According to Jaye Mathisen : :-) :-) :-) :-) Can I combine 2 100mbit pipes from a 540 or 630 to something like a :-) Foundry switch to make a 200mbit connection? :-) :-) Can't get gigabit for a 540, but need a bit more oomph than 100... :-)
Netapp allows you to do this with a virtual interface.
I received the following from a netapp support person just today -
Virtual interfaces are the process of trunking multiple interfaces together into one single IP address. Virtual Interfaces is also referred to as trunking or Etherchannel.
VI is accomplished by using the vif command to assign multiple unconfigured network interfaces into a single "vif".
The "vif create e4a e4b e4c efd" command will create a vif that encompasses all 4 of the network interfaces. This simply creates the vif. Then you must ifconfig the vif# just like you would any other network interface. The new vif# is now your network interface and not e4a e4b e4c and e4d they all make up the one vif.
Your switch must be configured for Trunking/Etherchannle in order to utilize a VIF. Please check out your switch documentation for proper switch configuration
With this configuration your system appears to the outside world to have a single IP address. The switch and filler will then load balance across all network interfaces in your vif# automatically and also provide fault detection in the event of an interface failure. The fault detection will re-direct all traffic to the 3 remaining interfaces, and will recognize when the failed interface comes back on-line and start using it again.
You need an IP address and DNS Address for each vif# that you create but not for the individual network interface ports.
Regards
Steveb