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- About Mohammad Ali
04-16-2019
Mohammad Ali
Member since
06-30-2010
Frequent Contributor
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
04-16-2019
05:51 AM
04-16-2019
05:51 AM
Hey Scott, I know this post is old but wanted to verify this SSID in called station ID did you face any issues with the newer versions? I'm wondering if 7.4 had an issue but got fixed perhaps? Looks like 8.x is fine. Thank you in advance for confirming.
... View more
Created by
Mohammad Ali
in Cisco Bug Discussions
in Cisco Bug Discussions
03-15-2019
06:16 AM
03-15-2019
06:16 AM
So looking at the debug below. Every time Radio 1 and 0 show, "send OFFCHAN req" they are going off channel per this bug?
Mar 15 12:59:58 kernel: [*03/15/2019 12:59:58.0914] DOT11_DRV[1]: Rad: 1 chan: 60 | nf: 97
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9078] DOT11_DRV[1]: send OFFCHAN req: inprog = 0, type = 5 channel 56 width 3
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9079] DOT11_DRV[1]: map_off_channel_type(3665): input: 4 return 4
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9079] DOT11_DRV[1]: wcp/RadDrv1 :: Dot11BaseDriver vendor_set_80211_param op:86 commit:0 radio_param:1 vap_id:0
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9143] DOT11_DRV[1]: Ignoring the channel change notification
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9770] DOT11_DRV[1]: process_off_channel_done(3819): chan: 56 nf: 89 status: NDP DFS Tx Cancelled
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9771] DOT11_DRV[1]: wcp/RadDrv1 :: Dot11BaseDriver off_chnl_complete: NDP DFS Tx Cancelled status 9 inprog = 0, type = 0 channel 56 req->id 104334777
Mar 15 13:03:25 kernel: [*03/15/2019 13:03:25.9771] DOT11_DRV[1]: Rad: 1 chan: 56 | nf: 89
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6032] DOT11_DRV[0]: send OFFCHAN req: inprog = 0, type = 4 channel 56 width 3
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6057] DOT11_DRV[0]: map_off_channel_type(3665): input: 3 return 0
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6057] DOT11_DRV[0]: wcp/RadDrv0 :: Dot11BaseDriver vendor_set_80211_param op:86 commit:0 radio_param:1 vap_id:0
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6122] DOT11_DRV[0]: Ignoring the channel change notification
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6764] DOT11_DRV[0]: process_off_channel_done(3819): chan: 56 nf: 86 status: Success
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6765] DOT11_DRV[0]: wcp/RadDrv0 :: Dot11BaseDriver off_chnl_complete: Success status 1 inprog = 0, type = 0 channel 56 req->id 33555898
Mar 15 13:03:31 kernel: [*03/15/2019 13:03:31.6765] DOT11_DRV[0]: Rad: 0 chan: 56 | nf: 86
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.0580] DOT11_DRV[1]: send OFFCHAN req: inprog = 0, type = 5 channel 120 width 3
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.0581] DOT11_DRV[1]: map_off_channel_type(3665): input: 4 return 4
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.0581] DOT11_DRV[1]: wcp/RadDrv1 :: Dot11BaseDriver vendor_set_80211_param op:86 commit:0 radio_param:1 vap_id:0
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.0645] DOT11_DRV[1]: Ignoring the channel change notification
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.1272] DOT11_DRV[1]: process_off_channel_done(3819): chan: 120 nf: 89 status: NDP DFS Tx Cancelled
Mar 15 13:03:33 kernel: [*03/15/2019 13:03:33.1273] DOT11_DRV[1]: wcp/RadDrv1 :: Dot11BaseDriver off_chnl_complete: NDP DFS Tx Cancelled status 9 inprog = 0, type = 0 channel 120 req->id 108531132
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Labels:
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-30-2019
10:10 AM
01-30-2019
10:10 AM
I'm pretty sure there is no RF Profile or any custom settings just a global setting and its 1, 6, 11. Country is US 802.11bg:-A 802.11a:-A
Now one thing I'm noticing that AP's with a part number -B in them does not have this error message.
I can understand that for 5 GHz but why for 2.4 GHz?
Update: Found other AP's with 802.11bg:-A 802.11a:-A and not throwing that message.
