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MN Status Option for Proxy Mobile IPv6

MN Status Option for Proxy Mobile IPv6. YangweiTu (ZTE) Nov. 2011. Background. PMIPv6 deployments support communication using multiple access technologies simultaneously.

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MN Status Option for Proxy Mobile IPv6

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  1. MN Status Option for Proxy Mobile IPv6 YangweiTu(ZTE) Nov. 2011

  2. Background • PMIPv6 deployments support communication using multiple access technologies simultaneously. • The PMIPv6 flow mobility draft specifies extensions for the traffic/IP flow to be moved from one access type to another. • The PMIPv6 flow mobility draft assumes a Mobile Node connectivity status of (1) connect or (2) disconnect. However some access technologies allow for a MN status of sleep or idle mode.

  3. Identified Problem • For flow mobility the LMA essentially decides the routing rules for the specific IP flow (s), however, • the connectivity status of a node in sleep (idle) mode for a specific is not carried to the LMA. • so that it is impossible to guarantee the flow mobility can be done successfully.

  4. Problem Illustration LMA WiFi 3GPP MAG 1 MAG 2 IP Flow X IP Flow Y MN

  5. Problem Illustration LMA WiFi 3GPP MAG 1 MAG 2 IP Flow X Sometime IP Flow Y is deleted, and the 3GPP access of the MN is changed to sleep or Idle mode MN

  6. Problem Illustration the IP Flow X is decided to move from WiFi to 3GPP,and LMA determines the 3GPP access is in connect mode(the PMIP tunnel exist) LMA WiFi 3GPP MAG 1 MAG 2 IP Flow X MN

  7. Problem Illustration LMA IP Flow X WiFi 3GPP MAG 2 can not establish the link to the MN, and the flow mobility of IP flow X is fail to complete. MAG 1 MAG 2 MN maybe move out of the coverage of the MAG 2 in Idle Mode, then the MAG2 will fail to wake up the MN MN

  8. Initial idea for addressing issue • A new option is defined for using it in messages (PBU/PBA) exchanged between MAGand LMA. • MN-status Length • 8-bit unsigned integer indicating the length in octets of the option,excluding the type and length fields. • Mobile Node status • The status of the mobile node attached from a specific accessnetwork, such as WiFi,WiMAX and 3GPP. Currently the value of the MNstatus can be as follow:1,connect mode,2,disconnect mode,3,idle/Power saving mode,4,reserved.

  9. Next steps • If the working group agrees that this is a problem and that the NETEXT resolve this issue.

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