Dear Roman If I don't use trunk over linux bridges(packets without vlan tag) then I can ping more than 1500bytes(MTU).the problem is vlan tagged packets. r u sure about jumbo frames that solve this problem ? --------------------------------- Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osdl.org/pipermail/bridge/attachments/20061125/f227b99e/attachment.htm