topic Several bond interfaces or aliases? in Operating System - Linux

Several bond interfaces or aliases?

Vitaly Karasik_1 — Mon, 30 Jul 2007 03:43:01 GMT

I need assign several IP to the bonded network interface. AFAIK, it can be done in two ways - or by creating bondXX interfaces or by assigning bond0:XX aliases.
IMHO, the first method will add unnecessary load because redundant link monitoring in each bondXX. Am I right?

Re: Several bond interfaces or aliases?

Van den Broeck Tijl — Mon, 30 Jul 2007 04:06:32 GMT

It would indeed create unneccessary load (let alone it being supported by the NIC drivers and such).
The common method for multiple IP's has always been aliases. So you'd better go for that indeed.

Re: Several bond interfaces or aliases?

Matti_Kurkela — Mon, 30 Jul 2007 04:18:00 GMT

It seems to me a physical interface cannot be a member of more than one bond at the same time.

When you need one host to present several IP addresses to the same network segment, using aliases is the standard way to go.

Even if the TCP/IP networking model does not quite match the theoretical structure of the OSI layer model, the bonding happens on the lower protocol layer than IP: as far as it concerns the IP protocol, the bonded set of interfaces should be equivalent to a single interface.

MK

Re: Several bond interfaces or aliases?

Vitaly Karasik_1 — Mon, 30 Jul 2007 04:59:42 GMT

thank you for supporting my opinion :-)!

Probaly we were confused with Broadcom BASP bonding driver. It seems like they use swXX syntax instead of sw0:XX even in fact their swXX interfaces are aliases.