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.sallinen@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 <swmike@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-pieranto... 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: swmike@swm.pp.se