1. Alarms and KPIs
  2. Alarms and Events
  3. SS7/Sigtran (19200-19299)
  4. 19252 - PDU Buffer Pool Utilization

3.5.33 19252 - PDU Buffer Pool Utilization

Alarm Group:
SS7
Description:
The percent utilization of the MP's PDU buffer pool is approaching its maximum capacity. If this problem persists and the pool reaches 100% utilization, all new ingress messages will be discarded.
Severity:
Minor, Major, Critical as shown in the GUI under Alarms & Events, and then View Active.
Instance:
<PoolName> Values: ANSI, ITUI, ITUN
HA Score:
Normal
Auto Clear Seconds:
This alarm does not autoclear.
OID:
awpss7PduBufferPoolUtilNotify

Recovery:

  1. If one or more MPs in a server site have failed, the traffic will be distributed among the remaining MPs in the server site. You can monitor MP server status from Status & Manage, and then Server.
  2. The misconfiguration of STP routing may result in too much traffic being distributed to the MP. You can monitor the ingress traffic rate of each MP from Status & Manage, and then KPIs. Each MP in the server site should be receiving approximately the same ingress transaction per second.
  3. There may be an insufficient number of MPs configured to handle the network traffic load. You can monitor the ingress traffic rate of each MP from Status & Manage, and then KPIs. If all MPs are in a congestion state, then the offered load to the server site is exceeding its capacity.
  4. A software defect may exist resulting in PDU buffers not being de-allocated to the pool when a PDU is successfully transmitted into the network. This alarm should not normally occur when no other congestion alarms are asserted. Examine the alarm log from Alarms & Events, and then View Active.
  5. If the problem persists, it is recommended to contact My Oracle Support if further assistance is needed.