Hi, In the linux kernel socket lecture yesterday, I told that some recent distributions do **not** have the UDP lost packet statistics of RcvbufErrors, SndbufErrors , since these statistics are (relatively) new additions to the kernel.
There were some doubts about it and we (unfortunately) did not have Internet yesterday in the lecture room. So , I just want to let you know that I verified what I told you yesterday. Here are results on 4 machines: Centos5.2, RHE4, Fedora 7 and Fedora 4. Only the Fedora 7 had these UDP metrics (RcvbufErrors , SndbufErrors), as you can see below. (Please also notice that RHEL or CentOS kernels are older than Fedora kernels.) I checked the output of: cat /proc/net/snmp | grep -i udp in different servers: on these servers. ==== CentOS release 5.2 (Final) (2.6.18-92.el5) Udp: InDatagrams NoPorts InErrors OutDatagrams ... ==== ==== Red Hat Enterprise Linux ES release 4 (Nahant) (2.6.9-5.ELsmp) Udp: InDatagrams NoPorts InErrors OutDatagrams ===== === Fedora release 7 (Moonshine) (2.6.21-1.3194.fc7) Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors === but in Fedora Core release 4 (Stentz) (2.6.11-1.1369_FC4) , we don't have it: Udp: InDatagrams NoPorts InErrors OutDatagrams I wonder what the situation is in Fedora 6. (but don't have access to such a machine). Regards, Rami Rosen _______________________________________________ Haifux mailing list [email protected] http://hamakor.org.il/cgi-bin/mailman/listinfo/haifux
