LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 07-27-2013, 11:57 AM   #1
khpr0502
LQ Newbie
 
Registered: Jun 2011
Posts: 6

Rep: Reputation: Disabled
Multicast failed for bond0 and bond2 using address 230.0.1.0:42000


Hi ,

I have an issue with multicast with my oracle nodes.
Multicast test fails for bond0 and bond2 on 230.0.1.0.

Checked with oracle dba, required oracle patch is applied.

Steps that I performed to troubleshoot:

1) bond2 was down so restated bond2
2)restart network
3) disable ipv6
4) disable and enable multicast for the ethernet
# ifconfig bond0 -multicast
# ifconfig bond0 multicast
--Did same for bond2
5)reboot

Still multicast test is failing.

Nodes are blade servers with RHEL 5.5 .Nodes are on different enclosure.

Network team can see the presence on switch when I ran multicast test.

What am i missing here. Any help is appreciated.


Thanks

Newbie
 
Old 07-28-2013, 12:55 PM   #2
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,458

Rep: Reputation: Disabled
Quote:
Originally Posted by khpr0502 View Post
3) disable ipv6
4) disable and enable multicast for the ethernet
# ifconfig bond0 -multicast
# ifconfig bond0 multicast
--Did same for bond2
5)reboot
Wouldn't the reboot effectively cancel the changes you just made? Unless you also stored these changes in some config file or startup script, that is?
 
Old 07-28-2013, 03:00 PM   #3
khpr0502
LQ Newbie
 
Registered: Jun 2011
Posts: 6

Original Poster
Rep: Reputation: Disabled
Hi,

I made configuration change on /etc/modprobe.conf and /etc/sysconfig/network to disable ipv6.

vi /etc/sysconfig/network
NETWORKING_IPV6=no

vi /etc/modprobe.conf

options ipv6 disable=1


# chkconfig ip6tables off



Newbie
 
Old 07-28-2013, 03:22 PM   #4
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,458

Rep: Reputation: Disabled
I don't see how disabling IPv6 could help with IPv4 multicast issues, or indeed any IPv4-related issues, but OK; you tried it and it didn't work.

Have you checked whether the problem is on the sending or the receiving end? Run this tcpdump command in a console on both nodes:
Code:
tcpdump -v -i interface host 230.0.1.0
Replace interface with the correct interface name (bond0, bond2 or whatever). Then start the multicast test and see what happens.

Which Oracle version/patchset are you running?

Have you seen this blog post?
 
Old 07-29-2013, 09:45 AM   #5
khpr0502
LQ Newbie
 
Registered: Jun 2011
Posts: 6

Original Poster
Rep: Reputation: Disabled
Hi,

Oracle version 11.2.0.2
and Patch 9974223

When I ran tcpdump, I did not see much.

But I did note that there appears to be some host prohibited messages:

74925 11:25:33.675030 <IP> <IP> UDP 84 Source port: 58800 Destination port: 33447
74926 11:25:33.675031 <IP> <IP> ICMP 112 Destination unreachable (Port unreachable)


Multicast was working fine before, but after server reboot, it did not work.
 
Old 07-29-2013, 10:12 AM   #6
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,458

Rep: Reputation: Disabled
Quote:
Originally Posted by khpr0502 View Post
Multicast was working fine before, but after server reboot, it did not work.
That narrows it down considerably. The questions then, are:
  • What was done prior to the reboot? Were any components upgraded?
  • Which settings were changed (and potentially not saved) between the last two reboots, that the final reboot may have undone?
If the reboot was performed to complete an update, roll back that update. If settings may have been lost, go through changelogs and documentation to figure out what the most recent changes were.
 
Old 07-30-2013, 12:30 PM   #7
khpr0502
LQ Newbie
 
Registered: Jun 2011
Posts: 6

Original Poster
Rep: Reputation: Disabled
Hi,

There was ILO Formware upgrade. Firmware upgrade cannot be revert back. So, I am stuck.

Thanks
 
Old 07-30-2013, 12:57 PM   #8
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,458

Rep: Reputation: Disabled
An iLO firmware upgrade can not affect the ability of the OS or an application to send or receive multicast traffic. iLO doesn't even affect the regular NICs, as it uses a dedicated connection.

The firmware upgrade is a red herring. Something else is causing the problems you're experiencing.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
bonding with bond0, but VMware Workstation does not see bond0 dimm0k Linux - Virtualization and Cloud 1 07-14-2011 09:22 PM
Getting Multicast Address from recvfrom tara Programming 1 03-04-2010 11:44 AM
How to ping to multicast address ? vino87 Linux - Newbie 1 06-26-2009 08:46 AM
Creating Multicast address makam.sreekanth Linux - Newbie 0 01-19-2009 06:26 AM
setting multicast broadcast address node047 Linux - Networking 0 04-05-2005 07:02 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 11:14 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration