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- Timestamp:
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Dec 8, 2010, 9:56:30 PM (13 years ago)
- Author:
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hmussman
- Comment:
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v35
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v36
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35 | 35 | + controlled by asnctrl |
36 | 36 | |
37 | | These must currently be loaded with various libraries, including the SF Tables library; some could be eliminated. |
38 | | |
39 | | There ia an ASN-GW controller configuration file; see (reference below). |
| 37 | These must currently be loaded with various libraries, including the SF Tables library; some libraries could be eliminated. |
| 38 | |
| 39 | There is an ASN-GW controller configuration file; see (reference below). |
40 | 40 | |
41 | 41 | == 4.3 Data Path Module == |
42 | 42 | |
43 | | For Cases 1 and 2, the Data Path Module carries data between the NEC BTS and tbe GENI Access Network. |
44 | | |
45 | | For Case 3, the Data Path Module carries data between the NEC BTS and tbe KVM VMs. |
| 43 | The data path is built to support pure layer 2 (L2) traffic to and from the Mobile Stations (MSs), even though WiMAX is inherently an IP (L3) service. |
| 44 | |
| 45 | For Cases 1 and 2, the Data Path Module carries UL and DL L2 flows between a GRE tunnel on the NEC BTS side, and a VLAN tag on the GENI Access Network side. |
| 46 | For Case 3, the Data Path Module carries UL and DL L2 flows between a GRE tunnel on the NEC BTS side, and a VLAN tag on the KVM VM side. |
46 | 47 | |
47 | 48 | Currently, the only supported Data Path Module is the Click Modular Router |
48 | | |
49 | 49 | Later, it is expected that an Open FLow Switch will be supported. |
50 | 50 | |
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53 | 53 | The currently supported Data Path Module is the Click Modular Router, v1.6; later, this is planned to be replaced with v1.8. |
54 | 54 | |
55 | | The functionality of the CLICK Modular Router is set by its configuration file; see (reference below). This configuration file is initialzed and then updated by the Control Module. With the current v1.6 implementation, the CLICK moduler router must be restarted after the configuration file is updated. |
| 55 | The functionality of the CLICK Modular Router is shown in Fig 4. |
| 56 | |
| 57 | It is based on a dynamically configurable L2 learning switch. |
| 58 | |
| 59 | Both UL and DL data paths are automatically created and installed when MSs associate. |
| 60 | |
| 61 | Data paths are setup by the CLICK configuration file; see (reference below). This configuration file is initialized and then updated by the Control Module. With the current v1.6 implementation, the CLICK modular router must be restarted after the configuration file is updated. |
| 62 | |
| 63 | |
56 | 64 | |
57 | 65 | === 4.3.2 Open Flow Switch === |