Multicast between wirless clients on same AP and Mobility Group

We have a autonomous wireless setup with a WLSM and WLSE. I have an issue with where I have 2 wirless clients that need to communicate using a multicast address for an application to work.
The clients can ping each other but the multicast stream is not working between the clients. The SSID is part of a mobility group that sits on a Cat 6509 sup720.
A debug on the sup720 shows the upstream multicast from one of the clients but you see no activity downstream to the other client.
Tunnel multicast stats: -
Tunnel176 is up, line protocol is up
Internet address is 53.32.176.33/27
Multicast routing: enabled
Multicast switching: fast
Multicast packets in/out: 2619/0
Multicast boundary: not set
Multicast TTL threshold: 0
Multicast Tagswitching: disabled
Sup 720 Debug: -
May 9 15:15:31: IGMP(0): Send v2 Report for 224.0.1.40 on Tunnel176
May 9 15:15:31: IGMP(0): Received v2 Report on Tunnel176 from 53.32.176.33 for 224.0.1.40
May 9 15:15:31: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 53.32.176.33 for 0 sources
May 9 15:15:31: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
May 9 15:15:31: IGMP(0): MRT Add/Update Tunnel176 for (*,224.0.1.40) by 0
May 9 15:16:15: IP(0): s=53.32.176.40 (Tunnel176) d=225.0.0.38 id=11765, prot=17, len=68(54), mroute olist null
May 9 15:16:15: IP(0): s=53.32.176.40 (Tunnel176) d=225.0.0.37 id=11766, prot=17, len=68(54), mroute olist null
May 9 15:16:25: IGMP(0): Send v2 general Query on Tunnel176
May 9 15:16:25: IGMP(0): Set report delay time to 0.9 seconds for 224.0.1.40 on Tunnel176
Please help as I need to get the 2 clients communicating using the multicast stream.
Thanks
Martin

Have you enabled multicast mode on the controller ?
If so, in what mode ? Unicast or multicast ?
If you selected multicast mode, do you see the controller joining the original stream and sending it to the LWAPP distribution group to the other APs ?

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WLC 5508 and mobility groups

Hi,
We are using 2 WLC 5508 running 7.0.98.0 sw (AP's are 1142) at our primary site. They are hosting 3 different WLAN/SSID's, one for guest and the
other 2 are for corporate access. We have put the WLC's in a mobility group, say "AAAA".
Now we have the need for our UK peer site to publish a corp WLAN that exists in UK - at our site, and when trying to configure for that (following the c70cg.pdf) - I put the WLC's for UK in a new mobility group, say "BBBB". But i can't add our WLC's into that mobilty group
(i get a duplicate mac address message).
What's the correct way of configuring this, does all WLCs need to be in the same mobility group?
Is there some reason why we can't have 2 mobility groups? Is there any upside/downside to configuring 2 mob. groups?
Any clearification would be greatly appreciated
BR
//Mikael

I think you are misunderstanding , so far what you did on your local swedish site is correct. Your two swedish WLCs have to be in their own same mobility group so you can give seamless roaming to your wireless users across your swedish area without interruption.
On a WLC mobility group config page, you can have only one entry per WLC, this is why you are getting the duplicate error message.
WEBGUI - CONTROLLER - MOBILITY MANAGEMENT - MOBILITY GROUPS
If you want to put your 4 WLCs so they exchange mobility messages, the following has to happen on all 4 WLCs.
xx:xx:xx:xx:xx:xx 192.168.1.1 uk
yy:yy:yy:yy:yy:yy 192.168.1.2 uk
zz:zz:zz:zz:zz:zz 172.17.1.1 sweden
aa:aa:aa:aa:aa:aa 172.17.1.2 sweden
Note when you add WLC on the mobility section, the WLC start sending messages to each like, hey i have this client and you have that client and so on. But this has nothing to do with what you are trying to achieve.
With regards to the execs that are coming, yes, replicate the SSID and point it to the Radius Server they have in UK, add your swedish WLC(s) as a NAS on the Radius Server and it should work as if they were in UK. that should be enough and i advise you to do the following for mobility groups config.
on the two UK WLCs
xx:xx:xx:xx:xx:xx 192.168.1.1 uk
yy:yy:yy:yy:yy:yy 192.168.1.2 uk
on the two Swedish WLCs
zz:zz:zz:zz:zz:zz 172.17.1.1 sweden
aa:aa:aa:aa:aa:aa 172.17.1.2 sweden
hope i cleared it out for you. greeting from cold Belgium tonight :-) and hope the execs will enjoy Sweden!

