Does a 2504 WLC support mobility group with WiSM1 on 6500 Series

if a 2504 WLC support mobility group with WiSM1 on 6500 Series.
Model: WLC 2504
Software version: 7.3.101.0
Model: WiSM1
Software verion: 7.x.x.x

Yes and no.
Yes, mobility is supported.
No because I personally won't recommend inter-controller roaming. This is more true when you're dealing with 4400/WiSM-1. This is even more true when you've got WLC running two (or more) different codes.

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WLC 5500 mobility group failover

Hey
I have a Question i am testing mobility group with
Failover for redundend connection between 2
Cisco 5500 Wlc.
On both the controllers i got the mobility working
And both the controllers have the same version
And configuration.
But when i unplug the main controller the access-
Points don't convers to the second one
The just keep on creaming can't find the main controller
Also with this thus the second wlc need to have the same
Interface ip address like managment..??
Thanks

What do you mean by "convers". An AP will only join one wlc and when that primary wlc is no longer available, should failover to the other/secondary wlc. Mobility is required for an AP to know about all the other APs in that mobility group. And if not configured correct, your AP will only be able to join that wlc.
Thanks,
Scott Fella
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Hello all,
I am not sure if this is a bug, but here we go. I configured 2 controllers in a mobility group using multicast signalling.
I expect that from the moment i enable multicast, the controller joins this group AND STAYS IN THIS GROUP so he will get messages from all other controllers.
On the first hop router, i can see the join:
#sh ip igmp mem 239.194.248.10
Flags: A - aggregate, T - tracked
       L - Local, S - static, V - virtual, R - Reported through v3
       I - v3lite, U - Urd, M - SSM (S,G) channel
       1,2,3 - The version of IGMP, the group is in
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       / - Filtering entry (Exclude mode (S,G), Include mode (G))
Reporter:
       <mac-or-ip-address> - last reporter if group is not explicitly tracked
       <n>/<m>      - <n> reporter in include mode, <m> reporter in exclude
Channel/Group                  Reporter        Uptime   Exp. Flags Interface
*,239.194.248.10               10.102.78.98    00:00:05 02:54 2A     Vl350
However, this entry does not get refreshed. I have the impression that the controller does not reply to the IGMP general queries:
IGMP(0): Send v2 general Query on Vlan350 -> no replies
#sh ip igmp mem 239.194.248.10
Flags: A - aggregate, T - tracked
       L - Local, S - static, V - virtual, R - Reported through v3
       I - v3lite, U - Urd, M - SSM (S,G) channel
       1,2,3 - The version of IGMP, the group is in
Channel/Group-Flags:
       / - Filtering entry (Exclude mode (S,G), Include mode (G))
Reporter:
       <mac-or-ip-address> - last reporter if group is not explicitly tracked
       <n>/<m>      - <n> reporter in include mode, <m> reporter in exclude
Channel/Group                  Reporter        Uptime   Exp. Flags Interface
*,239.194.248.10               10.102.78.98    00:02:35 00:24 2A     Vl350
>> 20 seconds from expiry.
#sh ip igmp mem 239.194.248.10
Flags: A - aggregate, T - tracked
       L - Local, S - static, V - virtual, R - Reported through v3
       I - v3lite, U - Urd, M - SSM (S,G) channel
       1,2,3 - The version of IGMP, the group is in
Channel/Group-Flags:
       / - Filtering entry (Exclude mode (S,G), Include mode (G))
Reporter:
       <mac-or-ip-address> - last reporter if group is not explicitly tracked
       <n>/<m>      - <n> reporter in include mode, <m> reporter in exclude
Channel/Group                  Reporter        Uptime   Exp. Flags Interface
>> 20 seconds later, gone
>> At this moment the controller doesn't receive any messages anymore from remote controllers:
>>sh ip mroute 239.194.248.10
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
       L - Local, P - Pruned, R - RP-bit set, F - Register flag,
       T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
       X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
       U - URD, I - Received Source Specific Host Report,
       Z - Multicast Tunnel, z - MDT-data group sender,
       Y - Joined MDT-data group, y - Sending to MDT-data group
       V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.194.248.10), 00:05:38/00:00:21, RP 10.102.90.20, flags: SP
Incoming interface: Port-channel30, RPF nbr 10.102.78.13, RPF-MFD
Outgoing interface list: Null
This is seen on 8500 platform running 7.4.100.60
We have also WISMs running at 7.0.230.0, and there it can be seen that the entry refreshes every minute (like it should be)
IGMP(0): Received v2 Report on Vlan950 from 10.96.9.67 for 239.194.240.1
IGMP(0): Received Group record for group 239.194.240.1, mode 2 from 10.96.9.67 for 0 sources
IGMP(0): Updating EXCLUDE group timer for 239.194.240.1
IGMP(0): MRT Add/Update Vlan950 for (*,239.194.240.1) by 0
Shouldn't the controller at all times stay joined in its mobiility group ?

