| Message Code | PIX-3-319003 |
| Severity | Error |
| Description | Arp update for IP address address to NPn failed. |
| Explanation | When an ARP entry has to be updated, a message is sent to the network processor (NP) in order to update the internal ARP table. If the module is experiencing high utilization of memory or if the internal table is full, the message to the NP may be rejected and this message generated. |
| User Action | Verify if the ARP table is full. If it is not full, check the load of the module with respect to the CPU utilization and connections per second. If CPU utilization is high and/or there is a large number of connections per second, normal operations will resume when the load returns to normal. |
| Reference Links |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.