[j-nsp] Urgent advice needed...possible CWDM module conflict, can't keep link.

[Rene Avi]

Hi Morgan,

we had troubles on EX4500 with certain xWDM SFP+ (toggling link states 
like you described) and/or neighbor combinations as well.

In our case we could fix it with the SFP+ vendor* engineering department 
as they offered a modified product.

HTH, /Rene

* Contact me off-list for more details..

On 5/5/13 11:55 AM, Morgan McLean wrote:
> Hi all.
>
> I'm doing some work migrating from some brocade routers to a couple
> MX480's. The client currently uses CWDM between two sites, and the brocades
> handle the SFP's fine.
>
> We popped them into the MX480's and link came up and down a few times
> according to logs (though I could never catch it in an up state with show
> commands), the green light came on and off a bunch, but link never came. An
> EX4500 at the other end, which was previously interfacing with the brocade
> fine, showed tons of link up/ down events in the logs, much more than the
> MX showed.
>
> Is this a sign of an optic incompatibility on the MX side? There was enough
> signal for sure, and the brocades are able to operate with it so obviously
> it wouldn't be signal related.
>
> Any tips would be helpful.
>