[c-nsp] LACP and Wireless links

[Herro91]

Could you make the links routed so you could make use of a routing
protocol/bfd for failure detection, and then run an overlay such as L2TPv3
or MPLS to gain the L2 transparency across these links?

On Sat, Sep 3, 2011 at 3:39 PM, Graham Beneke <graham at neology.co.za> wrote:

> I typed out a whole response and it appears that it never made it here...
>
> On 31/08/2011 05:59, Andrew Jones wrote:
> > do you need layer 2 adjacency?
>
> Yes - it is a requirement. A number of the systems teams depending on
> the installation will have high availability setups that need L2. There
> may well be ways of doing this without L2 but the systems guys aren't keen.
>
> > fast LACP timers might work, depending if the WAN provider forwards them
> across the SDH network for you. Some other layer 2 services such as VPLS
> don't.
>
> Its not so much a WAN provider. The microwave team has installed L2
> circuits for me and I plug directly into the back of their radios. The
> equipment is pretty much a dumb bridge.
>
> > Configuring the links as routed links and using something like OSPF.
> EIGRP, with Bi-directional forwarding detection enabled would do the trick,
> if you don't need layer 2.
>
> Haven't got much further than a bit of lab tinkering with BFD. Does it
> perform well in production?
>
> --
> Graham Beneke
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