Smarts IP: Incoming SNMP request (number bytes) on interface <name> exceeds data buffer size, discarding this SNMP request; SNMP request packets from Smarts exceeding 512 bytes

Products

• VMware Smart Assurance

Issue/Introduction

Symptoms:


Smarts IP SNMP request packets dropped by device 

Below are the errors seen in ASA syslog

%PIX-3-212005: incoming SNMP request (number bytes) on interface int_name exceeds data buffer size, discarding this SNMP request.

This message reports that the length of the incoming SNMP request, destined for the ASA device, exceeds the size of the internal data buffer (512 bytes).

Environment

VMware Smart Assurance - SMARTS

Cause

This is a known bug for Cisco ASA/FWSM devices. See:

https://tools.cisco.com/bugsearch/bug/CSCtj88629

Symptom:

LMS sends more than 512 SNMP requests to the FWSM, so it rejects the requests.

Workaround:
None.

Resolution

It is possible to adjust Smarts SNMP Poller packet size, but this change will impact SMARTS performance as change will be applicable to all devices in domain, there is no way to set this parameter per device type or specific SysOID(s).

If you experience symptoms described in this article please open a new SR with EMC Smarts Support and quote this knowledgebase article

Additional Information

Please note this change will impact SMARTS performance as change will be applicable to all devices in domain, there is no way to set this parameter per device type or specific SysOID(s).