LAGing backbone links
nick at foobar.org
Tue Apr 5 19:05:59 UTC 2011
On 05/04/2011 16:30, Shane Amante wrote:
> 1) Be mindful of the number of component-links you can put into a
> single LAG. This varies by platform. In general, for higher-end
> routers/switches the minimum number of component-links in a single
> LAG is 16.
Some older equipment will unequally prefer certain links over others,
depending on the number of members in the LAG. I.e. a 2-member LAG
might load balance equally under ideal conditions, but a 3-member LAG
might naturally load balance 2:2:1. This is particularly a problem if
you have, say an 8-member LAG and you lose a single member, which could
drop your overall throughput to the total of 4 members.
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