HI,

thankx for your reply

1.I have not put any name for Bridge Group Name.do i need to do that ??

2.Signal strength between 1522 RAP and 1522 MAP is 23db.1522 MAP cannot hear from any of the 1242 RAPs.Regulatory domain not supported for 802.11a/n radio for 1242 RAPs.

3.when 1522 MAP dissociates from 1522 RAP WLC generates following log:

Mesh child node '00:22:be:42:0b:00' is no longer associated with mesh node '00:22:be:43:4e:00'

Hi,

Adding a BGN on all the aps means that aps would give more priority to join aps with the same BGN. So what you can do is to enter the same BGN on the 1522 RAP and MAP and see if the network becomes stable. Please enter the BGN first on the MAP and then on the RAP since adding a BGN would automatically reset the access point. If you add a BGN first on the RAP, then the RAP would reboot and then you would have to wait for a longer time for the MAP to connect to the RAP again. Also, how long does the MAP stay connected before getting disconnected?

Regards,

Nagendra

Did you add the mac address of the MAP and RAP to the mac filtering list then make sure that the MESH mode for each AP is defined properly? A good SNR of 24 or better would be desired as well.

Hi

I have added the mac addresses of RAP and MAP in controller.Mesh mode is also configured properly.Default Bridge Data Rate for RAP and MAP is 24 mbps.I tried changing that also but couldn't solve the problem.Link SNR between RAP and MAP is 23db and it shows acceptable IN WCS.Can u guide me how can i increase SNR level of a particular AP and link SNR as well?

Hi,

I entered same BGN on 1522 RAP and 1522 MAP as per your suggestion but the problem remain unsolved.After one or two min of joining 1522MAP gets disconnected from controller.

Hi,

Just to summarize, the 1522 MAP joins the 1522 RAP, stays connected for a minute or two and then disconnects. Does this pattern keep repeating?

Can you provide the following information?

1. What WLC version are you using?

2. When the 1522 MAP joins, check the neighbor information? You can check this via Web interface or through the CLI using the "show mesh neigh detail .

3. Get a log of events on the ap using the "show ap eventlog . This will help know what exactly is happening with the ap. Please note that you ave to execute this CLI when the ap is connected to the WLC.

4. WLC configuration

Regards,

Nagendra

Hi,

1522 MAP joins 1522RAP only after I restart the 1522RAP ap but just for a min or two.Without doing this MAP never detects RAP.It was working fine before connecting 1242 RAP aps.

1.WLC Software Version 4.1.191.24M (Mesh)

2.Name of 1522MAP is 'MAP-AIT-shop-stores' and 1522RAP is 'RAP-B12-A13pillar'.Neighbor information after joining controller is here :

(Cisco Controller) >show mesh neigh detail MAP-AIT-shop-stores

AP MAC : 00:22:BE:43:4E:00 AP Name: RAP-B12-A13pillar

FLAGS : 86B UPDATED NEIGH PARENT BEACON

worstDv 0, Ant 0, channel 161, biters 0, ppiters 10

Numroutes 1, snr 0, snrUp 29, snrDown 28, linkSnr 26

adjustedEase 3448576, unadjustedEase 3448576

txParent 43, rxParent 26

poorSnr 0

lastUpdate 2487712291 (Tue Sep 24 16:43:15 1912)

parentChange 2258797272 (Sat Jun 24 05:12:56 1905)

Per antenna smoothed snr values: 26 0 0 0

Vector through 00:22:BE:43:4E:00

Vector ease 1 -1, FWD: 00:22:BE:43:4E:00

(Cisco Controller) >show mesh neigh detail RAP-B12-A13pillar

AP MAC : 00:22:BE:42:0B:00 AP Name: MAP-AIT-shop-stores

FLAGS : 961 UPDATED CHILD BEACON

worstDv 255, Ant 0, channel 161, biters 0, ppiters 10

Numroutes 1, snr 0, snrUp 28, snrDown 29, linkSnr 28

adjustedEase 0, unadjustedEase 0

txParent 0, rxParent 0

poorSnr 0

lastUpdate 2487712947 (Tue Sep 24 16:54:11 1912)

parentChange 0

Per antenna smoothed snr values: 27 0 0 0

Vector through 00:22:BE:42:0B:00

Vector ease 1 3048576, FWD: 00:22:BE:43:4E:00 00:22:BE:42:0B:00

3.I didn't get any event logs from this command you provided.But from WCS i got these alarms and events :

'AP 'MAP-AIT-shop-stores', interface '802.11a' is down on Controller '10.7.51.10'.Max retransmissions for the AP have reached. '

'AP 'MAP-AIT-shop-stores', interface '802.11b/g' is down on Controller '10.7.51.10'.Max retransmissions for the AP have reached. '

4.WLC configuration:

