IP_over_ATM - IP over ATM IP over ATM > Se t of I P hos t s...

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IP over ATM
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License problem | Ericsson Internal | 2011-01-01 | Page 2 IP over ATM Set of I P hos t s wi t hi n a s ame I P domai n ( s ubnet ) communi cat e wi t h each ot her di rect l y over ATM net work. The I P hos t s out s i de t hei r s ubnet ( domai n) communi cat e wi t h ot her I P hos t s i n anot her s ubnet vi a an I P rout er.
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License problem | Ericsson Internal | 2011-01-01 | Page 3 ATM Network IP Host 1 IP Host 2 IP Host 3 IP Host 4 CASE 1:
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License problem | Ericsson Internal | 2011-01-01 | Page 4 ATM Network ATM NETWORK IP Router IP Host 1 IP Host 2 IP Host 3 IP Host 4 CASE 2:
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License problem | Ericsson Internal | 2011-01-01 | Page 5 OVERLAY MODEL I P over ATM PEER MODEL MULTI PROTOCOL LABEL SWI TCHI NG ( MPLS) I nt egrat ed ATM s wi t chi ng and I P Rout i ng Funct i on. No Addres s Res ol ut i on Prot ocol . IP over ATM
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License problem | Ericsson Internal | 2011-01-01 | Page 6 FRAMEWORK for IP over ATM 1. Packet Encaps ul at i on 2. Addres s Res ol ut i on 3. Mul t i cas t i ng 4. Large Net work ( Scal abi l i t y)
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License problem | Ericsson Internal | 2011-01-01 | Page 7 DETAILED FRAMEWORK 1. How many VC’ s do we need f or n prot ocol s ? i . e. , Def i ne a met hod t o t rans port mul t i pl e t ypes of net work or l i nk l ayer packet s acros s an ATM connec t i on and al s o f or MUXi ng mul t i pl e packet t ypes on t he s ame connect i on. Encaps ul at i ng I P packet s i n ATM AAL5 cel l s ? Packet Encaps ul at i on [ RFC 1483] 2. How t o f i nd ATM addres s es f rom I P addres s es ? Addres s Res ol ut i on [ RFC 1577]
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License problem | Ericsson Internal | 2011-01-01 | Page 8 3. How t o handl e mul t i cas t ? MARS [ RFC 2022] 4. How do we go t hrough n s ubnet s on a l arge ATM net work? NHRP DETAILED FRAMEWORK
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License problem | Ericsson Internal | 2011-01-01 | Page 9 PACKET ENCAPSULATION (RFC 1483) Goal :  Encapsulating IP packets in ATM AAL5 cells LLC/SNAP Encapsulation VC Multiplexing (Multiprotocol Encapsulation) (VC based Encapsulation) (“NULL”Encapsulation) A node that receives a network layer packet across an ATM connection to know what kind of packet has been received, and to what application or higher level entity to pass the packet to; hence the packet must be prefixed with a MUX field.
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License problem | Ericsson Internal | 2011-01-01 | Page 10 Given an ATM link between two routers with 3 different  protocols. How many VC’s shall we set up ? IP IPX AppleTalk Router Router ATM Switch Different Protocols Scenario : PACKET ENCAPSULATION (RFC 1483)
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License problem | Ericsson Internal | 2011-01-01 | Page 11 ANSWER 1 : LLC/SNAP ENCAPSULATION Share a VC using LOGICAL LINK CONTROL (LLC) Subnetwork Access Protocol (SNAP). IP
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This note was uploaded on 02/23/2012 for the course MATH 101 taught by Professor Jhons during the Spring '12 term at Richard J. Daley College - CCC.

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IP_over_ATM - IP over ATM IP over ATM > Se t of I P hos t s...

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