What’s New In Cisco Wireless Software 8.0.110 – 8.1.102

Cisco Wireless Software 8.1.102 has been released and it’s time to bring my notes up to date.

These are abridged notes covering high points. Read the release notes for yourself and test your chosen build before deploying it in production.

8.0.110 (Release Notes)

Note: If you need to run 8.0.110 (or 7.6), please read this post: TAC Recommended AireOS 7.6 and 8.0 – 2Q CY15

  • If you have 3700P APs, don’t install this release. Contact TAC. This warning doesn’t apply to 3700i or 3700e.
  • Support added for the 1570 AP
    • Handful of features added to support 1570 specific features.
  • Support for priming universal APs (APs not locked to a regulatory domain) and auto setting the regulatory domain based on location. See Cisco Aironet Universal AP Priming and Cisco AirProvision User Guide for more info.
  • Enhancements to Express Setup for the 2500 WLC.
  • SSLv3 is now disabled by default.
  • Lots of resolved caveats. Lots of open ones, too…

8.0.115 (Release Notes)

  • Nothing new. Very short list of bug fixes, mainly for the 3700P.
  • The 8.0.110 special build (mentioned in the TAC Recommended link above) may be a better bet right now.

8.1.102 (Release Notes)

  • Virtual WLC now supported on KVM.
  • These APs retain feature parity with 8.0 and do not gain new features: 1050, 1140, 1260. Nice to see support not completely vanish, yet.
  • Support for WLC 5520 and 8540 added.
  • Dynamic Bandwidth Selection (DBS)
    • Chooses 20/40/80MHz channel width automatically. Tries to balance client needs with RF needs. I’ll be interested to hear what others think. I’m sticking with 40MHz.
  • Flexible DFS
    • Automatically adjust channel and width to avoid radar for more efficient channel usage. I presume this leverages DBS.
  • Enhanced Interference Mitigation
    • ED-RRM now also takes Wi-Fi interferers into account.
  • Optimized Roaming Extensions (802.11v BSS Transition Management)
    • Infrastructure helps clients make better roaming choices. Not sure what clients actually support this.
  • Defaults now implement best practices.
  • AVC added to FlexConnect APs
    • I’ve been told this isn’t supported on the 2504, but the release notes don’t say. YMMV.
  • SNMP MIB enhanced to allow monitoring of an HA WLC.
  • Support for Lync SDN API.
    • In short, Lync tells the WLC when a call is happening so the WLC can take QoS actions.
  • AVC updates
    • Per app, per client rate limiting
    • AVC based QoS markings
  • Inter controller roaming across IOS-XE and AireOS based controllers (8500 series, 5520, 5760)
  • AAA can override FlexConnect VLAN.
  • Stateful client switchover for mesh APs (RAPs and MAPs)
  • There is a decent list of caveats. Please go read them for yourself if you find this release of interest.

Notes at the end remind that 7.6 is still the recommended release for 802.11ac deployments, with 7.4 for 802.11n deployments.

Also, Field Upgradeable Software (FUS) 1.9 is recommended. You can do a “show sysinfo” to see what you have installed. Look for the Firmware Version line and the Field Recovery Image Version. If you have FUS 1.9, it will look like this:

Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1

FIN

In BYOD, Client Devices Manage You

I wrote another post over at the Aruba Airheads Community. Here’s a taste…

With the recent release of OS X and iOS updates, I have been reminded (again) of how subject we are to the manufacturers of our client devices. In this particular example, I’m contemplating that since the release of iOS 8 and OS X Yosemite, reports of Wi-Fi problems in my organization have skyrocketed. Not that I’m trying to pick on Apple, they just happen to be the current source of trouble…

If you’d like to read the rest of it, you can check it out at the Airheads Technology Blog.

My Cisco Live Schedule

First of all, if you are a Cisco Live NetVet, the scheduler is open at https://www.ciscolive2015.com/connect/mySchedule.ww. If you are not a NetVet, it will open for you on March 31st.

I’ve spent a bit of time tweaking my schedule and here’s my current plan:

My schedule for Cisco Live

Scott’s schedule for Cisco Live

I suspect I may want to change things up a little after the technical seminar on Sunday. I might also change things after the slides are released and I can see what the plan is for those sessions. Focus this year is obviously on wireless. :) I’m looking to learn more about are CMX and all the changes that have come with MSE 10. I’m not using CMX right now, but the need for it and the value are starting to rise. My current architecture is centralized controllers and FlexConnect APs. This has some limitations, so I’ll be looking to learn more about the converged access solution to see if I can leverage the 3650s we’ve been deploying to get the APs back to local mode, but still have the branch traffic stay in the branch. I might drop a session to spend some quality time in the WoS without a huge crowd, but I’ll have to see what the session slides say first. I haven’t looked to see what recent recordings are available in the Cisco Live On-demand Library, either. Might be able to free up a session or two that way, as well.

