Hi, My advice is not to mix IGPs. If you are already running ISIS, then go for multi-topology and dual-stack it.
I've done that several times, running different backbones, works like a charm. Less overhead as you'd only be running one IGP. My 2 cents. > Le 16 sept. 2017 à 10:09, Fredrik Sallinen <fredrik.salli...@gmail.com> a > écrit : > > Thank you all for your Ideas. AFAIK one of the main decisions for IPv6 > transition and deployment is the choice of IPv6 IGP. I read somewhere > that its a good practice to use different IGP protocol for IPv6 and > IPv4. For example if IGP for IPv4 is IS-IS then use OSPFv3 for IPv6. > any comments on this? > Additionally I will appreciate it if you share your suggestions on > products and their performance? For example If I go for NAT64+DNS64 to > handle IPv4 traffic, What sort of carrier grade products are you > recommending and can you share your experience on their > performance/pitfalls? currently we have ~150Gbps of IPv4 traffic, so > we need a solution to > support such scale and future growth. > > > Regards, > >> On Thu, Sep 14, 2017 at 9:35 PM, Mikael Abrahamsson <swm...@swm.pp.se> wrote: >>> On Wed, 13 Sep 2017, Fredrik Sallinen wrote: >>> >>> Hello, >>> >>> Recently we have decided to start IPv6 migration in our network. We >>> have ~1K BNGs and connecting our customers to network using PPPoE. >>> I'd be interested in hearing from the technical community about their >>> experiences and recommendations on this process. I'm wondering: >>> >>> Shall I go for IPv6-only deployment or dual stack? >> >> >> For PPPoE with existing IPv4, go dual stack. >> >>> Where to start with IPv6? (core, edge or ...) >> >> >> Core, peering, work outwards towards end users. >> >>> What are the best practices for ISPs? >>> What are the costs and return on investment? >>> How to identify address CPE and legacy application issues? >> >> >> There is a lot written and presented about IPv6 deployment. People have been >> doing this in volume since around 2010, and if you search for IPv6 >> deployment experience you'll find lots of presentations. >> >> Some I found that seem relevant: >> >> https://www.nanog.org/meetings/nanog51/presentations/Monday/aronson-pierantozzi-level3-ipv6.pdf >> https://www.ietf.org/proceedings/54/slides/plenary-15.pdf >> https://www.apnic.net/community/ipv6-program/ipv6-stories/ >> https://www.ipv6council.be/experiences-de-deploiements-ipv6/ >> >> If you prefer video form, there are lots of presentations from conferences, >> available on youtube as well. >> >> -- >> Mikael Abrahamsson email: swm...@swm.pp.se