On 17/11/2012 17:08, Lucy Pelzer wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1Hi List, I am in charge for a big network infrastructure and at the moment we evaluate solutions for our nagios monitoring with configuration via monarch. I really would like to create the new solution with nagios and puppet. There is only one big problem. In our infrastructure there are a lot of switches connected together like this: ------------ | switch-1 | ------------ / \ / \ / \ ------------ ------------ | switch-2 |-----| switch-3 | ------------ ------------ | | | | ------------ ------------ | switch-5 |-----| switch-4 | ------------ ------------
Hi Lucy,Although you have redundant physical interconnects for your switches, Spanning Tree, or Rapid Spanning Tree or even Multiple Spanning Tree protocols are taking effect and (probably) setting switch-1 as the Root with the other switches set to a higher spanning tree priority value - in any case, at layer two, during normal operation you don't have multiple active parents in the layer-2 infrastructure.
While you have redundancy, physically for your infrastructure, you are only using those links (for each VLAN at least), in a non-redundant way.
Setup your Nagios child / parent relationships as per spanning tree has worked out how it should be when everything is up, add some monitoring for spanning-tree within Nagios, that way everything will work, and you'll always be informed when something is wrong.
Thanks Giles
All the time I try to configure this switch connections in nagios with more than one parent, where the hosts are at the same time parent and child, I get the following error: ERROR: The host 'switch-2' is part of a circular parent/child chain! ... I know by now that this is because nagios has to be hierarchically, but I do not understand why. Maybe somebody could tell me exactly why I can’t configure this in nagios or better could tell me how I can do it. I only found the explanation that this could conduct a deadlock. Maybe I am wrong, but is this not a likely network infrastructure? At last it is no problem to build something like this with STP running in your network. Great Thanks in advanced Lucy -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJQp8R0AAoJEBSbfrVvipee/GIIAI9fOkZzDr04z2m85YAnPg3M Bc3w6b622H88RBHaUWnDBRtAzvQ8JNKncj7BlDrUuRBEIMH1K7Ze8ec0NRSt6hPu /U0j92nalP16J0DtDK5jMgwQS2TM+TqVKODoj8jjYKEtgJLxok0RGxVurAj5vclf rTDMokhhKoeu10KVseaQW/U42Vr92eqB2XrafdONaguTZ8IQ+dbul8jOCYxIKj+/ b961wWQyKijQ/LqHhoHh4u3dDGMmqlOJULQ/uX3+X29yhXa72gwYzdn4JpNJpiEV B96kJ8mBkEpYLtkxPx1C3z4X4/hC/zfvf+N14JJFWR8ZVcGDhRrGK94pLj+vz1c= =99+0 -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
-- Regards, Giles Coochey, CCNA, CCNAS NetSecSpec Ltd +44 (0) 7983 877438 http://www.coochey.net http://www.netsecspec.co.uk gi...@coochey.net
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------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov
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