Steve, Kernel version is 2.6.11.4-430.10-bigsmp
Here is the igmp kernel configs. ================================ net.ipv4.conf.pci0.force_igmp_version = 0 net.ipv4.conf.eth5.force_igmp_version = 0 net.ipv4.conf.eth4.force_igmp_version = 0 net.ipv4.conf.eth3.force_igmp_version = 0 net.ipv4.conf.eth2.force_igmp_version = 0 net.ipv4.conf.eth1.force_igmp_version = 0 net.ipv4.conf.eth0.force_igmp_version = 0 net.ipv4.conf.lo.force_igmp_version = 0 net.ipv4.conf.default.force_igmp_version = 0 net.ipv4.conf.all.force_igmp_version = 0 net.ipv4.igmp_max_msf = 10 net.ipv4.igmp_max_memberships = 1 Its custom compiled, source is from SuSe Linux with some patches on top of it. -Sajeev -----Original Message----- From: Steven Dake [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 25, 2008 7:01 PM To: Sajeev Vallat Cc: [EMAIL PROTECTED] Subject: RE: [Openais] openais multicast address (node discovery issue) Crossover cable should work just fine. Which kernel are you using? Is it custom compiled? Make sure your kernel has IGMP multicast set in its kernel configuration. On Tue, 2008-03-25 at 19:02 -0400, Sajeev Vallat wrote: > Hi Steve, > > We have a cross over cable connecting both the machine (so no switches between the boxes). We dont have any firewall / iptable rules which prevents packets on interface. What we see is that ARP packets with mulitcast ip-address (226.94.1.1) on the wire, on both the machines. > > Sure if we figure out the issue I would let you know. > > Regards, > -Sajeev > > > -----Original Message----- > From: Steven Dake [mailto:[EMAIL PROTECTED] > Sent: Tue 3/25/2008 5:27 PM > To: Sajeev Vallat > Cc: [EMAIL PROTECTED] > Subject: Re: [Openais] openais multicast address (node discovery issue) > > Sajeev, > > My guess is your switch is not configured for multicasting. This is the > commonly shipped configuration for high end Cisco switches and some > other brands. I suggest working with your switch vendor to determine > the proper settings, but here is some information you might find useful: > > Which brand and model of switch do you have? > http://www.openais.org/doku.php?id=faq:cisco_switches > > Another common problem is that your operating system has a firewall > installed. You could turn this off or enable the proper rules for the > port and udp multicast. > > If you determine the exact issue please let us know what it was and the > resolution so we can update our faqs. > > Regards > -steve > > On Tue, 2008-03-25 at 14:47 -0400, Sajeev Vallat wrote: > > We are observing a problem where the AISEXEC nodes sending data on the > > multicast address is not seen on the wire. Sniffing on the network > > reveals that ARP requests are send for the multicast address, to which > > none of the machines with AISEXEC nodes respond. Is this desired ? > > > > > > > > We also did "strace" on aisexec process, observed that process is > > sending data to multicast address. > > > > > > > > Has anyone seen this behavior before ? > > > > > > > > Thanks > > > > -Sajeev > > > > > > _______________________________________________ > > Openais mailing list > > [email protected] > > https://lists.linux-foundation.org/mailman/listinfo/openais > > _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
