Solaris IP Multi Path. Ethernet/IP layer redundancy w/o support from switch side.
Can run as active/standby (more compatible, only single IP presented to outside world), or active/active config (outbound traffic can go over both NIC using 2 IPs, inbound will depends on the IP the client use to send data back, so typically only 1 NIC).
hostname.ce0 (main active interface) ::
oaprod1-ce0 netmask + broadcast + deprecated -failover \
group oaprod_ipmp up \
addif oaprod1 netmask + broadcast + up
hostname.ce2 (active-standby config) ::
oaprod1-ce2 netmask + broadcast + deprecated -failover \
standby group oaprod_ipmp up
^^^^^^^
hostname.ce2 (active-active config) ::
oaprod1-ce2 netmask + broadcast + deprecated -failover \
group oaprod_ipmp up \
addif oaprod-nic2 netmask + broadcast + up
/etc/inet/hosts ::
172.27.3.71 oaprod1
172.27.3.72 oaprod1-ce0
172.27.3.73 oaprod1-ce2
172.27.3.74 oaprod2-nic2
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