[c-nsp] OSPF equal cost load balancing

[Patrick Cole]

James,

That would make more sense - since the ASR1k supports subinterfaces you don't
need to use BDIs anyway so it's a non event for us - we terminate our
pseudowires on ASR1k too and loop back the pppoe traffic to terminate. 

PC

Mon, Sep 04, 2017 at 08:42:10PM +0100, James Bensley wrote:


> On 1 September 2017 at 02:02, Patrick Cole <z at amused.net> wrote:
> > James,
> >
> > Interesting you should mention the PPPoE thing as all of our ASR920 P/PE are
> > deployed using BDI for NNI facing interfaces and we carry bucketloads
> > PPPoE traffic across them all without any issues.
> >
> > The only thing I had to be weary of was accidentally putting two service
> > instances in the bridge domain for the NNI IP interface as it would spit a
> > ASIC programming error for FRR and start blackholing some labeled traffic.
> > But as long as you're meticulous about that it seems fine.
> >
> > Thu, Aug 31, 2017 at 09:12:05AM +0100, James Bensley wrote:
> >> https://null.53bits.co.uk/index.php?page=mpls-over-phy-vs-eff-bdi-svi
> 
> Interesting! I maybe mis-remembering as it was about 6+ months ago but
> we had ASR920s and ME3600s both running pseudowires back to central
> ASR1001s, and maybe the problem was with the ASR1001s instead of the
> ASR920s. Whichever device type it was (I thought it was the ASR920s
> though) I asked TAC and they confirmed it's not supported (pseudowires
> with PPPoE payload when the core facing interface is a BDI).
> 
> I searched and searched my self and couldn't find any documentation
> saying that it wasn't supported, TAC did eventually show me some
> documentation that said it wasn't supported.
> 
> (In-fact yes, it was the ASR1001, re-reading my table linked above, in
> none of the permutations is the ASR1001 listed as working when
> transporting PPPoE with a BDI core interface. I have such a bad
> memory, that is why I have to write this stuff down :S )
> 
> Cheers,
> James.
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-- 
Patrick Cole <z at wwwires.com>
Senior Network Specialist
World Without Wires
PO Box 869. Palm Beach, QLD, 4221
Ph:  0410 626 630