On 01/06/12 11:30, Wolfgang Denk wrote: > Hello, > > I know that this is not exactly related to Bacula, but maybe some > other user has seen similar behaviour. > > I have problems when trying to enable support for jumbo frames on the > network. All NICs and switches are supposed to support that, however > on some systems the communication of the FD to the SD stops as soon as > I change on the FD the MTU from the default of 1500 to a higher value > (9000). The MTU on the DIR and SD can be set to 9000 without visible > impact on bacula. > > Funny thing is that this happens not on all systems. > > Does this ring a bell somewhere? > > Thanks in advance. > > Best regards, > > Wolfgang Denk >
Hi Wolfgang I have only seen issues like this when some device along the path is not properly supporting jumbo frames. Sometimes a device will require a reboot to make the jumbo frames setting take affect. I have seen this with DELL switches, for instance. A quick (non-bacula) way to test is to ssh from one machine to the other and run a find / command or something that will generate similar amount of output. If jumbo frames are not enabled on the whole path, then this output will appear to "just hang" and you will no longer have connectivity to the system. It is also possible that some of the NICs in your servers are not properly supporting the higher MTU that you are setting. Hope this helps. -- Bill Arlofski Reverse Polarity, LLC ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
