I am testing the L3HW of CCR2216, which I plan to put into production next week, by injecting routes using BGP replay tool.
I found these two cases, where both are not in the 60k-120k range mentioned in https://help.mikrotik.com/docs/display/ROS/L3+Hardware+Offloading:
- 37k out of 50k prefixes are in L3HW
- 300k out of 300k prefixes are in L3HW
My questions are:
- Does CCR2216 do dynamic updates of route prefixes in L3HW based on the traffic?
- Any effective route filter techniques to maximize prefixes in L3HW?
Thanks
50k prefixes
[admin@MikroTik] /routing/bgp/connection> /interface/ethernet/switch/l3hw-settings/advanced/monitor once
ipv4-routes-total: 50035
ipv4-routes-hw: 37779
ipv4-routes-cpu: 12255
ipv4-shortest-hw-prefix: 22
ipv4-hosts: 14
ipv6-routes-total: 16
ipv6-routes-hw: 0
ipv6-routes-cpu: 16
ipv6-shortest-hw-prefix: 0
ipv6-hosts: 2
route-queue-size: 0
route-queue-rate: 290518
route-process-rate: 290518
fasttrack-ipv4-conns: 0
fasttrack-queue-size: 0
fasttrack-queue-rate: 0
fasttrack-process-rate: 0
fasttrack-hw-min-speed: 0
fasttrack-hw-offloaded: 0
fasttrack-hw-unloaded: 0
lpm-cap: 27200
lpm-usage: 26495
lpm-bank-cap: 1360
lpm-bank-usage: 1360,1360,1360,1360,1360,1360,1360,1360,1360,1360,1360,655,1360,1360,1360,1360,
1360,1360,1360,1360
pbr-cap: 8192
pbr-usage: 0
pbr-lpm-bank: 2
nat-usage: 0
nexthop-cap: 8192
nexthop-usage: 96
300k prefixes
[admin@MikroTik] /routing/bgp/connection> /interface/ethernet/switch/l3hw-settings/advanced/monitor once
ipv4-routes-total: 300032
ipv4-routes-hw: 300000
ipv4-routes-cpu: 31
ipv4-shortest-hw-prefix: 0
ipv4-hosts: 14
ipv6-routes-total: 16
ipv6-routes-hw: 0
ipv6-routes-cpu: 16
ipv6-shortest-hw-prefix: 0
ipv6-hosts: 2
route-queue-size: 0
route-queue-rate: 204259
route-process-rate: 204259
fasttrack-ipv4-conns: 0
fasttrack-queue-size: 0
fasttrack-queue-rate: 0
fasttrack-process-rate: 0
fasttrack-hw-min-speed: 0
fasttrack-hw-offloaded: 0
fasttrack-hw-unloaded: 0
lpm-cap: 27200
lpm-usage: 12988
lpm-bank-cap: 1360
lpm-bank-usage: 1259,176,0,0,1360,1360,1360,1360,0,0,0,0,1360,1360,1360,1284,749,0,0,0
pbr-cap: 8192
pbr-usage: 0
pbr-lpm-bank: 2
nat-usage: 0
nexthop-cap: 8192
nexthop-usage: 96