Out of packet buffer

[MoniB]

Hi everyone,

We had a problem today in our company. Suddenly all the switches stopped responding or the time of ping was excessive (~3000ms).

We noticed that all came from one switch, and started to disconned all the port one by one until it all went back to normal and could locate the origin. It was a PC that runs a C++ based software to monitor some machines.

The problem was "out of packet buccker. Miss count: 11784644" and the switch changed the root for a starved bpdu rx,....

We have flow control and broadcast packets limited, so we dont know how could this happen...I attach some configurations.

Software revision : YA.16.01.0006 Base MAC Addr : 6cc217-9f6200
ROM Version : YA.15.17 Serial Number : Confidential Info Erased

Up Time : 50 days Memory - Total : 67,108,864
CPU Util (%) : 8 Free : 38,395,236

IP Mgmt - Pkts Rx : 658,414,687 Packet - Total : 3020
Pkts Tx : 517,298 Buffers Free : 2707
Lowest : 0
Missed : 11,924,972

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interface 1
flow-control
rate-limit bcast in percent 25
exit

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spanning-tree 1 bpdu-protection

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I 12/20/17 16:09:44 02631 SNTP: Server not found at 195.53.100.2.
I 12/20/17 16:09:44 00414 SNTP: Unable to reach configured SNTP servers
W 12/20/17 16:19:45 00075 system: Out of pkt buffers; miss count: 11783305
I 12/20/17 16:20:06 00842 stp: CIST starved for a BPDU Rx on port 52 from
8192:6cc217-b12b00
I 12/20/17 16:20:06 00839 stp: CST Root changed from 0: 0025c3-3c6c00 to 16384:
(this device)
I 12/20/17 16:20:12 00435 ports: port 48 is Blocked by STP
I 12/20/17 16:20:13 00435 ports: port 47 is Blocked by STP
I 12/20/17 16:20:13 00076 ports: port 47 is now on-line
I 12/20/17 16:20:14 00076 ports: port 48 is now on-line

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Some help, please?

Thank you in advance.

[Richard Litchfield]

Add this too

no spanning-tree bpdu-throttle