New Access version 2.0.2 released for A5 and C5!

We’re pleased to announce the availability of firmware 2.0.2 for the Mimosa A5 access devices and C5 client devices. After their successful introduction delivering blazing fast speeds for broadband access, this second major access release adds new advanced networking capabilities and subscriber management features allowing the solution to more easily integrate with ISP networks.

First off, many of these new features are the result of your feedback – thank you for keeping up the communication with us here at Mimosa! Here’s the highights of what we’ve included in 2.0.2:

Layer 2 networking enhancements
New L2 features make easier to operate advanced bridged networks environments while protecting the ISP network and other wireless clients:

  • VLAN Passthrough enables the link between the A5 and C5 to send all tagged VLAN traffic without any modification

  • Rogue DHCP Server Protection prevents propagation of DHCP protocols from non-authorized DHCP servers (such as a subscriber improperly connecting their home router ‘backwards’)

  • Broadcast Suppression mitigates the impact of broadcast traffic storms by rate limiting traffic types known to cause network flooding (e.g. broadcast, unknown unicast, unknown multicast, etc.)

Wireless Link Distance Optimization
Enables longer distance connections between the A5 and C5, ensuring there are no software restrictions on link distances. The A5 also now supports auto-ranging to determining the link distance to each C5 client automatically. Note that extended link distance is currently not supported for 3rd party clients in 2.0.2, and will be supported in the next software release.

Subscriber and Application Traffic Management
New A5 subscriber management features ensure subscriber bandwidth fairness and manage network abuse from specific networking protocols. This unique and powerful capability combines new network intelligence = with traditional rate limiting capabilities in the A5. This jointly optimizes network and airtime fairness to ensure a great and fair experience across all the clients connected to the A5:

  • Application Prioritization allows custom control over traffic prioritization of important applications and protocols (HTTP/HTTPS, VPN, Ping, Torrents and some video streaming services) to improve subscriber experience while streaming
  • Access Control Lists allow granular “5-tuple” prioritization controls to help mitigate the impact of specified Internet applications or subscriber abuse on the wireless network

And finally, the all new G2 Wi-Fi gateway Network Health Monitoring measures and logs end-to-end network availability and latency between the subscriber premise G2 and network name service. Health monitoring information will be made available in the Mimosa Cloud for easy analysis.

We thank you for your input and hope you enjoy these substantial new features. We look forward to hearing from you as you continue to build out fiber-fast broadband access networks!

For more information:

What about TDD, GPS sync, fixed frame mode ?

Great to hear that Mimosa is working hard to upgrade firmware. Does the link distance show both the distance as well as GPS location of a client from the A5?

Development and testing is going well so far with GPS-Sync for PTMP applications, which includes all of the terms mentioned by Dogus above. We are targeting a release in the Q4 time range pending positive performance and stability test results at our alpha and extended beta sites.

Link distance is based on client ranging (propagation delay). Neither the B5-Lite nor the C5 have GPS, so exact coordinates are not available from those products. Depending on AP orientation, we can estimate client placement relative to the AP using the ranging data.

Here’s a silly suggestion. Ask the Installer for the GPS Coordinates. I have a perfectly decent GPS in my phone. If I record the coordinates and enter them into the CPE radio, you don’t have to guess any more. Just include a disclaimer on that page that notifies us that entering bad coordinates can severely impact performance.

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The coordinates can be entered on the Wireless > Location page on a B5-Lite AP:

The lack of coordinates will not severely impact throughput in a B5-Lite link. Propagation delay is calculated based on client ranging now between AP and Station.

If B5-Lite is used in PTMP, the B5-Lite obtains GPS timing from the AP.

Umm, I’m well aware of the coordinate entry on a B5-Lite, as that is the one Mimosa Product we’ve acquired so far. But v2.0.2 is for the A5 and C5, right? Now it doesn’t make sense to have the C5’s coordinates entered in the A5, so I’m assuming that’s not how you are setting them up.

Now, as to calculated propagation delays, I’ve had mixed results from this in the past. It’s been my experience that some times the calculated distance can fall short of the actual distance. If this miracle of faster than light transmission isn’t reliable, then you can get extraneous retransmissions due to an unreasonable ACK timeout, wasting airtime. On the other hand, if you are making heavy use of Multi-Path, then your signal path may be noticeably longer than the actual, as the crow flies, distance. So perhaps your way is better, if you can keep the algorithm from getting stupid. Perhaps a minimum ACK timing based on the GPS coordinates would help? Might be educational to have a future beta firmware report back to the cloud the number of times the calculated distance falls short of the GPS distance.

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