[j-nsp] VPLS design - dual homed

[Doug Hanks]

The MX can do this several different ways:

1) VPLS MH - it's a O(n) convergence problem, where n is the number of
VPLS instances
2) MC-LAG A/S - now becomes a O(1) convergence problem


On 10/29/12 4:19 PM, "Luca Salvatore" <Luca at ninefold.com> wrote:

>Hi Guys,
>
>I have a question regarding dual VPLS links.  My topology will look like
>this:
>
>MX1---------darkfibre----------MX2
>  |                                                          |
>  |                                                          |
>MX3---------darkfibre----------MX4
>
>So above you see that there are dual  links which will create a loop.
>
>How does VPLS handle these types of topologies?  Do I need to just use
>spanning tree and have one link in blocking?
>Or perhaps use MSTP and send some VLANs down one link and some down the
>other?
>I will be spanning around 1000 VLANs across these links. They are 10Gb
>links, so it seems a shame to have one in a blocking state.
>
>Any other recommendations?  Perhaps M-LAG?
>Thanks,
>
>Luca.
>
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