Netbackup Appliance 5230 - 2.6.0.1 - Dropped Packets

[Anderson_Alme1]

Run a command tcpdump on appliance about 20 seconds

842 packets captured

129197 packets received by filter

115211 packets dropped by kernel

very, very packets droppeds

any idea?

[SymTerry]

What was the exact tcpdump comand you ran. I don't think tcpdump is giving you useable information. If your looking for real numbers, try ethtool -S <eth#> and netstat -s, as this will give more acurate results. 

Also why are you running the command? are you having network or performance issues? We need more information please.

[Anderson_Alme1]

Hello Terry, 

We use tcpdump -i eth4 src host 10.10.1.102 command for about 40 seconds. 
We will tests with the parameters passed by you. 

Yes we have a network problem, where we have a structure in which the customer, backup Jobs no more than 10Mb transfer rate.

Any idea of testing we can do?

[Mark_Solutions]

That sounds very much like a switch issue - try new cables and different port in the switch - also check the mode of the port being used on the switch to ensure it is using fixed speed and full duplex.