doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 1 Current status of project open80211s Date: Authors: NameAffiliationsAddressPhone Javier Cardonacozybit Inc.165 Jessie St Anna NealSan CA 94105

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 2 Outline Review of Project Goals Original Project Scope Implemented Features Implementation Details Configuration Testing Current status To Do Q&A

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 3 Review of Goals 1. To facilitate the adoption of the upcoming standard of s by providing its first open implementation. 2. To replace the numerous existing, non-interoperable, incomplete mesh implementations with one based on the standard. 3. To raise visibility of s technology and to promote a community of active developers interested in s.

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 4 Original Scope of Project open80211s will run on Linux. based on the generic networking stack (mac80211)‏ aim to merge upstream (Linus tree)‏ Software Hardware “softmac” wireless network cards. Open Linux driver available, no binary modules.

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 5 Implemented Features FEATURE Frame Format Mesh Discovery Peer Link Management Mesh Path Selection HWMP Airtime Link Metric Calculations Mesh Beaconing SECTION 7 11B.1 11B.3 11B.61 11B.9 11B.8 11B.12

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 6 Implementation Details | IP | | bridging | ****************** | AP | STA * Mesh * * * | mac80211 * o11s * ****************** | wireless device driver |

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 7 Implementation Details o11s functionality integrated into the subsystem used for SoftMAC Linux wireless drivers. Additions to the stack include: –A new mesh interface type. –Management frame handling. –HWMP –Peer Link Management. –Mesh frame format. mac80211

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 8 Implementation Details nl80211 o11s integrated into the new netlink based configuration interface. nl80211 is used by iw to interface to the mesh. Additions to iw include: –Adding the mesh interface –Forcing custom peer links –Printing mesh paths and peer links. –Setting up custom mesh paths. –Blacklisting.

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 9 Configuration # iw phy phy0 interface add mesh0 type mp mesh_id mymesh # iw dev mesh0 station dump 00:11:a3:03:fe:32 msh ESTAB 00:c0:49:fc:db:ca msh ESTAB 00:11:a3:03:ed:3a msh ESTAB 00:c0:49:f0:d0:73 msh OPN_SNT

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 10 Configuration # iw dev mesh0 path dump 00:c0:49:fc:db:ca 00:c0:49:fc:db:ca msh x15 00:11:a3:03:fe:32 00:11:a3:03:fe:32 msh x11

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 11 Configuration # cd debugfs && grep. mesh_config auto_open_plinks:1 dot11MeshConfirmTimeout:100 dot11MeshHoldingTimeout:100 dot11MeshHWMPactivePathTimeout:5000 dot11MeshHWMPmaxPREQretries:4 dot11MeshHWMPnetDiameterTraversalTime:50 dot11MeshHWMPpreqMinInterval:10 dot11MeshMaxPeerLinks:32 dot11MeshMaxRetries:3 dot11MeshRetryTimeout:100 dot11MeshTTL:5

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 12 Testing 12 small form factor cluster with multiple o11s wireless cards. Automated test suite for all the implemented features. Developer Testbed

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 13 Performance Discovery time vs. Number of Hops manually configure filter settings to enforce multi-hop topologies. measure the discovery duration from the time a path setup is requested until the time that the path is actually established Throughput vs. Number of Hops default parameters are used for measurements. each experiment is run six times for 10 sec per measurement. uncontrolled wireless environment. Setup

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 14 Performance routes are resolved in linear time. the variance increases with the length of the path. Discovery time vs. Number of Hops

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 15 Performance sub-optimal paths forced by blacklisting peers. Throughput vs. Number of Hops

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 16 Current Status Kernel mainline integration achieved Drivers with mesh capabilities keeps increasing (currently 5 supported device drivers)‏ On stand-by, but actively receiving contributions from the community: –mac80211_hwsim –2 drivers –Support for proxied entities (6-address frame format)

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 17 To Do Sections pending implementation: Security8, 11B.5 Congestion control11A.11 HT support Power-Aware Metrics Implement draft-2.02 changes. Large scale testing ( >100 nodes)‏

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 18 Questions? ?

doc.: IEEE /1313r0 Submission November 2008 Javier CardonaSlide 19 Thank you!