[j-nsp] OSPF neig / SRX cluster / LACP

[Aaron Dewell]

Depending on how you have your redundancy groups set up, only the active
links will be active at any given time. That means that the mxs won't see
two links active, they will see one each.  So you should have two
adjacencies on the srx and one on each mx in this scenario.

Lacp would only be useful with multiple links between the mx and the same
srx node. It does not help for failover between the two srx cluster
members.

I'm not sure this works in quite the way you are expecting.
On Jan 15, 2014 7:32 PM, "Samol" <molasian at gmail.com> wrote:

> Hi Experts,
>
> I'm running out of idea what else to try. I think it has something to do
> with clustering on SRX that makes ospf neigh never comes up. Let me explain
> you the scenario, I have two SRXs and two MXs. The two SRXs are clustered
> and two routing instances there, INSIDE and OUTSIDE. both MXs are also
> having two RI, INSIDE and OUTSIDE. RI OUSIDE on SRX connect to OUSIDE RI on
> MX. We got the physical connectivity like this :
>
> MX-A-----------SRX-A----------MX-B
> MX-A-----------SRX-B----------MX-B
>
> We basically have 4 ospf neig. LACP are between MX-A and SRX clustering ,
> same to MX-B and SRX cluster.
>
> MX-A INSIDE(irb)--------------(reth)INSIDE SRX
> OUTSIDE(reth)------------(irb)MX-B OUTSIDE
>
> MX-B INSIDE(irb)--------------(reth)INSIDE SRX
> OUTSIDE(reth)------------(irb)MX-A OUTSIDE
>
> I got OSPF neighbor UP for all neighbors (RI: OUTSIDE and INSIDE) but not
> for Routing Instance (RI) INSIDE between SRX and MX-B. and If I shutdown
> interface on SRX-B (secondary) that connecting MX, all OSPF neighbors are
> UP.
>
> Has anyone experience this ? I believe this must be caused by some features
> on SRX clustering things like LACP on Reth interfaces or so.
>
> would very appreciate for any comment.
>
>
> --
> Samol Khoeurn
> (855) 077 55 64 02 / (855) 067 41 88 66
> Network Engineer
> Cisco: CCNA/CCNP SP/CCIP/
> Juniper: JNCIA/JNCIS-ENT,SP,SEC/JNCIP-ENT
> www.linkedin.com/in/samolkhoeurn
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