HA N+1 and Mobility Groups

Hi all,
One question, can I have 2 WLC's on different Mobility Groups pointing to the same HA N+1 WLC which is located in one of those Mobility Groups?. I have not seen any note about this on the Cisco documentation I have checked.
thanks

From 7.4 onwards AP can fail over to a WLC even they are in different mobility group. So I think this set up should work without any problem.
http://www.cisco.com/en/US/docs/wireless/controller/7.4/configuration/guides/consolidated/b_cg74_CONSOLIDATED_chapter_01110011.html
http://www.cisco.com/en/US/docs/wireless/technology/hi_avail/N1_HA_Overview.html
HTH
Rasika
*** Pls rate all useful responses ****

How have two people using diff clients but same app, and have app know that

I want to have an app called XMLReader that reads an xml file and then puts it into a JTree. Then I want the person to be able to edit it. But I also want to be able to lock it (using mutex or synchronization) so if someone else on the same network opens up XMLReader, then they cannot edit it at the same time. Also, when they open their app and then Person A edits it, I want it to notify Person B's app.
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I want to have an app called XMLReader that reads an
xml file and then puts it into a JTree. Then I want
the person to be able to edit it. But I also want to
be able to lock it (using mutex or synchronization) so
if someone else on the same network opens up
XMLReader, then they cannot edit it at the same time.
Also, when they open their app and then Person A edits
it, I want it to notify Person B's app.
Does anyone know how to do this? Can it be done with
the two instances and no server?quite interesting
ok
i try
my solution is
make a interface which has the method which edit the xmlreader to the user whom u want to give the access of
editing make all the other methods which the other users can use in a different interface and give that instances to them
hope u will understand the hints if u want more explanation i will give
in this case make all the other users to register with the Xml reader to get the notifications if the Xml reader is changed by the user who can access
so it will be quite easy for u now to notify the users when the file is edited
it can be done both in single JVM and also in different JVM(client server)
regards
kamal

Calculation date deference between two rows in same column and in same table

mytable
accountno
tdate
1001
01/01/2014
1002
01/01/2014
1003
01/01/2014
1004
01/01/2014
1005
01/01/2014
1001
01/02/2014
1002
01/02/2014
1003
01/02/2014
1004
01/02/2014
1005
01/02/2014
1001
01/03/2014
1002
01/03/2014
1003
01/03/2014
1004
01/03/2014
1005
01/03/2014
1001
01/04/2014
1002
01/04/2014
1003
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1004
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1005
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This is my table. I want find out account wise date deference between first date to second date, second date to third date, third date to fourth date, fourth date to fifth date........... Could you please provide me the solution with any SQL, VB or MS access
query!

In SQL 2012/2014:
SELECT accountno, tdate,
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FROM   tbl
ORDER BY account, tdate
In SQL 2005/2008:
; WITH CTE AS (
SELECT accountno, tdate,
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FROM   tbl
SELECT a.accoounno, a.tdate, datediff(DAY, b.tdate, atdate)
FROM   CTE A
LEFT   JOIN CTE B ON b.accountno = a.accountno
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ORDER BY a.accountno, a.tdate
Erland Sommarskog, SQL Server MVP, [email protected]

Differences between Internal table with Occurs 0 and Field-Groups?

Is there really any difference between just using an internal table with an OCCURS 0 statement-- which would write the entire table to paging space-- and using field-groups? How is Field-Groups is more effective than Internal tables with occurs 0 when it comes to performance?
Could anybody please give some information regarding above question?
Thanks,
Surya.

hi,
occurs 0 means it wont create any extra memory. based on the records only the memory is allocated to internal tables at run time. but when an internal table is created it can hold data of type to which it is declared.
i.e data: itab like mara occurs 0 with header line.
can take data only from mara table
we can also do in another way as using types keyword we can declare a standard structure and create a internal table of that type. its also not that useful as we have to change the structure depending on changes for storing data.
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if helpful reward some points.
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No ping between host in the same subnet

Hello,
I have a question about the ASA and the ARP traffic in IOS 9.1.2 for ASA 5585-X and multicontext. I have discovered a curious behaviour about the traffic ARP in the my CLUSTER of ASA's. When I try to send a ping between host in the same subnet and these host have as Gateway the interface of the ASA (ASA is his router) don't works, if I mark the check to enable the comunications between host connected to the same interface this cotinues without work. The only way to get my aim (ping between host), I need to implement and Access Rule allowing the traffic IP between my origin network and destination the same network.
I think that this is some feature of ASA that filter the ARP Request but I don't understand!!! Can I help me, please?
Thanks.