I dropped the industry keynote and replaced it with the CCIE Wireless written exam. I’ve taken the R&S exam a couple times before and didn’t quite make the cut, but I’ve been doing a lot more wireless work than routing work, so I’m optimistic that I can get a better score here. We’ll see how I do in a few months. :)

FIN

Sticky Clients, Wide Channels, and SNR

I wrote a blog post with my thoughts about the impact of wide channels and SNR when dealing with sticky clients. I discovered some interesting things about how things really work during the course of writing it. Check it out over at the Aruba Airheads Community.

Can We Improve Wi-Fi Regulations?

Some complain that the FCC made a mistake in their Marriott ruling and the resulting Enforcement advisory against Wi-Fi blocking. Those who disagree say an organization should be able to control the RF environment on their own property. While that sounds reasonable at first, can we even develop the rules to allow that?

You can read the rest of this post over at the Aruba Airheads Technology Blog.

FIN

Wi-Fi: Access Layer of the Future?

Is Wi-Fi the access layer of the future? Of course it is! As network professionals we all know that outside of the traditional enterprise, it’s the access layer of the now. But when will the traditional enterprise take advantage of it?

Read the rest of this post over at the Aruba Airheads Community: Wi-Fi: Access Layer of the Future?

In Need of Focus

Too-Busy.jpg

Image courtesy Ryan Ritchie via flickr

I like spending time with my family and being involved at church. I like certification exams. I like studying and learning new things. I like HAM radio, blogging, and photography. I like keeping up with the Marvel movies and TV shows. That’s just a few of the things I like. Specific technologies I like include Wi-Fi, Routing & Switching (R&S), Data Center, Virtualization and other topics directly and tangentially connected to networking topics. You know what? I like too many things.

Reality Check

I’ve recently come to realize that I’m trying to do too much and I have finite time. I’m trying to keep up with way too many technologies. It’s just not possible to keep current on everything. I have decided that I need to cut a few things out, or at least minimize them. Obviously church and family can’t be cut, so I have to start cutting out other things. Like watching TV. Deciding that Data Center stuff really isn’t that important to me and that it’s okay that I only know what I need to do my job. Realizing that R&S really isn’t my focus, even though I like it. That I don’t need to be a VMware expert. I like all these topics and will continue to learn about them through the course of my work, but I’m never going to be the expert that I want to be if I can’t narrow my focus.

Let It Go

To narrow my focus, it’s time to let some of my interests go. Time to allow them to be things I am aware of, but not actively pursuing. Virtualization, Data Center, and SDN can no longer be topics of study. I’ll learn what I need to know as projects demand it, but I will not seek out knowledge in these spaces. I work more with R&S and will keep a bit more current with that, but it still won’t be my focus. Practically, this means actively reducing inputs. I need to unsubscribe from some blogs and podcasts. I need to use my VCP5 exam voucher and regardless of pass or fail, just walk away. If I unfollow you on twitter, I apologize; you’ve been moved out of my main timeline and into a list.

Wi-Fi or Bust

I’m putting the bulk of my time that can be devoted to studying, learning, and generally keeping current, into the realm of Wi-Fi. There is also sort of a vague tie in to HAM radio, which is a bonus. Wi-Fi is taking up more and more of my time at the office. The problems are interesting and RF is a topic I’m passionate about (see also, HAM radio). Wi-Fi, as an industry, has a lot going on and it is the future of the access layer. I like Wi-Fi and have more interest in it than with anything else, so it’s Wi-Fi or bust.

Niggling things to get in my way include my CCNP R&S, which is due for recertification. I need to pass a CCNP level exam, but I haven’t decided for sure what I’m going to do. I’m torn between an exam towards CCNP Wireless, the ARCH exam (which would grant the CCDP), or just taking TSHOOT to get the recert out of the way. What I really want to be studying right now is the CWNA, so I’m leaning towards TSHOOT just to remove that pressure…

Thick or Thin

I say all this publicly for two reasons. First, it is easier to follow through with a commitment when you state it for everyone to see. It makes the commitment real and peer pressure (even if it’s just imagined) is a powerful force. Secondly, I say this in the hopes that you might start thinking about how you spend your own study time. Are you spreading it thinly over a wide swath of topics or thickly on something you are really passionate about? I can tell you that spreading it thin is unsatisfying. Focusing has more reward, even though you have to leave some things behind. Find what you are passionate about and chase it. I promise it’ll be worth it.

FIN