Jeremy,
>From the look of things (using a quick snoop), our IPMP tests by sending
>packets
directly to the default router, using it's own IP & MAC address. I also don't
see anything in the mpathd config file that would indicate we did something
special to configure this behavior. We have configured both our ceX interface
addresses to be -deprecated and use a 3d address (that floats) to communicate
with the hosts; but I doubt that affects the specific behavior you're seeing.
Matt
===========================================================
"If they are the pillars of our community,
We better keep a sharp eye on the roof."
===========================================================
>
>From: Jeremy Charles <jchar...@epic.com>
>To: LOPSA Tech List <tech@lopsa.org>
>Sent: Wed, September 15, 2010 11:50:45 AM
>Subject: [lopsa-tech] Solaris IP multipath behavior
>
>
>One of our server admins is telling me that his Solaris server's IP
>multipathing
>software is checking connectivity to the default gateway by sending ICMP echo
>requests addressed to the following:
>
>MAC address ff:ff:ff:ff:ff:ff
>IP address 0.0.0.0
>
>He's telling me that the Solaris host is expecting to see the default gateway
>respond to that.
>
>Does anyone else view this as one or more of the following:
>1) The actual expected behavior of Solaris IP multipathing
>2) Something isn't completely configured
>3) Non-intelligent design
>
>My google-fu is coming up empty on trying to either substantiate this as the
>expected behavior or provide troubleshooting help.
>
>(The operational problem is that the Solaris host is in a subnet where the
>default gateway is a Cisco Firewall Services Module, which doesn't respond to
>the above. There are two Solaris hosts in that subnet and they DO respond to
>those pings. Unfortunately, when one Solaris host goes down, the other one
>stops seeing the ping responses, so it takes down its services too.)
>
>
>===
>Jeremy Charles
>Epic - Computer and Technology Services Division
>jchar...@epic.com
>
>Phone: 608-271-9000 Fax: 608-271-7237
>
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