... View more
01-30-2019
08:29 AM
I'm trying to figure out what exactly is this telling me?
20028,AP: The assigned channel is not in the DCA list. AP slot: 802.11b
I checked the RF Profiles and all areas and for 2.4 GHz only channels 1, 6, 11 are checked. So why this message?
... View more
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-11-2019
05:44 PM
01-11-2019
05:44 PM
I understand the client limitations and using only channels that are supported by the clients. Already know that part and have verified all that using pcaps and vendor tech specs. Back to the main question. I still need to know why Cisco document says that WLC will not use those channels in US and Canada. Because that statement is not true.
1- Cisco 2602 is 802.11n and I was not able to assign 116 or 140 manually with 40MHz width. Makes sense on 140 as 40MHz because 144 was allowed when ac came out
2- Cisco 3800 which is ac wave 2, allows manual configuration of both 116/120 and 140/144 at 40MHz.
3- Cisco’s statement in that doc states that WLC will not use those channels however I have seen RRM utilize those channels especially on IW3700s so technically that statement is wrong and/or doesn’t make sense because those channels do get assigned.
So is it possible that the document needs updating ? Hope this makes more sense. It’s critical to verify this statement from Cisco due to multiple reasons hence I’m trying to find something solid on that.
Thank you.
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Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-11-2019
03:31 PM
01-11-2019
03:31 PM
Cisco doc says,
Note
Channels 116, 120, 124, and 128 are not available in the U.S. and Canada for 40-MHz channel bonding.
However I can assign them on a 3800 AP. NOTE: I can not on my "n" AP's so does this apply to "n" AP's only and document just needs an update?
Also RRM does choose 116/120 and 140/144 on 3700's so the statement in the document is confusing. Can anyone especially Cisco verify what does that statement mean?
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/radio_resource_management.html
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Labels:
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-11-2019
07:06 AM
01-11-2019
07:06 AM
Got it thank you for confirming. Hopefully with some heavy fine tuning RRM will make better decisions now. I don't know why Cisco won't add that feature.
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Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-11-2019
05:48 AM
01-11-2019
05:48 AM
Thank you Leo, I should have explained better. I know how to do all that but what I am looking for a way so that I can prevent OBSS issue. I want to be able to specify to only bond up or down. So if one AP is 36,44 I don't want another to do 44,36.
... View more
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
01-10-2019
02:51 PM
01-10-2019
02:51 PM
Is there no way to specify in Cisco WLC if I want to Bond up or down or both? Seems like its both right now and that ends up causing OBSS issues at times. Other vendors allow it and I'm surprised if Cisco still does not have this feature.
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Labels:
Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
12-06-2018
05:41 AM
12-06-2018
05:41 AM
Thank you so much for the additional information, I had read a lot about all this on your blog too. So I finally was I believe able to get it working how it should under Flexconnect as well. It makes sense that AP would remark the frames as Best Effort because it does not know about the application and per Cisco Wireless design it is not keeping those markings. So with AVC basically we are defining it and being very specific to let the AP know if the Application is "xyz" mark it as voice or video etc. Couple of things: - Before AVC did the QoS not work from the AP to client? - Even when I marked Facetime as Platinum or Gold (see attached screen shot). I was thinking I should have gotten the UP value of 5 and 4, but I got like 6 and 5. I'm thinking that might require some additional configuration tune up.
Bottom line looks like AVC Profiles need to be created and have to define the applications under there in order for this to work properly. Otherwise AP does not know what to do with it. Just like we would do it on the LAN side.
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Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
12-05-2018
04:28 PM
12-05-2018
04:28 PM
That is correct I'm trying to play around with FlexConnect AVC to see if that works.
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Created by
Mohammad Ali
in Wireless and Mobility
in Wireless and Mobility
12-05-2018
02:01 PM
12-05-2018
02:01 PM
Thanks for the reply Rasika here are the results:
1- Local mode with Platinum profile assigned to the WLAN (no AVC profile) same results, clients as sa or ta = voice/video but AP as TA it was all Best Effort.
2- Local mode with Platinum profile assigned to the WLAN - Also custom AVC Profile with Facetime in it being marked as Voice I got voice from client to AP and AP to client
3- Local mode with Platinum profile assigned to the WLAN - Also custom AVC Profile with Facetime in it being marked as Video I got voice from client to AP and AP to client.
