Multicusting

Сентябрь 2, 2022

Содержание

3. BASE Базируется на концепции групп Группа не имеет физических и географических ограничений Группа заинтересована в получении
4. Addressing The Internet Assigned Numbers Authority (IANA) controls the assignment of IP multicast addresses. It has
5. Reserved Link Local Addresses The IANA has reserved addresses in the 224.0.0.0 through 224.0.0.255 to be
6. Address types Globally Scoped Address The range of addresses from 224.0.1.0 through 238.255.255.255 are called globally
7. Layer 2 Multicast Addresses Ethernet MAC addresses to be 0100.5e00.0000 through 0100.5e7f.ffff The mapping places the
9. IGMP. IGMP Version 2 Membership query Version 1 membership report Version 2 membership report Leave group
10. L3 Multicasting PIM SM (sparse mode) PIM DM (dense mode)
11. ip multicast-routing dyn3(config-if)# ip pim sparse-mode[dense-mode] dyn4(config)# ip pim rp-address 4.4.4.4 1 override dyn4(config)# access-list 1
12. Base troubleshooting
13. QoS
17. Скачать презентацию

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BASE
Базируется на концепции групп
Группа не имеет физических и географических ограничений
Группа заинтересована

в получении определенного потока данных
Хост должен подключится к группе с помощью специального протокола (IGMP)
Хост должен быть членом группы чтобы получать поток.

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Addressing
The Internet Assigned Numbers Authority (IANA) controls the assignment of IP

multicast addresses. It has assigned the old Class D address space to be used for IP multicast. This means that all IP multicast group addresses will fall in the range of 224.0.0.0 to 239.255.255.255.
Note: This address range is only for the group address or destination address of IP multicast traffic. The source address for multicast datagrams is always the unicast source address.

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Reserved Link Local Addresses
The IANA has reserved addresses in the 224.0.0.0

through 224.0.0.255 to be used by network protocols on a local network segment.

224.0.0.1 All systems on this subnet
224.0.0.2 All routers on this subnet
224.0.0.5 OSPF routers
224.0.0.6 OSPF designated routers
224.0.0.12 DHCP server/relay agent

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Address types
Globally Scoped Address
The range of addresses from 224.0.1.0 through 238.255.255.255

are called globally scoped addresses. They can be used to multicast data between organizations and across the Internet.
Limited Scope Addresses
The range of addresses from 239.0.0.0 through 239.255.255.255 contains limited scope addresses or administratively scoped addresses.

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Layer 2 Multicast Addresses
Ethernet MAC addresses to be 0100.5e00.0000 through 0100.5e7f.ffff
The

mapping places the lower 23 bits of the IP multicast group address into these available 23 bits in the Ethernet address

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IGMP. IGMP Version 2
Membership query
Version 1 membership report
Version 2 membership report
Leave

group

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L3 Multicasting
PIM SM (sparse mode)
PIM DM (dense mode)

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ip multicast-routing
dyn3(config-if)# ip pim sparse-mode[dense-mode]
dyn4(config)# ip pim rp-address 4.4.4.4 1

override
dyn4(config)# access-list 1 permit 224.1.1.1

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Base troubleshooting

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QoS

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Multicusting

Содержание

BASEБазируется на концепции группГруппа не имеет физических и географических ограниченийГруппа заинтересована

AddressingThe Internet Assigned Numbers Authority (IANA) controls the assignment of IP

Reserved Link Local AddressesThe IANA has reserved addresses in the 224.0.0.0

Address typesGlobally Scoped AddressThe range of addresses from 224.0.1.0 through 238.255.255.255

Layer 2 Multicast AddressesEthernet MAC addresses to be 0100.5e00.0000 through 0100.5e7f.ffffThe

IGMP. IGMP Version 2Membership queryVersion 1 membership reportVersion 2 membership reportLeave

L3 MulticastingPIM SM (sparse mode)PIM DM (dense mode)

ip multicast-routingdyn3(config-if)# ip pim sparse-mode[dense-mode]dyn4(config)# ip pim rp-address 4.4.4.4 1