Next up, we want to do some configuration around radio resource management as
well as get our mobility groups configured.
Well, the way we're going to do that is we're going to log into our controller
here, go to configuration,
and we're going to find radio configurations here, and then our R.M. is right
there.
So what we're going to find is we've got different elements of the radio space
that we want to manage.
And there are a few primary categories that we're going to want to especially
pay attention to,
but let's just go ahead and talk about all of the options. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
but let's just go ahead and talk about all of the options.
So first of all, when we go to radio resource management, we see that we can
perform individual configurations based on the band,
which is pretty cool. So if I go to the 5 gigahertz band, under general, I can
see that we can define the different thresholds for clients to connect,
as well as the number of clients. Coverage is interesting. We can also define
some thresholds in here.
We have to be very careful about changing things from the default,
but this is where we could enable coverage hold detection. This is self-healing
. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
.
The concept of one AP goes down, that other APs could boost their signal to try
to cover that space.
So if we do want to enable that, this is where we can, or I may as should say,
disable it because it's enabled by default,
then we can come here. We also have dynamic channel assignment.
So DCA, this is where I can allow my wireless line controller to figure out
what channel is going to be best.
And I can scroll all the way down here and see which channels are eligible.
So if I need to tweak this for any specific reason, maybe regulatory WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
So if I need to tweak this for any specific reason, maybe regulatory
requirements where I live is going to require me to not use specific channels,
or maybe I just want to limit the channels in use for one reason or another. I
can do that here.
I can allow the wireless line controller to dynamically change my channel width
s and so on and so forth.
From here, we've got transmit power control, TPC. This allows me to control the
power level of my access points,
and I can make it so that maybe their maximum power level is like 24 dBm WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
and I can make it so that maybe their maximum power level is like 24 dBm
instead of 30 dBm, whatever makes sense for my environment.
And then RF grouping here, this is where we can actually configure our RF group
status.
So again, we configured the group name of being CBTM, and we see the group
leader that's been elected.
Again, I only have one wireless line controller, so it's this controller, WLC1.
However, we can say,
"Hey, I want you to be the leader explicitly. I can check this box here."
And that's pretty much where it comes down to. Here, I can see the list of WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And that's pretty much where it comes down to. Here, I can see the list of
controllers that would be in this RF group.
And then spatial reuse is interesting. This is a Wi-Fi 6 enhancement that
allows me to set BSS colors,
and effectively allows me to be more efficient with my transmit in a high
density network.
So again, this isn't a wireless course. We don't need to drill into the nitty-
gritty details of any one of these.
Just generally speaking, understand that radio resource management controls the
channels, controls the power, controls the RF. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
channels, controls the power, controls the RF.
Well, at least I have my option in here for RF groups, so I need to understand
what the RF groups are.
And then the self-healing here, the coverage hole detection is again a big part
of the Cisco lightweight wireless solution.
Now, lastly, we want to take a look at mobility groups. I can go to
configuration here. Once again, go to the wireless section.
And now we see a mobility area here. So I'm going to click on mobility, and
this will allow me to change the mobility group name.
If I want to use multicast, which is going to be advised, if I have a lot of WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
If I want to use multicast, which is going to be advised, if I have a lot of
wireless lane controllers that are layer three separated,
then I would probably want to use multicast because otherwise it's a full mesh
of unicast configurations.
Now, something to keep in mind with mobility groups is the fact that I do have
to configure my peers.
So I come to peer configuration, and I can add a mobility peer here. I've got
to enter the MAC address and the IP address and the group name.
And this is going to be an important part of configuring mobility groups, which WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And this is going to be an important part of configuring mobility groups, which
leads to seamless roaming, potentially even across layer three boundaries.
So we covered mobility groups in a lot of detail earlier on, but this is where
we configure it. Again, it's under configuration, then wireless,
and then mobility to configure my mobility group name, as well as my mobility
group peers.