ok, some more debugging.
I loaded up 7.4.100.60 on a 5500 controller and got the same result.
NOTE: my global multicast settings are:
Controller->General: AP Multicast Mode: UNICAST
Controller->Multicast->Global Multicast is NOT enabled
Controller->Mobility->Multicast Messaging: enabled and group is 239.194.240.3
With this config, the IGMP entry is not retained, and i see on the controller the message (debug bcast all):
>>processEthernetIGMPpacket Received IGMP Pkt from DS when either igmp snooping or global multicast is disabled.
So, i then enabled Global Multicast (Controller->Multicast->Global Multicast to enable), and then the IGMP entry is refreshed:
bcastReceiveTask: Sep 05 13:11:17.734: IGMP packet received over vlanid = 102 from DS side
*bcastReceiveTask: Sep 05 13:11:17.734: received an IGMP query for multicast vlan = 102 address 0.0.0.0 intfnum = 3
*bcastReceiveTask: Sep 05 13:11:17.734: IGMP report scheduled for grp=0xefc2f003, vlan=102, intf=3, slot=70, maxRespTime=100
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004586: Sep 5 15:11:50.710 CEST: IGMP(0): Send v2 general Query on Vlan101
Flags: A - aggregate, T - tracked
       L - Local, S - static, V - virtual, R - Reported through v3
       I - v3lite, U - Urd, M - SSM (S,G) channel
       1,2,3 - The version of IGMP, the group is in
Channel/Group-Flags:
       / - Filtering entry (Exclude mode (S,G), Include mode (G))
Reporter:
       - last reporter if group is not explicitly tracked
       /      - reporter in include mode, reporter in exclude
Channel/Group                  Reporter        Uptime   Exp. Flags Interface
*,239.194.240.3                10.102.180.218 00:38:51 02:28 2A     Vl102
Now, on the 5500 controller i can enable global multicast, while AP multicast mode is in UNICAST.
However, on the 8500 controller, running the same firmware (7.4.100.60), when i try to enable "Global Multicast", i get:
"Multicast-Unicast mode does not support IGMP/MLD snooping. Config mode to multicast-multicast first". I did not get this message on the 5500.
So when switching to Multicast->Multicast mode, and then enabled "Global Multicast", then it works.
This means that in order to have mobility messaging working on 8500 in multicast, you MUST put the AP Multicast Mode to Multicast AND you must enabled "Global Multicast", otherwise it won't work.

2500 series support mobility groups?

Do you know if the new 2500 series controller supports things like mobility groups? Could I use 2 of these and do inter-controller roaming.
Also do you know if this would work with a 2106 controller and a 2505 controller or are they 2 completely independent controllers only knowing about their own APs??

Hi smailmilak,
no mobility and roaming is not the same. You need for roaming between controllers a mobility configuration.
If you have only one 2500 WLC and 25 or more or less AP roaming between the AP on the one WLC will work well.
This calls Intra-Controller roaming
If you have 2 or more WLCs you need a proper mobility config for roaming between APs located on differen WLC.
This Calls Inter-Controller roaming.
More informations are here:
http://www.cisco.com/en/US/docs/wireless/controller/7.0/configuration/guide/c70mobil.html

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You are getting FANCY Tim!
For starters you should really use a switch because sometimes you may get odd behavior connecting right to the WLC. Also the WLC is like a layer 2 switch and doesnt route. Ive done something similar in fact. We call it offnet. We break out the ports and have 1 going external. We used a switch inbetween the ap and comcast line.
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Does a wireless lan controller support isl encapsulation?
No.
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What switch is this?

