[j-nsp] Best-site VPLS convergence feature in Junos 12.2?
per.granath at gcc.com.cy
Fri Sep 28 04:57:45 EDT 2012
It seems also "mac-flush" is now available with BGP based VPLS - before that was only supposed to work with LDP based.
Possibly that is a more important improvement.
> I see that there is a new "best-site" feature in Junos 12.2 for improving the
> convergence time in VPLS multi-homed environments:
> The site-preference election method for determining the primary vs. backup
> site uses BGP signalling so that the PEs can select the highest value to
> indicate which site will actively handle traffic in order to prevent loops, thus
> making the non-primary site passive. In our experience, if you commit a PE
> configuration with a higher site value, VPLS converges quicker than when you
> commit a PE configuration with a lower site value.
> So perhaps the new "best-site" feature might help.
> But operationally, it looks like the old site-preference and "best-site"
> methods for determining the primary are pretty much the same. Am I
> missing something? Does the "best-site" method really improve
> convergence, and if so, how so?
More information about the juniper-nsp