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Discovery Scenarios

Discovery Scenarios

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Discovery Scenarios

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  1. Discovery Scenarios

  2. Considerations on Discovery • MIHF retains MIHFID  MOS IP address • MoS discovery associated to MoS capability discovery is an optional feature • DHCP for MoS discovery • We cannot assume that MOS and IP configuration tools are always available in the same domain (i.e. DHCP in the visited and MOS in the home)

  3. MOS in the HOME (e.g. GPRS networks) (I) Assumption The MIHF does NOT know the IP address of the MOSh Assumption The MIHF has the IP address of the MOSh MIHF MIHF MOSh MSTP MOSh MSTP Request (unicast) Response (unicast) Request (broadcast) Response (unicast) MSTP MSTP MN MN MIHF MIHF Unicast mode Broadcast mode

  4. MOS in the HOME (e.g. GPRS networks) II Could we exploit a relay to address a broadcast request? Router Advertisements containing MIHF discovery options ? Relay (ePDG, AR) MIHF MOSh MSTP Optional MIHF MSTP Request (broadcast) Response (unicast) MSTP MN MIHF Broadcast mode

  5. MOS in the Visited (I) Assumption The MIHF does NOT know the IP address of the MOSh ??? Assumption The MIHF has the IP address of the MOSv ??? MIHF MIHF MOSv MSTP MOSv MSTP Request (unicast) Response (unicast) Request (broadcast) Response (unicast) MSTP MSTP MN MN MIHF MIHF Unicast mode Broadcast mode

  6. MOS in the Visited (II) Use of relays? AR MIHF Optional MIHF MSTP MOSv MSTP Request (broadcast) Response (unicast) MSTP MN MIHF Broadcast mode

  7. Relation between MOSh and MOSv during discovery Direct roaming agreement is assumed AR MIHF Optional MIHF MOSh MSTP MOSv MSTP Request (broadcast) Response (unicast) MSTP MN MIHF Broadcast mode