Hi,
Your firewall should not see any traffic between the hosts on the same subnet.
If it is seeing traffic between the hosts then its likely that Proxy ARP on the ASA is the problem. Proxy ARP is enabled on the ASA by default on all interfaces. This essentially means that when the host connecting to the other host on the same subnet sends an ARP request the ASA might reply to that ARP request instead of the actual destination host. This is why traffic might get forwarded to the ASA instead of the actual host.
If you want to disable the Proxy ARP on some ASA interface then you can use
sysopt norpoxyarp
Where you replace the with the actual name you have given to the interface on the ASA. This disables the Proxy ARP
- Jouni

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.
Wait your feedback urgent please
Regards,

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
Dont forget to rate helpful posts

Connection between SDM client and server is broken

Dear All,
First of all this is what I have
-NW04 SPS 17
-NWDS Version: 7.0.09 Build id: 200608262203
-using VPN connection
-telnet on port 57018 is succesfull
I can login to SDM server (from NWDS and from SDM GUI) I can see the state of SDM(green light), restart it, can navigate through tabs in GUI, but every time I am trying to deploy an ear i have this error:
Deployment exception : Filetransfer failed: Error received from server: Connection between SDM client and server is broken
Inner exception was :
Filetransfer failed: Error received from server: Connection between SDM client and server is broken
I have already read a lot of topics,blogs,notes but didn't find the solution.
Can anybody help me?
Best Regards

Having same issue. Nothing helped so far... Using NWDS 7.0 SP18.
I have turned SDM tracing on and this is what I see on client side after sending first data package:
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: debug "20120224140253 0280/17 Client: finished sending string part"
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: debug "20120224140253 0280/0 Client: receive String part from Server"
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl.receiveFromServer(NetComm ..): Entering method
com.sap.bc.cts.tp.net.NetComm.receive(): Entering method
com.sap.bc.cts.tp.net.NetComm: debug "Method "receive(char[])" could not read all requested bytes. There are still 12 bytes to read"
com.sap.bc.cts.tp.net.NetComm: debug "Caught IOException during read of header bytes (-1, 43):Connection reset"
com.sap.bc.cts.tp.net.NetComm: debug " throwing IOException(net.id_000001)"
com.sap.bc.cts.tp.net.NetComm.receive(): Exiting method
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: Exiting method
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: debug "20120224140253 0281/1 Client: connection was broken"
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: Exiting method
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: debug "20120224140253 0281/0 Client: finshed sendAndReceive"
com.sap.sdm.is.cs.cmd.client.impl.CmdClientImpl: Exiting method
My connection on server is still active so I have to restart SDM server to reset and try it again.
Anyone have idea whats happening?
Edited by: skyrma on Feb 24, 2012 2:46 PM
Edited by: skyrma on Feb 24, 2012 2:47 PM
Edited by: skyrma on Feb 24, 2012 2:47 PM

Exporting and importing table using R3trans program between 2 clients

Hi,
How to export and import a table between to clients in a same system using R3trans program?
I need to copy a table from Client 020 in a system to client 040 of the same system using R3 trans. I need to know the procedure.
Can any one advice
Regards,
Suresh

This is how you do a export and import of table entries.
Export:
Open Notepad and type the following,
export
client = 020
file = 'clone.export.<sid>.<client no>.data'
select * from <client_dependent_tablename1>
select * from <client_dependent_tablename2>
select * from <client_dependent_tablenamen>
Save the file as export.ctl
Run R3trans export.ctl
and the data of these files will be stored in a file called clone.export.<sid>.data in the directory from which you have called R3trans
Import:
Open Notepad,
import
client = 040
file = clone.export.<sid>.<client no>.data
buffersync = yes
Save the file as import.ctl
Run R3trans import.ctl
Cheers!
Bidwan
Message was edited by:
Bidwan Baruah

