# GGSN CSG Statistics Contd

## Navigation

1. Right click the device, and select Monitor. The Monitor Device dialog box appears.

2. Select GGSN CSG Statistics Contd from the Category list.

The following information appears:

> QS Quota Return Messages (cGgsnSACsgQuotaReturnReqs)

> CSG Quota Push Responses (cGgsnSACsgQuotaPushResps)

> CSG Service Stop Messages (cGgsnSACsgServiceStopMsgs)

> CSG Service Stop Messages Received (cGgsnSACsgServiceStopReqs)

> GGSN Quota Push Messages (cGgsnSACsgQuotaPushMsgs)

> CSG Quota Push Messages (cGgsnSACsgQuotaPushRsps)

> CSG GTP Ack (cGgsnSACsgGtpAcks)

### QS Quota Return Messages (cGgsnSACsgQuotaReturnReqs)

Indicates the number of quota return requests by the quota server. The quota server may send this message to cause the Content Service Gateway (CSG) to return unused quota for the target service. The quota server sends the quota return request when the validity timer expires; this in turn triggers the Credit Control Request (CCR) update. The Diameter Credit Control Application (DCCA) server grants quota in response to a quota return request.

### CSG Quota Push Responses (cGgsnSACsgQuotaPushResps)

Indicates the number of quota push responses by the Content Service Gateway. The purpose of quota push response is mainly to convey the session ID to the quota server, so that the quota server can save it for subsequent transactions that it originates.

### CSG Service Stop Messages (cGgsnSACsgServiceStopMsgs)

Indicates the number of service stop messages by the Content Service Gateway. The following list summarizes the situations under which a user is disconnected from the service:

- When the Content Service Gateway removes the user by a RADIUS Accounting (stop) message, the Content Service Gateway sends the service stop message for each service for which user had an active session.
- When the idle timer on the Content Service Gateway expires, it sends service stop for the category.
- When the quota server sends service stop request message, the Content Service Gateway reports the usage and remaining quota.

### CSG Service Stop Messages Received (cGgsnSACsgServiceStopReqs)

Indicates the number of service stop messages received by the Content Service Gateway.

### GGSN Quota Push Messages (cGgsnSACsgQuotaPushMsgs)

Indicates the number of quota push messages sent by GGSN. GGSN sends the quota push message in the following conditions:

- When the DCCA server returns non-zero quota.
- When category is blacklisted or unknown.
- When retransmit (Tx) timer, associated with the DCCA client, expires.
- When credit control is not required.

### CSG Quota Push Messages (cGgsnSACsgQuotaPushRsps)

Indicates the number of quota push responses by the Content Service Gateway. The Content Service Gateway responds to the quota push with the quota push response. The cause information element in the GTP header indicates success or failure. The category whose quota is pushed must be statically configured on the Content Service Gateway. If it is not configured, the Content Service Gateway sends reject cause 255 in its quota push response.

### CSG GTP Ack (cGgsnSACsgGtpAcks)

Indicates the number of GTP level acknowledgements by the Content Service Gateway for some requests from the quota server (e.g., quota return request and service stop request). The acknowledgements do not contain the user index and service ID TLVs, which are helpful for category lookup. However, they contain the sequence number in the GTP header that matches with that of the corresponding requests.