XI--WebSphereMQ : Receiver Channel Inactive in MQ

Hi,
I am trying to Integrate XI with WebSphere MQ v5.3.
For this i have created a QueueManager, Queue, Channel (ReceiverType) in MQ. In XI (JMS Adapter- WebSphereMQ ) i have specified the neessary parameters.
Transport/NetWork Protocol : TCP/IP
JMS-Compliant : WebSphereMQ(non-JMS)
Delivery mode : Persist JMS messages in JMS Provider
Mapping of Message : Message Payload = JMS Payload
When i activate the channel, in Adapter monitering( for JMS), i could see a red traffic light.
Details : null.
When i went to WebSphereMQ, i found that the status of Receiver Channel is Inactive.
I want to know:
1)While creating my Queue manager i did not create a listener for TCP/IP. Should i create my QueueManager with TCP/IP Listener.
2)How can i make my Receiver Channel Active in WebSphereMQ. Tried to right Click on the channel (say start). But it dosen't work.
3)What is the parameter that i need to specify for Character SetID (CCSID) in XI(JMS Adapter- WebspherMQ).
4)Is there anything more on WebsphereMQ side i need to setup?
Regards,
Siva Maranani.

I have read the document Keeping Channels Up and Running (WebSphere software) and I have some questions.
http://www-1.ibm.com/support/docview.wss?rs=203&uid=swg24006699&loc=en_US&cs=utf-8&lang=en
Our setup:
QueueManager on iSeries (5724B41   V5R3M0      WebSphere MQ for iSeries )
We use SAP XI as MQ client. (SunOS) WebSphere classes for JMS (com.ibm.mq.jms.MQQueueConnectionFactory)
MQI channel of type server-connection channel.
Transport service TCP/IP.
Problem description:
Within SAP XI we use an Adapter type called JMS. This adapter type supports 2 types of connections:
A) Sender
Transport protocol :     WebSphereMQ (non-JMS)
B) Receiver
Transport protocol :     WebSphereMQ (MQSeries) JMSprovider
On our iSeries we have 1 QueueManager with only 1 channel (*SRVCN = server-connection) which contains several queue's, queue's of type Sender (defined in SAP XI) and queue's of type Receiver (defined in SAP XI).
Note:      Keywords like sender and receiver must be seen from SAP XI as point of view.
queue's of type Sender ==> data is sent from iSeries towards SAP XI.
queue's of type Receiver ==> data is sent from SAP XI towards iSeries.
If we look with NETSTAT command (on iSeries), we see on the ports connected to queue's of type Sender, each 5 seconds network activity. It looks that SAP XI polls every 5 seconds to see if a message is present in the corresponding queue. The result is that that connection is never longer idle than 5 seconds.
For the queue's (ports) of the corresponding Receiver connections, we see that the connection remains idle (if no data is transferred) for 4 hours. After 4 hours, the connection is broken which results is error:
Job AMQRMPPA on AS/400 shows me message AMQ9209
Message . . . . : Connection to host 'xxxxxxxx (xx.xx.xx.xx)' closed.
Cause . . . . . : An error occurred receiving data from 'xxxxxxxx
(xx.xx.xx.xx)' over TCP/IP. The connection to the remote host has
unexpectedly terminated.
Recovery . . . : Tell the systems administrator.
We expect that the firewall give a session-timeout. We can not change that !!!
Questions:
Is there a way (settings) that we can force communication over the "receiver type" connection? I believe the channel remains active. TCP keep-alive and heartbeats are valid for channels. In the document mentioned above I read that values for heartbeats are specified "on both ends of the channel" and needs to be negotiated.
However, I am not able to specify such a value at SAP XI site, at least I don't know how?
Is there ANY documentation which described the use of the SAP XI in combination with MqSeries (like the intercommunication PDF of WebSphere MQ)?
Is there any documentation regarding additional parameters?
Rgds,
Wilbert Karremans
<a href="http://www-1.ibm.com/support/docview.wss?rs=203&uid=swg24006699&loc=en_US&cs=utf-8&lang=en">Keeping Channels Up and Running (WebSphere software)</a>

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