[j-nsp] OSPF reference-bandwidth 1T

[James Bensley]

On Wed, 16 Jan 2019 at 15:06, Event Script <event.script.jnsp at gmail.com> wrote:
>
> In the process of adding 100G, LAGs with multiple 100G, and to be prepared
> for 400G, looking for feedback on setting ospf reference-bandwidth to 1T.
>
> Please let me know if you have had any issues with this, or if it has been
> a smooth transition for you .
>
> Thanks in advance!

Hi there,

I have worked on networks with the OSPF reference bandwidth set to
1Tbps for the same reason as you, we were planning to deploy 100G
links within the next 12 months. As we built the network we used a
reference bandwidth of 1Tbps from the start so that we wouldn't have
to change it in the future. We also expected to deploy 100G LAGs so a
reference bandwidth of 100G wasn't enough. I've worked on networks
where it has been set to 100Gbps, that just seems silly to me as
you'll just have to increase it at some point. Setting it to 1Tbps
makes good sense to me and in my experince it works fine (tested on
both Cisco and Juniper).

Cheers,
James.