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March 14, 2006

Big news at the IEEE mesh standards meetup last week in Denver, reports TelecomWeb and WiFiNetNews: a standard for mesh networking may be coalescing.

The new standard, 802.11s, will create a protocol for auto-configuring paths between access points over self-configuring multi-hop networks. With a standard, interoperatiblity between vendors may be possible.

Currently, all "city clouds" that use mesh networking to interconnect nodes use proprietary technology. Placing a multi-million dollar bet on one supplier is asking for trouble. A mesh networking standard would likely lower both risk and cost.

Status of Project IEEE 802.11s

ESS Mesh Networking


March 2006, Denver, Colorado

ESS Mesh Networking Task Group Report
The ESS Mesh Netwokring Task Group (TGs) met on Tuesday, Wednesday, and Thursday afternoon 7-9 March 2006 at the Hyatt Regency Denver Convetion Center hotel.
  • The updated agenda for the meeting is in submission 11-06/256r10.
  • At the January meeting, TGs suspended its proposal selection process to expedite the two remaining proposals, SEE Mesh and Wi-Mesh Alliance, working towards a merger. This merger was successful and a single joint proposal was presented and confirmed unanimously at the March meeting as the starting point for the 802.11s standard, although much work remains.
  • TGs has scheduled three teleconferences on the following dates at 11am US Eastern Time to discuss mesh security and its May agenda.
    • 5 April 2006
    • 26 Paril 2006
    • 10 May 2006
  • Activities at the May 2006 meeting are expected to be to resolve informal internal technical review comments on its Draft, hear other technical presentations and possible amendments.

"Mesh-networking features will help keep IEEE 802.11, already dominant in the WLAN arena with over 100 million chip sets shipping annually, at the cutting edge of technology for the maximum benefit of its users,” says Mesh Networking Task Group Chair Donald E. Eastlake III. He adds that final approval of the new addition to the 802.11 family of standards is targeted for 2008.

SEEMesh (short for Simple, Efficient and Extensible Mesh) and the Wi-Mesh Alliance are apparently merging. SEEMesh is backed by Intel, Nokia, Motorola, NTT DoCoMo, and Texas Instruments. The Wi-Mesh Alliance is backed by Nortel, Philips, Thompson and Mitre. Details of the proposed standard are not yet available.

But the biggest names in the metropolitan-area mesh network space, BelAir Networks, Tropos Networks, and Strix Systems, are not buying in, reports Enterprise Networking Planet.

Mesh Vendors
Source: Network World
Vendor Product Radios for client access Radios for backhaul Ethernet ports
BelAir Networks BelAir 200 1 802.11b/g Up to 3 proprietary 5GHz Eight
Cisco Aironet 1500 1 802.11b/g 1 802.11a Zero
Firetide HotPort 3203 1 802.11a/b/g Same as for client access Two
Nortel Wireless AP 7220 1 802.11b 1 802.11a One
Strix Systems OWS 3600 Up to 3 802.11b/g Up to 3 802.11a One
Tropos Networks 5210 MetroMesh Router 1 802.11b/g Same as for client access One

Strix and BelAir both have said that 802.11s may not cover outdoor mesh networking effectively.

Tropos, the mesh market leader, uses a single radio with their patented Predictive Wireless Routing Protocol (PWRP). Tropos may not feel compelled to jump in bed with the first mesh standard that comes down the pike.

In other mesh news, Trango Broadband Wireless is offering a wireless mesh system that can be used as a backbone ring (right).

The new HD Mesh system creates a self-healing backbone ring network capable of speeds of "up to 45 Mbps". It is available for operation in the licensed 4.9 GHz public safety frequency band, as well as the 5 GHz unlicensed bands.

 

A total of six additional Ethernet devices, such as cameras and access points, can be added to Trango Broadband's HD Mesh micro-cell base station. It is designed to support WiMAX-ready radios and 802.11g Wi-Fi hotspots.

Related DailyWireless articles include; Mesh Standards?, Mesh Standards Proposed, Community Mesh Developments and Mesh Roundup.


Originally posted by sam from Daily Wireless, remediated by yatta on Mar 14, 2006 at 09:57 AM