... View more
12-05-2018
08:49 AM
Running 8.2.170.0
Flex Connect
5508 WLC and 2602i AP
I'm running into an issue where it looks like AP is not marking the traffic whenever it is a "TA".
Two iPhones connected to the same AP on 5GHz
Initiate Facetime
I see over the air capture traffic from clients to the AP is voice/video
Any traffic from the AP(TA) to the clients is Best Effort.
I even created a custom AVC profile for flex connect, added facetime in there and set it to mark it. But I don't think that is the issue here. Why would the AP be re marking everything back to the clients as Best Effort?
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Labels:
11-20-2018
05:35 AM
I have 8.2.170.0 running. NOTE: I tested this with a Meraki AP and Meraki switch and it seems to be perfect. Facetime between two iPhones same scenario started with BE and then changed to Voice and Video UP.
BTW I'm not seeing the QoS Map even enabled in the WLC, based on the following document looks like it not only needs to be enabled but configured. I wonder if that is breaking it and the fact that it is not even enabled not sure what is being applied and its just putting everything in BE bucket.
https://clnv.s3.amazonaws.com/2018/usa/pdf/BRKCRS-2501.pdf
... View more
11-19-2018
11:40 AM
Thank you for that, something is still not right and doesn't make sense with the AP's then. Tried Facetime with Cisco AP's and couple of other vendors and every time if the AP is a "ta" it shows BE to both clients. Not sure why AP is just disregarding the UP of 5 or 6 from the clients and converting it to 0.
... View more
Tuesday
Hey Scott, I know this post is old but wanted to verify this SSID in
called station ID did you face ...
Created by
Mohammad Ali
in Cisco Bug Discussions
03-15-2019 06:16 AM
03-15-2019 06:16 AM
So looking at the debug below. Every time Radio 1 and 0 show, "send
OFFCHAN req" they are going off ...
Created by
Mohammad Ali
in Wireless and Mobility
01-30-2019 10:10 AM
01-30-2019 10:10 AM
I'm pretty sure there is no RF Profile or any custom settings just a
global setting and its 1, 6, 11...
01-30-2019 08:29 AM
I'm trying to figure out what exactly is this telling me? 20028,AP: The
assigned channel is not in t...
Created by
Mohammad Ali
in Wireless and Mobility
01-11-2019 05:44 PM
01-11-2019 05:44 PM
I understand the client limitations and using only channels that are
supported by the clients. Alrea...
Created by
Mohammad Ali
in Wireless and Mobility
01-11-2019 03:31 PM
01-11-2019 03:31 PM
Cisco doc says, Note Channels 116, 120, 124, and 128 are not available
in the U.S. and Canada for 40...
Created by
Mohammad Ali
in Wireless and Mobility
01-11-2019 07:06 AM
01-11-2019 07:06 AM
Got it thank you for confirming. Hopefully with some heavy fine tuning
RRM will make better decision...
Created by
Mohammad Ali
in Wireless and Mobility
01-11-2019 05:48 AM
01-11-2019 05:48 AM
Thank you Leo, I should have explained better. I know how to do all that
but what I am looking for a...
01-10-2019 02:51 PM
Is there no way to specify in Cisco WLC if I want to Bond up or down or
both? Seems like its both ri...
12-06-2018 05:41 AM
Thank you so much for the additional information, I had read a lot about
all this on your blog too. ...
12-05-2018 04:28 PM
That is correct I'm trying to play around with FlexConnect AVC to see if
that works.
12-05-2018 02:01 PM
Thanks for the reply Rasika here are the results: 1- Local mode with
Platinum profile assigned to th...
12-05-2018 08:49 AM
Running 8.2.170.0 Flex Connect 5508 WLC and 2602i AP I'm running into an
issue where it looks like A...
11-20-2018 05:35 AM
I have 8.2.170.0 running. NOTE: I tested this with a Meraki AP and
Meraki switch and it seems to be ...
Public Statistics
| Date Registered | 06-30-2010 08:52 AM |
| Date Last Visited | 04-16-2019 09:11 AM |
| Total Messages Posted | 1,040 |
| Total Helpful Votes Received | 204 |
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