[CentOS] tcpdump?

[John R Pierce]

Les Mikesell wrote:
> Did the latest Centos4.x kernel break the ability to tcpdump with any 
> amount of traffic?  Machines that used to be able to keep up now show 
> a few packets and stop - if you hit ^C they take a  minute or so to do 
> anything, then show something like:
>
> 54 packets captured
> 18188 packets received by filter
> 18070 packets dropped by kernel
>
> Before recent updates I almost never saw packets 'dropped by kernel'.
>

odd, not seeing that here.

1547 packets captured
1547 packets received by filter
0 packets dropped by kernel


# uname -a
Linux svfis-blade03.XXXXXX.com 2.6.9-42.0.10.ELsmp #1 SMP Tue Feb 27 
10:11:19 EST 2007 i686 i686 i386 GNU/Linux


System is a IBM HS20 blade w/ 2 x xeon 2.8ghz, Intel E7520 chipset,

05:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704S 
Gigabit Ethernet (rev 10)
05:01.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704S 
Gigabit Ethernet (rev 10)