[j-nsp] EX series - LACP flapping during ethernet storm.

[Mark Tinka]

On Thursday, October 20, 2011 09:18:06 PM Chuck Anderson 
wrote:

> Not true according to these:

Not according to what we actually saw in the field.

We configured LAG's with LACP and our EX4200 couldn't load 
balance any of the traffic.

While those links discuss how the box performs load sharing, 
it isn't actually configurable at all, nor does it work. The 
issue also affects the EX3200, but not sure about the rest 
of the EX family.

We opened a case with JTAC and they confirmed that a 
hardware limitation means the switch doesn't actually do any 
kind of load balancing over LAG's. JTAC said there are some 
internal discussions to write software to "sort of make it 
load share", but that's not definite.

We ended swapping the switches out with Cisco's instead, and 
got our load balancing working.

Cheers,

Mark.
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