference Item MPLS PPTP L2TP IPsec Private IP Yes Yes Yes Yes User authentication No Yes Yes Yes No Yes No Yes Encryption Multi protocol Yes Yes Yes No Qos Yes No No No Management of VPN ISP base End user base ISP base ISP base End user base - VPN of LAN to LAN connection - VPN of remote access - VPN of remote access - VPN of LAN to LAN connection Using model of VPN - VPN of remote access - VPN of LAN to LAN connection

(3) The equipment of network (1/4) The equipment of network and OSI Layer Application Layer Gateway Presentation Layer Session Layer Transport Layer NetworkLayer Router(Layer 3 Switch) Data Link Layer Switching Hub(Bridge) Physical Layer Hub(Repeater)

B E A C D F A B C D E F (3) The equipment of network (2/4) HUB (Repeater) Mere relay device Repeater C A Repeater HUB The inside is the same as the bus type repeater. It is called the multi port repeater. The frame for C from A. The frame is reached to all The frame is reached to all

B E A C D F A B C D E F (3) The equipment of network (3/4) Switching HUB(Bridge) It has the table where the port and the MAC address are memorized. X Bridge C A Switching HUB It is connected directly by a virtual cable. The frame for C from A. The frame does not exceed the bridge. The frame is reached only C

A-1 A-1 C-1 C-1 Router A Router B Router C (3) The equipment of network (4/4) Router (Layer 3 Switch) Router A: Routing Table A-2 Network A A-1 According to routing table, IP packet from A-1 to C-1 is sent to router C. IP Packet from A-1 to C-1 B-2 C-2 Network B The destination is router C. So, router C pass the packet to Network C. Network C B-1 C-1

(4) Broadband (1/3) Broadband Broadband line - ADSL Major method The telephone line is used The influence of a distance and an electromagnetic noise is affected - CATV The Cable TV net is used. - FTTH The optical fiber is installed to the home A high-speed, stability communication can be used Broadband router Router corresponding to the broadband line PPoE(Point to Point Protocol over Ethernet) function, IP masquerade (NAPT), Fire wall function

(4) Broadband (2/3) Example of connecting broadband router Ethernet PPPoE Access server Set ADSL device ADSL modem Broadband router HUB The Internet Central Office ADSL/Analog Line Home Broadband Router Function PPPoE Client Function IP Masquerade Function Fire wall Function WAN side LAN side Broadband Router Function

(4) Broadband (3/3) Example of connecting Multifunction BB router Ethernet PPPoE Multifunction Broadband router with built-in ADSL modem Access server Set ADSL device The Internet Central Office ADSL/Analog Line Home Multifunction Broadband router (built-in ADSL modem) Function ADSL modem Function PPPoE Client Function Enhanced Interface IP Masquerade Function Fire wall Function ADSL line LAN side Switching HUB Function Broadband Router Function

Chapter 1.4Basic Knowledge of Network Thank you very much !

KX-TDA200/100 System (Version 2.0)