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Replace WLC Mobility Group Anchor

We have 2 5508 and 1 4402 WLCs and all belong to the same mobility group. The 4402 does not have any access points and does nothing more than serve as a mobility anchor for our public wireless SSID. We are planning to replace the 4402 with a new 2504 unit which will have the same configuration including IP as the 4402. Is there anything I need to do with the mobility groups when we remove the 4402?
Thanks for any help.
Jeff

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Mobility 'Control and Data Path Down' between 4404 and 5508 WLC's.
Hello, we have 5 x 4404 WLC's running 7.0.240.0 with mobility configured fine between them.
We have installed a 5508 with HA running 7.4.110.0, and have tried to add it to the mobility group, however we see 'Control and Data Path Down' between the new 5508 and all the 4404 controllers.
All controllers have:
The same virtual address
Management interfaces are in the same VLAN, and indeed all the controllers connect via the same pair of 3750X stacked switches.
The default mobility domain name is the same
4404 output when issung the command 'show mobility summary'
Symmetric Mobility Tunneling (current) .......... Enabled
Symmetric Mobility Tunneling (after reboot) ..... Enabled
Mobility Protocol Port........................... 16666
Default Mobility Domain.......................... SGH-Mobility
Multicast Mode .................................. Disabled
Mobility Domain ID for 802.11r................... 0xe209
Mobility Keepalive Interval...................... 10
Mobility Keepalive Count......................... 3
Mobility Group Members Configured................ 6
Mobility Control Message DSCP Value.............. 0
5508 ouput when issueing the command 'show mobility summary'
Mobility Architecture ........................... Flat
Mobility Protocol Port........................... 16666
Default Mobility Domain.......................... SGH-Mobility
Multicast Mode .................................. Disabled
Mobility Domain ID for 802.11r................... 0xe209
Mobility Keepalive Interval...................... 10
Mobility Keepalive Count......................... 3
Mobility Group Members Configured................ 6
Mobility Control Message DSCP Value.............. 0
I've spent quite some time double checking all the configurations to no avail.
Has anybody seen this problem before?
Kind regards
Dave Bell

Thanks Sandeep.
I am well versed with WLC's and mobility, however trying to add a 5508 to a mobility group with 4404's has come up with a bit of a curve ball.
All the 4404 controllers all joined the mobility group fine, no problems at all - its only the 5508 I am struggling with.
In theory its simple, populate the IP address, and MAC addres of the management interface of the remote WLC, as long as the management interfaces are in the same VLAN, and the Default Mobility Domain Name are the same it should come up.
Interestingly I have found the 5508 reports its own management interface MAC address incorrectly when viewing the Mobility Groups:
For example:
{Screen shot WLC1.jpg}
5508 management address is 10.95.x.x and when viewing the Mobility Management screen it shows its own MAC address as bc:16:65:f9:37:60.
however!
From our router is I do an sh arp | i 10.95.x.x (controller management address), I see:f872.eaee.becf.
{Screen shot wlc2.jpg}
Hence the WLC reports as: bc:16:65:f9:37:60
and
The network reports as: f872.eaee.becf for the same IP address.
I have changed the other WLC's to the MAC adress seen on the network for the new controller, aka changed from
bc:16:65:f9:37:60
to
f8:72:ea:ee:be:cf
I now see the controllers reporting the mobility with the new controller as 'Control Path Down', however I am at a loss as to what may be causing this?
Kind regards
Dave Bell

Can we create Mobility group between WISM2 and WLC 5500

Dears,
I need your feedback urgent please,
Can we create Mobility Group between WISM2 and WLC 5500
Firmware for WISM2 > 7.4.121.0
Firmware for WLC5500 > 6.0.196.0
I created Mobility Group with (IP address , MAC Address and Mobility group name) for Foreign Controller. if any configuration required from my side.
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Hi,
Controllers do not have to be of the same model to be a member of a mobility group. Mobility groups can be comprised of any combination of controller platforms.
Thats enough :)
Regards
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Does a 2504 WLC support mobility group with WiSM1 on 6500 Series

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