Re: Strange connectivity issue Frontier EVPL

[Jeff Richmond <jeff.richmond () gmail com>]

Jay, I previously ran the engineering org over there, so sent this to my old team to look at, including the best 
engineer I know in regard to the RADs. Will pass along anything they come back with.

Thanks,
-Jeff

> On Nov 6, 2020, at 8:59 AM, Jay Hennigan <jay () west net> wrote:
>
> We have a strange issue that defies logic. We have a NNI at our POP with Frontier serving as an aggregation circuit 
> with different customers on different VLANs. It's working well to several customers.
>
> Bringing up a new customer shows roughly half of the IP addresses unreachable across the link, as if there's some 
> kind of load-balancing or hashing function that's mis-directing half of the traffic. It's consistent, if an address 
> is reachable it's always reachable. If it's not reachable, it's never reachable. Everything ARPs fine.
>
> The Frontier circuit is layer 2 so shouldn't care about IP addresses. Frontier tech shows no trouble. They changed 
> the RAD device on-premise. We've triple-checked configurations, torn down and rebuilt subinterface, etc. with no joy.
>
> Any suggestions?
>
> -- 
> Jay Hennigan - jay () west net
> Network Engineering - CCIE #7880
> 503 897-8550 - WB6RDV