Re: IGP protocol

[Tashi Phuntsho <toebinoz () gmail com>]

From Asia region (Bhutan):

> On 10 Nov 2018, at 1:03 am, im <nanog () netfront jp> wrote:
>
> I heard that OSPF is only famous in asia region…

Not necessarily :-)

>  1. what is your backbone's IGP protocol?

IS-IS

>  2. why you choose it?

OSPFv3 was quite flaky (could have been OS bugs), and there wasn’t v4 support until rfc5838, so migrated to IS-IS when 
deploying v6 (with Philip Smith’s help).

But preferred multi topology to allow for incremental v6 deployment (without affecting v4).

—
Tashi