MTP2:States

Screenshot showing MTP2 status options

Screenshot showing extended MTP2 status options (1/3)

Screenshot showing extended MTP2 status options (2/3)

Screenshot showing extended MTP2 status options (3/3)

States information indicates the current state of the MTP2 Link. This information can be used to determine the quality of service. Status information can be gathered at any time by the host. Collection of status information does not change any information examined.

Congestion Status

The MTP2 'Local Congestion Status' parameter indicates the current flow control state from the host. The following values are allowed:

Local Congestion Status	Description
No Change	Used to leave the setting as it is during 'SET' operation.
On	Local congestion activated
Off	Local congestion deactivated

Data Link Status

The 'Data Link Status' parameter indicates the current data link. The following values are allowed:

Data Link Status	Description
Enabled	Data link is enabled
Disabled	Data link is disabled

Alarm Generation Status

The 'Alarm Generation State' parameter indicates the current alarm generation state. The following values are allowed:

Alarm Generation Status	Description
Activated	Alarms are reported to the host
Disactivated	Alarms are not reported to the host

Local Processor Outage Status

The 'Local Processor Outage State' parameter indicates the current local processor outage condition. The following values are allowed:

Local Processor Outage Status	Description
Activated	Local processor is getting short on CPU
Disactivated	Local processor has recovered from "no more CPU" condition

Other parameters

The following additional parameters are visible by clicking on the 'Extended status' checkbox as in the second, third and fourth screenshots on the right.

• The 'Up' flag indicates if the current state of a MTP2 link is up or down. Possible values are 'True' or 'False'
• The 'Aligned' flag indicates if the link is aligned or not. Possible values are 'True' or 'False'
• The 'Remote processor outage' flag indicates if the remote end processor outage is started. Possible values are 'True' or 'False'
• The 'Flow control' flag indicates a local congestion from the MTP2 link. Possible values are 'True' or 'False'
• The 'Remote congested' flag indicates a remote congestion. Possible values are 'True' or 'False'
• The 'Number outstanding frame' parameter indicates the number of outstanding frames in MTP layer 1
• The 'Number dropped frame' parameter indicates the number of frames dropped by the MTP layer 1
• The 'Current forward sequence' parameter indicates the current forward sequence number
• The 'Current backward sequence' parameter indicates the current backward sequence number
• The 'Retransmission count' parameter indicates the retransmission count of MSUs
• The 'Transmit queue size' parameter indicates the current transmit queue size