On 3/9/12 4:08 AM, Damien Fleuriot wrote:
Well that's exactly what I'm trying to show you.
Link aggregation will *NOT* allow you to get 200mbs between 2 servers by
sending data over the 2 cables.
As per the example I pasted below, link aggregation uses a load
balancing algorithm to share the traffic across several links.
It will *NOT* use *BOTH* links for a single "source ip - destination ip"
pair.
All of which is explained at least twice in the document the OP claims
to have used
http://www.freebsd.org/doc/en/books/handbook/network-aggregation.html
once in the section on LACP:
"LACP balances outgoing traffic across the active ports based on hashed
protocol header information and accepts incoming traffic from any active
port. The hash includes the Ethernet source and destination address,
and, if available, the VLAN tag, and the IPv4/IPv6 source and
destination address."
and once in Example 32-1, which is presumably being used as the cookbook
for this project:
"Since frame ordering is mandatory on Ethernet links then any traffic
between two stations always flows over the same physical link limiting
the maximum speed to that of one interface. The transmit algorithm
attempts to use as much information as it can to distinguish different
traffic flows and balance across the available interfaces."
Has use of Gig ethernet been considered?
--
--Jon Radel
[email protected]