Trouble sync between Agentry Client (SAP IM 4.0) and SMP 3.0

Hi,
I have deployed and configured the SAP Inventory Manager 4.0 mobile app on SMP 3.0 and connected to backed (SAP) which was prepared with the corresponded add-ons and all that stuff. But something happened, I have two PDTs (Motorola MC9100), when I was configure the first one, I have installed the agentry client with unencrypted mode and started the syncronization... at some point the sync process logs: This client does not support an encrypted application and the syncronization stops. As there was nothing I can do with this unencrypted client, I uninstalled this client from that device, erase all the data and install the client again but as an encrypted client. When I started the sync, was so problematic (and still is) to download all the configurations and definition even after several attemps of sync that device with the server, each time the client throws an error Communication failed (14) and sometimes it throws Communication failed - Server error (3). At the end, I configured the other device which has no problem with the client because I install the encrypted client from the start and the sync runs perfect (so the configuration and communication between SMP and Backend is OK), but with the first PDT, I think something is inconsistent because I can't make the full initial transmit yet...and I don't know how to fix it if for some reason the sync stops as my case and then that device can't sync again .. I don't know if I can reset the client or something to make it work... I thought uninstalling the client will help me but no it isn't.
Please help
Bill Froelich Stephen Streeter Mark Pe Omar Candelaria

Hi Stephen Streeter
The error normally happened when receiving a replacement of definition for the application.... the weird thing is with the other device the initial transmit works OK. One question about copying the Agentry Client Folder from the working to non-working device: If I copy this folder, Is this client tied up with the same user I executed the transmit on the "good" device?
Why on SMP if I use the same user on different devices... I only see one application connection? How can I get a different application connection for each device no matter the user I log on the application client?
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Error 2032 in communication between Flex Client and WCF

Hi All,
I'm trying to establish communication between Flex Client
and WCF service.
WCF service accepts gZip compressed data and returns gZip
compressed results.
So I used Flex ByteArray.compress() and
ByteArray.uncompress() for this purpose. However, it throws error
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The gZip compression/decompression uses MemoryStream class in
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Is there a work around for this?
Thanks,
Vishal

I read some thread in the forum, and found somebody had the similar problem with me. Just want to know how to settle this problem.
In the client/server program. Client is a JAVA program and Server a
VC++ program. The connection works, and the problem appears after some time. The Client sends a lots of requests to Serverm, the server seems receive nothing. But at the same time, the server is able to send messages to Client. The Client also can get the messages and handle them. Don't understand why there this problem and why it appears when it wants.
The client is a Win2k platorm with JDK1.3.1 and the server is also a Win2K platform with VC++ 6.0.
In the Client, using:
inputFromServer = new BufferedReader(new InputStreamReader(socket.getInputStream()));
outputToServer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
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Difference between Golden Client and Master Client

Dear,
What is the Difference between Golden Client and Master Client?
Thanx & Regards,
Mohammad Nabi,
[email protected]

