On 01:46 Sat 01 Mar , Sasha Khapyorsky wrote:
> On 09:58 Fri 29 Feb , Albert Chu wrote:
> >
> > What you're trying to do is calculate "ignore_existing_lfts" when the port
> > trap is received rather than during routing later on?
>
> Not trap but when PortInfo is received during subnet discovery phase of
> sweep (before routing configuration).
I started to test this I saw that it solves the problem only partially.
For example in such topology:
sw3
/ \
- sw1 sw2 ->
\ /
sw4
Let's disconnect link between switches 2 and 3, paths to arrow direction
at switch 1 will be rerouted via sw4. Now let's restore the link -
switches 2 and 3 will be enforced to rebalance routing paths, but sw1
will not and all traffic will go via sw4.
Looks we need to set ignore_existing_lfts globally when any switch was
reconnected in a fabric.
Sasha
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