Hi,
I am considering upgrading my router (RB750Gr3). I am eyeing the CRS309-1G-8S+IN in the hopes that the fast ISP in town eventually expand to my street (10G fiber).
My question is about L3HW offloading, and how it plays with PBR. Currently, I have a number of rules (/routing/rule), some based on source IP and some on VLAN. The purpose is to route certain traffic through VPNs (WireGuard, but I run on a separate computer, not on the router itself). Example: VLAN10 routes all traffic through main routing table, VLAN20 routes local traffic through router but sends external traffic through VPN-1, and VLAN30 sends everything through VPN-2. I use a number of different VPNs, so it's not just a binary "main route or VPN."
I am unclear how this plays with L3HW offloading. This page ( https://help.mikrotik.com/docs/spaces/ROS/pages/62390319/L3+Hardware+Offloading#L3HardwareOffloading-Inter-VLANRoutingwithUpstreamPortBehindFirewall/NAT ) mentions pbr-cap/usage/lpm-bank but I am unclear if that's referring to what I'd be using. That page also says that only the main routing table is HW offloaded in the context of VRF, so I wasn't sure if that also applied to PBR.
The question then, is, does L3HW offloading 1) Just Work for PBR /routing/rule, 2) only work via Fasttrack (perhaps requiring some redirect-to-cpu switch rules), or 3) ain't gonna work?
To preempt a few questions: I know Fasttrack is a last resort. I am a single household, I don't have concerns about TCAM exhaustion. I am considering a CRS instead of a "true" router due to cost and reduced energy footprint. I also know that I don't "need" 10G; if it is ever offered on my street it'll be via an ISP with a "best effort" policy, i.e., they don't have throttled tiers, so 10G is their only offering (cheaper than we're paying now for asymmetric cable).
Thanks!
Oh they absolutely do! My only point is that grid supply must equal grid demand. There are many ways to achieve this, as folks here have pointed out.
Throttling power generation (turning off/disconnecting PV from grid for example), and storage (chemical, heat, or hydro battery) are all established technologies, they just need to be implemented properly to avoid supply/demand mismatch.