[c-nsp] DMVPN/mGRE on L3VPN - anyone experience issues with encapsulation overhead/MTU?

2013-10-09 Thread JP Senior
Hey, all. I'm looking at an option to consolidate and reduce complexity of a multi-provider L3VPN network in a way that lets me also use internet-based VPNs for backup. Right now I have dual provider uplinks at all of my sites to provide me inter-office WAN connectivity. DMVPN is a nice and

Re: [c-nsp] DMVPN/mGRE on L3VPN - anyone experience issues with encapsulation overhead/MTU?

2013-10-09 Thread Luan Nguyen
People do this all the time: GRE/IPSEC back up to MPLS VPN. Lots of service providers have managed service that does this for you. With modern hardware, fragmentation shouldn't be a big deal. Most providers have end to end jumbo frame so just need to be mindful of who does and who don't. Good

Re: [c-nsp] DMVPN/mGRE on L3VPN - anyone experience issues with encapsulation overhead/MTU?

2013-10-09 Thread Bruce Pinsky
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 JP Senior wrote: Hey, all. I'm looking at an option to consolidate and reduce complexity of a multi-provider L3VPN network in a way that lets me also use internet-based VPNs for backup. Right now I have dual provider uplinks at all of my sites

Re: [c-nsp] DMVPN/mGRE on L3VPN - anyone experience issues with encapsulation overhead/MTU?

2013-10-09 Thread Alex Pressé
I run a similar topology. On the tunnel interfaces I have ip tcp adjust-mss 1452 and tunnel path-mtu-discovery. No problems encountered; though the traffic profile is basic remote office file and print. On Wed, Oct 9, 2013 at 9:30 AM, JP Senior seni...@bennettjones.com wrote: Hey, all. I'm