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Operating Systems Linux Red Hat Netdump over bonded interface ? Post 302336530 by shriyer on Wednesday 22nd of July 2009 09:55:37 AM
Old 07-22-2009
Netdump over bonded interface ?

Netdump over bonded interface ?
Hey there,..
I have heard from admins, that netdump usually fails over a bonded network interface.

I have written a multi-OS checkdump script , which checks if the respective crashdump utility on corresponding OS is correctly configured, space is available, etc etc etc.

For the netdump check, I wanted to add in a check to see if netdump is using bonded interface . How do I do that ? I can easily find out if the system has bonding enabled or if bond0 is up or down .
But I want to know if Netdump is going to use this bonded interface to send out the dump, or the usual interface ?

/etc/sysconfig/netdump doesnt give much of an idea. Does LOCALPORT setting have something to do with it ? It defaults to 6666.
I have minimal understanding about the networking side of this problem, could some one please tell me :
1. How do I find out which network interface (outgoing) netdump is currently configured to use ? How to check if its bonded or not ??

2. I also wanted to do a ethtool $NIC to check if the ethernet link is
down or up, so this brings back to finding out which network interface is used by netdump , eth0 , eth1 , bond0 ??? How can I find this out.

Thanks,
Shrikant
 

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BOND2TEAM(1)						  Bonding to Team conversion tool					      BOND2TEAM(1)

NAME
bond2team -- Converts bonding configuration to team SYNOPSIS
bond2team [options] DESCRIPTION
bond2team is a tool to convert bonding options to team trying as much as possible to keep the original functionality. The resulting files are saved in a temporary directory using ifcfg style by default. In the case of converting an ifcfg file, it translates the bonding options to team, preserving all other options. In that case, it converts the respective slave ifcfg files to team port, pre- serving all their other options too. In case of converting from given bonding options in the command line, the tool can use the specified ports as team ports. OPTIONS
--master <interface> Specify the interface name or ifcfg file to convert. If the interface name is specified, the tool will look at /etc/sysconfig/network-scripts/ for the respective ifcfg file. --rename <interface> This is a convenient option to replace the original interface name by the specified name. For instance, if --master specifies bond0, it is possible to use --rename team0 to change the final interface name to team0. --ifcfg Set the output format to ifcfg config style. [default] --json Set the output format to JSON style. See teamd.conf(5) for further details. --bonding_opts '<bonding options>' Specify the bonding options to be converted instead of reading them from the ifcfg file. --port <interface> Set the specified interface as a team port. --configdir <directory> Change the ifcfg configuration path from /etc/sysconfig/network-scripts to the specified <directory>. --outputdir <directory> Set the output directory to <directory>. --stdout Print the result to the screen instead of writing to files. --debug Increase the debugging level. --quiet Disallow any messages to be printed to console. --version Print tool version to console and exit. --help Print help text to console and exit. --examples Print common usage examples to console and exit. EXAMPLES
To convert the current 'bond0' ifcfg configuration to team ifcfg: # bond2team --master bond0 To convert the current 'bond0' ifcfg configuration to team ifcfg renaming the interface name to 'team0'. Caution : firewall rules, alias interfaces, etc., that might be tied to the original interface name can break after the renaming because the tool will only change the ifcfg file, nothing else. # bond2team --master bond0 --rename team0 To convert given bonding parameters with ports without any ifcfg: # bond2team --bonding_opts 'mode=1 miimon=500 primary=eth1 primary_reselect=0' --port eth1 --port eth2 --port eth3 --port eth4 For more examples, see the option --examples. CAVEATS
The tool will not convert any other configuration which might be tied to the current setup. For instance, firewall rules, alias interfaces, bridges, and so on. AUTHOR
Flavio Leitner is the original author of the tool. Jiri Pirko is the original author and current maintainer of libteam. SEE ALSO
teamd(8), teamdctl(8), teamd.conf(5), teamnl(8) libteam 2013-07-18 BOND2TEAM(1)
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