(Cisco Controller) >show running-config

802.11a cac voice tspec-inactivity-timeout ignore

802.11a cac voice stream-size 84000 max-streams 2

802.11a channel global off

802.11a rate supported 12

802.11a rate supported 24

802.11b cac voice tspec-inactivity-timeout ignore

802.11b cac voice stream-size 84000 max-streams 2

802.11b channel global off

advanced 802.11a channel add 165

advanced 802.11a profile coverage global 15

advanced 802.11a profile foreign global 60

advanced 802.11a profile level global 12

advanced 802.11b profile foreign global 60

advanced 802.11b profile clients global 15

advanced 802.11b profile level global 12

advanced 802.11b profile coverage global 15

advanced location expiry tags 1200

advanced location expiry client 150

advanced location expiry calibrating-client 30

advanced location expiry rogue-aps 1200

Cisco Public Safety is not allowed to set in this domain

auth-list ap-policy ssc enable

auth-list add mic 00:22:be:41:e3:00

auth-list add mic 00:22:be:42:0b:00

auth-list add mic 00:22:be:43:4e:00

auth-list add mic 00:23:5e:03:b2:14

auth-list add mic 00:23:5e:03:b2:c6

country IN

dhcp create-scope DHCP Scope

dhcp create-scope Electronic Shop

dhcp address-pool DHCP Scope 10.7.51.12 10.7.51.254

dhcp address-pool Electronic Shop 10.7.24.240 10.7.24.250

dhcp default-router DHCP Scope 10.7.51.1

dhcp default-router Electronic Shop 10.7.24.1

dhcp enable DHCP Scope

dhcp enable Electronic Shop

dhcp dns-servers DHCP Scope 10.7.24.2 172.16.7.86

dhcp dns-servers Electronic Shop 10.7.24.2 172.16.7.86

dhcp domain DHCP Scope lthed.com

dhcp domain Electronic Shop lthed.com

dhcp network DHCP Scope 10.7.51.0 255.255.255.0

dhcp network Electronic Shop 10.7.24.0 255.255.255.0

interface address ap-manager 10.7.51.11 255.255.255.0 10.7.51.1

interface address management 10.7.51.10 255.255.255.0 10.7.51.1

interface address service-port 192.168.1.1 255.255.255.0

interface address virtual 1.1.1.1

interface dhcp ap-manager primary 10.7.51.10

interface dhcp management primary 10.7.51.10

interface dhcp service-port disable

interface port ap-manager 1

interface port management 1

known ap add 00:30:5b:02:3b:9f

load-balancing window 5

wlan apgroup add EleShop Electronic Shop

logging buffered 2

macfilter add 00:0e:35:90:ee:85 0 management U1

macfilter add 00:17:23:06:54:54 0 management U2

macfilter add 00:17:23:06:59:4d 0 management U3

mesh client-access enable

mesh security rad-mac-filter disable

mesh security eap

mgmtuser add admin **** read-write

mobility group domain Mobility

mobility group member add 00:23:33:b2:c3:c0 172.16.5.1 Mobility

msglog level critical

network telnet enable

network broadcast enable

network mgmt-via-wireless enable

network fast-ssid-change enable

network rf-network-name none

radius auth add 1 172.16.7.12 1812 ascii ****

radius auth rfc3576 enable 1

radius auth retransmit-timeout 1 5

snmp version v2c enable

snmp version v3 enable

snmp trapreceiver create WCS 10.7.24.39

snmp trapreceiver mode enable WCS

syslog 172.16.7.12

sysname WLC1-T

trapflags 802.11-Security wepDecryptError disable

trapflags rrm-profile load disable

trapflags rrm-params tx-power disable

trapflags rogueap disable

wlan create 1 LTAIT LTAIT

wlan mac-filtering enable 1

wlan session-timeout 1 1800

wlan session-timeout 2 disable

wlan wmm allow 1

wlan wmm allow 2

wlan radius_server auth add 1 1

wlan radius_server acct disable 2

wlan security static-wep-key encryption 1 104

wlan security wpa disable 2

wlan security wpa wpa1 enable 1

wlan security wpa wpa1 ciphers tkip enable 1

wlan security wpa wpa2 disable 1

wlan dhcp_server 1 0.0.0.0 required required

wlan dhcp_server 2 0.0.0.0 required required

wlan enable 1

wlan enable 2

Thanks for the information.

From the WCS logs, it seems to indicate that the 802.11a interface on the MAP is going down and that means it can't talk to the RAP anymore. Can you check on the WLC and see if the 802.11a interface on the RAP is steady and not flapping? Make sure that interference is not an issue on the 802.11a channel that you have assigned to the RAP. Also, ensure that the power to the MAP is not causing an issue with the 802.11a interface going down.

Since you mentioned that both these 1522 aps were working before you tried putting the 1240 aps in the network, did you make any changes on the WLC to accomodate the 1240s?

If it is possible, it would be good to get the following debugs on the controller at the time when the 1522 MAP is joining and then disconnecting:

debug lwapp events enable

debug lwapp errors enable

debug mesh security events enable

debug mesh security errors enable

Regards,

Nagendra

802.11a interface on the RAP is steady and there are no interference issues as well.Power settings to the MAP is absolutely fine.

We didn't make any changes to existing setup after connecting 1242 RAPs.We just connected 1242 APs and configured them as a RAP.

I have attached the debug o/ps wen 1522 MAP connects and disconnects.One debug o/p i have already posted in forum.

Hi,

I went through the debugs, but the debugs didn't give much information on why the MAP got disconnected. So, not much luck with the debugs too.

Since the logs from the WCS suggested that the 802.11a interface of the MAP went down, I suggest we try the following in order:

1. Change the channel on the RAP and see if it makes a difference.

2. Increase the SNR between the RAP and MAP to around 28-30. You can do this by increasing the power level on the rap/map.

3. If both 1 & 2 doesn't work, can you clear the configuration of both the aps and see if that works?

As you mentioned in one of your mails, the 1240s initially couldn't join because of some regulatory domain issues and later you mentioned that they are now connected as RAPs. So, are all the 1240s operating normally? If so, how were they able to join the WLC?

Regards,

Nagendra

Hi,

I tried all these possibilities before only so many times but doesn't work.Also checked with clearing the Aps.1242 RAP APs can join the WLC but they cannot detect any of the 1522 APs may be because of regulatory domain not supported for 802.11a radio.But 1242Aps as a RAP works fine..