Golden Client is similar or is the the same as Development Client, which should not be used for testing.
Master Client ???
Note on SAP Landscape:
Landscape is like a server system or like a layout of the servers or some may even call it the architecture of the servers viz. SAP is divided into three different landscape DEV, QAS and PROD.
- DEV would have multiple clients for ex: 190- Sandbox, 100- Golden, 180- Unit Test.
- QAS may again have multiple clients for ex: 300- Integration Test, 700 to 710 Training.
- PROD may have something like a 200 Production.
These names and numbers are the implementer's discreet on how they want it or they have been using in their previous implementations or how is the client's business scenario.
Now whatever you do in the Sandbox doesn't affect the other servers or clients. Whenever you think you are satisfied with your configuration and you think you can use it moving forward, you RE-DO it in the golden client (remember, this is a very neat and clean client and you cannot use it for rough usage). As you re-do everything that you had thought was important and usable, you get a transport request pop up upon saving every time. You save it under a transport request and give your description to it. Thus the configuration is transported to the Unit Test client (180 in this example).
You don't run any transaction or even use the SAP Easy Access screen on the 100 (golden) client. This is a configuration only client. Now upon a successful transport by the Basis guy, you have all the configuration in the Testing client, just as it is in the Golden client. The configuration remains in sync between these two clients.
But in the Testing client you can not even access SPRO (Display IMG) screen. It's a transaction only client where you perform the unit test. Upon a satisfactory unit test, you move the good configuration to the next SERVER (DEV). The incorrect or unsatisfactory configuration is corrected in Golden (may again as well be practised in the sandbox prior to Golden) and accordingly transported back to 180 (Unit Test) until the unit test affected by that particular config is satisfactory.
The Golden client remains the 'database' (if you wanna call it that) or you may rather call it the 'ultimate' reference client for all the good, complete and final configuration that is being used in the implementation.
In summary:
Landscape : is the arrangement for the servers
IDES : is purely for education purpose and is NOT INCLUDED in the landscape.
DEVELOPMENT ---> QUALITY -
> PRODUCTION
DEVELOPMENT : is where the the consultants do the customization as per the company's requirement.
QUALITY : is where the core team members and other members test the customization.
PRODUCTION : is where the live data of the company is recorded.
A request will flow from Dev->Qual->Prod and not backwards.
1. Sandbox server: In the initial stages of any implementation project, You are given a sandbox server where you do all the configuration/customization as per the companies business process.
2. Development Server: - Once the BBP gets signed off, the configuration is done is development server and saved in workbench requests, to be transported to Production server.
3. Production Server: This is the last/ most refined client where the user will work after project GO LIVE. Any changes/ new development is done is development client and the request is transported to production.
These three are landscape of any Company. They organized their office in these three way. Developer develops the program in Development server and then transport it to test server. In testing server tester check/test the program and then transport it to Production Server. Later it will deploy to client from production server.
Presentaion Server- Where SAP GUI has.
Application Server - Where SAP Installed.
Database Server - Where Database installed.
Regards,
Rajesh Banka
Reward points if helpful

Difference between native client and workstation client.

hi,
I am confused with the difference between native client and workstation client.In
some docs,it is said that native client is one which run on the same system as
the server,in other it is said running on other machine in the same domain.So
what about workstation client?So can anyone please helpme out in knowing this
difference?

subhash wrote:
hi,
I am confused with the difference between native client and workstation client.In
some docs,it is said that native client is one which run on the same system as
the server,in other it is said running on other machine in the same domain.So
what about workstation client?So can anyone please helpme out in knowing this
difference?The simple answer is that /WS clients are compiled with the -w option.
The complicated answer has to do with how the client connects to Tuxedo during the
tpinit(), and all subsequent traffic. A Tuxedo Domain (instance) has a Bulletin
Board, which is a chunk of shared memory with all kinds of information about Servers
and Clients. A Native Client, since it is running on the same machine that the
Bulletin Board exists on, can directly access the shared memory. However, /WS client
(also called a remote client) cannot access this shared memory. Instead, we have the
WSL server to make connections with, and then WSH processes that access the Bulletin
Board on behalf of the remote client.
So Native Clients run on the same machine as the Servers and where the Bulletin Board
is located, and have direct access to shared memory and other IPCs. Workstation
Clients/WS Client/Remote Clients (all the same thing) cannot access IPCs and have the
WSH do it on their behalf.
In NT, the Tuxedo IPC Service mimics Unix IPCs, and so all the above is still true.
Brian Douglass
Transaction Processing Solutions, Inc.
8555 W. Sahara
Suite 112
Las Vegas, NV 89117
Voice: 702-254-5485
Fax: 702-254-9449
e-mail: [email protected]
[briand.vcf]

Differences between client copy with sap_all and database copy

What's the difference between client copy with sap_all and doing a database copy.
I know if I do a database copy from Production to our Quality system.
I need to install the license key
restore the production library to the quality library
Initialize TMS and so on.
I know if I want to copy to our Development system. I would need to run either a remote client copy or and export/import since I cannot do a database copy because I would loose all my other clients in Development.
My question is, if the quality systems and the production systems are on the same support packs, same kernel.
What does a database copy give you (besides being faser) that a remote client copy or export/import of a client copy does.
Any differences
Thanks
Joe

Hello Joe,
If there is inconsistent Z tables between QAS and PRD, remote client copy could fail, especially when the table on PRD has longer length or more fields than the one on QAS.
Also the source client should has no-activity during the client copy, otherwise the application data could be inconsistent. For example, some material documents are copied, but not the corresponding financial documents. (For PRD client, it could be hours between the times those tables are copied.) For database restore, it is rarely an issue.
Best regards,
Victor

Multicast between wirless clients on same AP and Mobility Group

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