Ferm?n Gal?n M?rquez wrote: > Dear all, > > Due to this is my first mail in this maillist, so let me introduce myself. > My name is Ferm?n Gal?n, and I'm working at CTTC in applications related > with VLANs. > > I'm experiencing some problems using the VLAN support in Linux kernel 2.4.25 > (a bit old nowadays). > > The problem appears after using vconfig to create and remove the same VLANs > several times (for example, 'vconfig add eth0 111', then 'vconfig rem > eth0.111', then 'vconfig add eth0 111', etc.). In this situation, the > netlink kernel interface (AFAIK, a API/"protocol" that applications can use > to get information about the interfaces known by the kernel) behaves weird: > it returns information about "ghost" interfaces (interfaces that actually > don't exist). I've checked this behaviour with applications that uses > netlink (netlink.h). However, if the machine is rebooted and the VLANs > created after the boot (but not deleted and created again) the problem > dissapears and the netlink interface seems to work fine. > > I would like to know if there are known issues in that kernel version > (2.4.25), with VLAN, netlink or the combited use of both. Or maybe is a > problem of 'vconfig' command (I don't know what is exactly my vconfig > version; I've tried 'vconfig --version' but the program hasn't told me it > :)? Any information/link/reference/etc is very welcome! > > I would like also to know your opition about upgrating the kernel to a newer > version (for example, the last stable one provided by kernel.org, 2.6.14.2). > Do you think it could solve this problems? Have been significative > improvements in VLAN support since 2.4.25? What about backward compability? VLAN has had some improvements, and I am not aware of any serious bugs like you mention in the latest code. Please do try 2.4.32 or 2.6.14.2 and see if you can reproduce the problem. Thanks, Ben > > Thank you very much in advance! > > Best regards, > > -------------------- > Ferm?n Gal?n M?rquez > CTTC - Centre Tecnol?gic de Telecomunicacions de Catalunya > Parc Mediterrani de la Tecnologia, Av. del Canal Ol?mpic s/n, 08860 > Castelldefels, Spain > Room 1.02 > Tel : +34 93 645 29 12 > Fax : +34 93 645 29 01 > Email address: fermin.galan@xxxxxxx > > _______________________________________________ > Vlan mailing list > Vlan@xxxxxxxxxxxxxxx > http://www.lanforge.com/mailman/listinfo/vlan > -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com
