One purpose of multiple default routes I believe is for use with IPMP failure detection.
When mpathd decides that it hasn't had an ICMP echo response from a default router within the specified FAILURE_DETECTION_TIME (/etc/default/mpathd) it attempts to failover within the multipathing group. Now if you have two (or more) default gateways defined then the loss of one will not cause a multipathing failover as I understand it. Multipath failure detection can/is also performed on a link basis (but you'll want to ensure you're using autonegotiation on your NIC and switch for this to be reliable). This message posted from opensolaris.org _______________________________________________ networking-discuss mailing list [email protected]
