[AusNOG] Mikrotik routers and "VLAN trunking over WAN"

[John Gavrilita]

Hi Ross,
The first thing that crossed my mind is the inevitable situation when packets will arrive out of order because the designed solution uses bandwidth aggregation / load balancing. For TCP it's ok, but for UDP it'll be a nightmare and the users will literally hear it.
Mikrotik is a nifty platform, and as with any other device, one has to know how to cook it.
Cheers :)





John Gavrilita
Network Engineer

Summit IT Management | Summit Internet | Summit Creative - ‘reach your peak’
Divisions of The Summit Group (Australia) Pty Ltd

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-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Ross Wheeler
Sent: Wednesday, 18 June 2014 11:04 AM
To: ausnog at lists.ausnog.net
Subject: [AusNOG] Mikrotik routers and "VLAN trunking over WAN"


Looking for someone with Mikrotik experience to confirm which devices (any? all?) might achieve the desired outcome here.

Basically there are a number of sites of varying sizes, but for the purposes of argument, lets say 20 sites.

Most sites are proposed to have at least two diverse paths. These could be ADSL, Microwave, 3G/4G/LTE etc. The point is, different providers, different paths.

Each site has it's (n) paths connected to interfaces on a Mikrotik router which can aggregate bandwidth across (n) links (and reduce latency
somewhat) while providing an ability to withstand (n-1) link failures.

The user further intends making extensive use of VLANs to "isolate"
services (eg, phones, computers, security devices, "public" devices etc).
Thus it would be entirely likely that there could be 40 switches at 20 sites, each with 10.10.8.0/22 for "phones" all on VLAN8.

Not withstanding how YOU might do it, is there an intrinsic problem with the design (or Mikrotik as the each sites 'edge device') as it stands?

Thanks in advance,
RossW
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