On 12/14/2015 05:41 PM, Alfredo Cardigliano wrote:
Hi Rahul
in order to work in ZC mode you should use zc:ethX as interface name.
Alfredo
On 14 Dec 2015, at 12:56, K Rahul <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I want to test zero copy of pf-ring for receiving packets on
multicast IP's. I am using '*Intel Corporation 82579LM Gigabit
Network Connection*' NIC which is listed in pf-ring-aware NIC's. So
these are the steps I have followed:
1. mounted hugepages as follows:-
1.1. echo 1024 >
/sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages.
1.2. mkdir /mnt/huge
1.3. mount -t hugetlbfs nodev /mnt/huge
2. Installed pfring-dkms-6.0.3-dkms.noarch.rpm which placed
pf_ring.ko file.
3. Installed e1000e-zc-3.2.7.1.368-1dkms.noarch.rpm which placed a
file called e1000e_zc.ko parallel to pf_ring.ko.
4. used the following command in sequence:-
4.1. insmod pf_ring.ko transparent_mode=2
4.2. rmmod e1000e
4.3. insmod e1000e_zc.ko
5. Executed zcount with the following command "./zcount -i em1 -c 1".
Now, as far as I can understand, If we use ZC then any other
non-pfring application in unable to read the packets from the NIC.
But I am able to capture packets using wireshark on the same
interface on which zcount application is running. I am afraid that
the packet capturing is opened in pfring mode rather than zero copy
mode.
My system configuration is as follows:
OS: Centos 6.5
RAM: 8 GB
NICS: 1. Intel Corporation 82579LM Gigabit Network Connection (em1)
2. Intel Corporation 82540EM Gigabit Ethernet
Controller (eth0)
Am I doing something wrong? Can you guide me through zero copy
module, apart from the above steps? Any help will be appreciated.
Thank you
Regards,
K Rahul
_______________________________________________
Ntop-misc mailing list
[email protected] <mailto:[email protected]>
http://listgateway.unipi.it/mailman/listinfo/ntop-misc
_______________________________________________
Ntop-misc mailing list
[email protected]
http://listgateway.unipi.it/mailman/listinfo/ntop-misc
Thank you for the reply. This solved my problem.
_______________________________________________
Ntop-misc mailing list
[email protected]
http://listgateway.unipi.it/mailman/listinfo/ntop-misc
