CCIE Wireless v3.1 Lab- FastLane and Adaptive Fast Transition

network dojo final video of the series and that's going to cover a couple of small topics being fast lane and adaptive fast transition both new technologies in this version of the lab so we'll start off with the adaptive fast transition so this is enabled on W Lance by default and when you ever see fast transition that's AO 2.11 R so it's that fast roaming technology that's the open standard doesn't rely on you know cease of cam or things like that so a lot more clients that can actually support this so what this does is that enables a o to die 11 R but in a sort of a secret way that only newer app aptly Apple devices iOS devices actually specifically are able to support so you know our phones or potentially tablets this is not supported as far as I can tell from just you know a MacBook laptop or something like that so the way this is going to work is that we advertise AO 2.11 our support but not in the normal security Arsen way we do it through a special information element in the beacons or pro responses and the Apple devices that are new enough code can look for this type of a thing and if it sees it and the device supports it which it won't see if it didn't support it when it joins up to the AP you can actually ask for AO 2.11 r as they associate and the controller can give it to them so the devices that don't support this feature they just either don't support it a lemon are at all or they do support 11 are but just standard 11 are not this adaptive fast transition mode they never look for that information element they don't see it advertised in the security portion of the beacons or the probe responses and so they just never asked for it even if they supported 11 are they don't ask for it so standard 11 our clients cannot take advantage of this it's specifically Apple or aptly iOS devices that are of a certain code level or newer so I think it started with now if it's I can't remember the code level but that's a relevant for for what we care about for the lab here so the nice thing about this is there's really nothing much to do other than make sure it's turned on and it's on by default and there's no need to configure any of the other fast transition security options on the WLAN so if I was going to create a new WLAN I'll call it Jeff - pod one when we look at the layer two security tab we'll see that fast transition is set to adaptive by default and that's all I have to do I don't have to come down here and say Oh faster Anza Shanaya to that one X nope it's just regular air to down one X this is what we advertise to the regular clients out there but for the special iOS devices that understand and look for this stuff we include that little thing in the extra information element and so those devices can take advantage of it to that 11r everyone else stuck with regular 802 dot 1x at this point and then we can we still have the over the DES and reassociation timeout settings that we could you know tweak on top of things but this is all we do and again it's it's enabled by default so there's very little to to do with it just understand what that is and who it applies to and what happens for the devices that don't support it that's about it for that one so easy-peasy there the other feature is actually another one that there's really very little to talk about in terms of how to make it work but it's fast lane this is basically an auto QoS configuration macro where you say turn it on and then boom it just does a whole bunch of configurations on your behalf and again it's kind of meant to help out these Apple devices here so it's part of the that Apple partnership and so it does a whole ton of QoS configurations both on the WLAN as well as at the global level and it's just meant to help our our devices get generally good experience with very little knowledge required to to implement it so we we enable this on a per WLAN basis so the very first WLAN that we enable this on triggers the the massive config so there's a few per WLAN pieces of config but then there's a whole bunch of global configurations and so it does all that and then if you ever turned on Fastlane on subsequent W LANs really I mean those global configs are already there so it just really only impacts the the new WLAN you enable it on there's a big list it's actually pretty easy to see if you ever enable this on the CLI it could see a big old dump of everything that it's going to do so we'll show you the Apple we'll show you where it is in the GUI as well there's one conditional setting in here so if ABC is enabled it creates a special ABC profile and applies it to the double and if ABC is not enabled I think it might still create the profile but just it doesn't turn on ABC on your behalf it's just if ABC happens to be on the W and when you turn on Fastlane it will apply this special profile to the WN if you ever want to undo this because it is such a far-reaching thing there is a an option to undo the configs and it gets just about everything it's not every single last possible thing ever but it does a pretty good job so let's go ahead and show it to you but outside of turning it on or off there's not much else to know about it I guess so we will find this underneath the QoS tab and there's this Fastlane option so if we say enable warning if you continue as command will temporarily disable double ends that's fine we'll also override the file named autocue SABC profile so it's going to recreate one if you already have one name that and it's going to apply to the WLAN if application visibility is enabled you sure you want to do that so I'm gonna hit cancel here why don't I turn an application visibility and you'll actually see it it applies that let's go ahead and let's trigger this in the CLI and see the extra information that we get so it's config QoS Fastlane enable which double in do we want to turn it on I think mine was too so I mean yes okay here we go this is all the configure that's doing it so tells you after the fact but Oh still going still going okay let's go back up and kind of just see where are all the different parts that it's it's sticking its fingers in yeah sorry I'm not I'm not back up to the top yet okay so it shuts off our radios it configures the Platinum QoS profile to drop down the unicast and multicast to best-effort only voice gets the voice unicast crap regular WMU cache traffic gets the voice markings or can get the voice markings turns off the cost marking on it so no cost marking it does some rate limiting in the Platinum profile so it's setting some rate limiting settings so more stuff inside the Platinum profile kak it does a number of voice cack settings for both radios inside there and it cooks but I've been with it tweaks the edca parameters to a special Fastlane profile it's to see disables the QoS Maps resets the QoS Maps and then sets a whole bunch of QoS map settings a bunch more QoS Maps creates that EVC profile that it mentioned AVC profile blah blah blah assigns the QoS the Platinum profile to the WLAN that we were on assigns the AVC profile to the WLAN we're on and then re-enable x' the radius so all those things just by saying turn it on and if we refresh we should be able to to kind of run through and see these things so back to my WLAN we see that it flipped from silver up to platinum it applied that ABC profile because I had ABC turned on we can see that ABC profile I suppose we'd go under Wireless for that one huh there it is the autocue SABC profile and a whole bunch of rules within here we have the QoS profile that it did a bunch of stuff to the Platinum one specifically so I think it turned off any rate limiting if there was rate limiting turned on this was already set to voice but these two were set to voice before drop them down to best-effort it turned off the AO 2.1 p markings which is on by default underneath the radios the media we turned on voice k activities load-balancing fifty percent threshold with expedited bandwidth turned on so again kind of auto QoS e turn it on fire and forget puts a bunch of you know good general practice settings to treat voice well and again a lot of this is really meant to to play nice with how these are configured at least the newer ones of the the iphones are configured the QoS map trust dhcp so we move to a dhcp trust model in the upstream direction we have our maps we have a whole slew of dscp exception list so definitely working with our markings as well so that's what it does if you want to get rid of it you can turn it off on the WLAN and so if I turn off Fastlane let's see what happens fly so within it removed the profile from here and it dropped me back down to silver what about the global level to take away all those things at the global level now kuat's map still there Platinum stuff still the way it was so then for the global stuff there is under advanced QoS fast lane this revert global parameters to the defaults you hit that oh the other thing I didn't look at was the edca profile but this is no it's just another macro that just undoes all these things that it did and it kind of sets things back to the default so that's the the other odd thing is so maybe you had stuffs custom set in Voice cake and custom set in the Q s Maps well that just got overwritten when I turned it on and it's not gonna go back to what it what you had it before it goes back to what kind of what it was at the default levels and so if I go back to profiles it puts it back to voice voice voice it doesn't turn on arrow to that one P back again so that didn't get turned back on the key OS map is back to disabled all these exceptions are still in here but that's because I think of the there's a command to put the exceptions back to the default as opposed to just wipe the exceptions out so I guess it's not perfect but it doesn't get a bunch of things away edca parameters go back to www.donateyouraccount.com/davidpakmanshow

Channel: Network Dojo

Views: 1,222

Keywords:

Id: _LJX3KVHmNU

Length: 12min 24sec (744 seconds)

Published: Tue Jan 08 2019