Host based ipv6 multicast addresses allocation draft park host based mcast 01 txt
This presentation is the property of its rightful owner.
Sponsored Links
1 / 7

Host-based IPv6 Multicast Addresses Allocation draft-park-host-based-mcast-01.txt PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on
  • Presentation posted in: General

Host-based IPv6 Multicast Addresses Allocation draft-park-host-based-mcast-01.txt. Jung-Soo Park, Myung-Ki Shin, Yong-Jin Kim ETRI 52nd IETF – Salt Lake City. What is this about. An extension to the multicast addressing architecture of IPv6

Download Presentation

Host-based IPv6 Multicast Addresses Allocation draft-park-host-based-mcast-01.txt

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Host based ipv6 multicast addresses allocation draft park host based mcast 01 txt

Host-based IPv6 Multicast Addresses Allocationdraft-park-host-based-mcast-01.txt

Jung-Soo Park, Myung-Ki Shin, Yong-Jin Kim

ETRI

52nd IETF – Salt Lake City


What is this about

What is this about

  • An extension to the multicast addressing architecture of IPv6

  • Each host (interface) uses Interface ID to allocate it’s own multicast addresses without any server

  • Especially useful in Zeroconf environment


Background

4-bit

8-bit

4-bit

112-bit

FF

flgs

scop

group ID

Background

  • Multicast addressing architecture of IPv6

    • Does not contain any built-in support for dynamic address allocation


Unicast prefix based m a by brian haberman dave thaler

8 bits

flags

4 bits

8 bits

8 bits

64 bits

32 bits

11111111

00PT

reserved

plen

group ID

scope

network prefix

Unicast prefix-based M. A.(by Brian Haberman & Dave Thaler)

  • Multicast address format

    • P flag is used to indicate a multicast address that is assigned based on the network prefix

    • plen indicates the actual number of bits in the network prefix field that identify the subnet


Host based multicast address i

16-bit

32-bit

4-bit

8-bit

4-bit

64-bit

11111111

flgs

scop

reserved

Interface ID

group ID

Host-based multicast address (I)

  • Link-local multicast address format

    • flgs field should use the same flags defined in section 3 of unicast prefix-based method

    • interface ID field is used to distinguish each host and is derived from unicast address


Host based multicast address ii

16-bit

32-bit

4-bit

8-bit

4-bit

64-bit

11111111

flgs

scop

SLA

Interface ID

group ID

Host-based multicast address (II)

  • Site-local multicast address format

    • SLA value is obtained from the network prefix contained in the RA message to distinguish a site


Discussion proposal

Discussion & Proposal

  • Distinction between host-based and unicast prefix-based M. A. is required

    • Because the flgs field use the same flags defined in section 3 of unicast prefix-based draft

    • The value of scope field can be used

      • For scope <= 5, host-based MA

      • For scope > 5, unicast prefix-based MA

  • Modifications in unicast prefix-based draft ?

  • IPv6 WG draft


  • Login