Hi,

I newly bought a CRS317.
Before doing any tests, I upgraded to 6.42.6 (packages and firmware).
Then I follow the chapter "Bonding" of the wiki https://wiki.mikrotik.com/wiki/Manual:C ... es#Bonding.
At the last step, when "printing" the details of the configuration, I can't have hardware offload on the bond1 as a bridge port. No problem with non-bond port.

I have several questions :
- is the wiki right ?
- has it worked with an older version ?
- is it a ROS 6.42.6 bug ?


Some more informations :
- I reset the configuration, don't use any "quick set".
- All the sfp cage are empty.
- I'm using the ether1 to use the terminal of winbox 3.16.


Thx for your help !

Hi
We have the same problem!
The wiki: https://wiki.mikrotik.com/wiki/Manual:C ... s_switches say "Since RouterOS v6.42 all CRS3xx series switches support hardware offloading with bonding interfaces.".
But offload is not active in bond interface.
CPU load stays in 90% with a traffic of 600Mbps.

Version 6.42.1 and version 6.42.6 have the same problem.

[admin@XXX-XXX] /interface bonding> /system routerboard print
routerboard: yes
model: CRS317-1G-16S+
serial-number: 8ED5085B048A
firmware-type: dx3230L
factory-firmware: 6.41
current-firmware: 6.42.6
upgrade-firmware: 6.42.6

[admin@XXX-XXX] /interface bridge> print from=[find name=br1] detail
Flags: X - disabled, R - running
0 R name="br1" mtu=auto actual-mtu=1500 l2mtu=1592 arp=enabled arp-timeout=auto mac-address=CC:2D:E0:AE:DC:72 protocol-mode=rstp fast-forward=no
igmp-snooping=no auto-mac=yes ageing-time=5m priority=0x8000 max-message-age=20s forward-delay=15s transmit-hold-count=6 vlan-filtering=no

fast-forward enabled or not enabled don't make difference.

[admin@XXX-XXX] /interface bridge port> print
Flags: X - disabled, I - inactive, D - dynamic, H - hw-offload
# INTERFACE BRIDGE HW PVID PRIORITY PATH-COST INTERNAL-PATH-COST HORIZON
0 H sfp-sfpplus1 br0 yes 1 0x80 10 10 none
1 I H sfp-sfpplus2 br0 yes 1 0x80 10 10 none
2 I H sfp-sfpplus3 br0 yes 1 0x80 10 10 none
3 I H sfp-sfpplus4 br0 yes 1 0x80 10 10 none
4 I H sfp-sfpplus5 br0 yes 1 0x80 10 10 none
5 I H sfp-sfpplus6 br0 yes 1 0x80 10 10 none
6 I H sfp-sfpplus7 br0 yes 1 0x80 10 10 none
7 I H sfp-sfpplus8 br0 yes 1 0x80 10 10 none
8 H sfp-sfpplus9 br0 yes 1 0x80 10 10 none
9 H sfp-sfpplus10 br0 yes 1 0x80 10 10 none
10 I H sfp-sfpplus11 br0 yes 1 0x80 10 10 none
11 I H sfp-sfpplus12 br0 yes 1 0x80 10 10 none
12 bond1 br1 yes 1 0x80 10 10 none

[admin@XXX-XXX] /interface bridge port> print from=[find interface=bond1] detail
Flags: X - disabled, I - inactive, D - dynamic, H - hw-offload
0 interface=bond1 bridge=br1 priority=0x80 path-cost=10 internal-path-cost=10 edge=auto point-to-point=auto learn=auto horizon=none hw=yes
auto-isolate=no restricted-role=no restricted-tcn=no pvid=1 frame-types=admit-all ingress-filtering=no unknown-unicast-flood=yes
unknown-multicast-flood=yes broadcast-flood=yes

[admin@XXX-XXX] /interface bonding> print detail
Flags: X - disabled, R - running
0 R name="bond1" mtu=1500 mac-address=CC:2D:E0:AE:DC:72 arp=enabled arp-timeout=auto slaves=sfp-sfpplus13,sfp-sfpplus14,sfp-sfpplus15,sfp-sfpplus16
mode=802.3ad primary=none link-monitoring=mii arp-interval=100ms arp-ip-targets="" mii-interval=100ms down-delay=0ms up-delay=0ms
lacp-rate=30secs transmit-hash-policy=layer-2-and-3 min-links=0

Which is the problem?

after several tests, everything is OK.

In fact until a LAG (LACP) isn't linked to another device, the bond interface doesn't show the hardware offload flag in the bridge.
But when the link is up and connected to a device, then the hardware offload flag appears.

I did several tests between CRS317, CRS326 & CRS328, and it works fine on each device.

OK!
How did the system behave with traffic?
I did something similar, the "H" tag appeared on the bond1 interface, but the CPU usage was fixed at 99%.
My problem still persists.

After make contact with Mikrotik team, I remove inter-vlan routing, bgp and other routing configurations and took this to other router. With this, the CRS317 was changed to L2 Switch with Vlan + LACP in only one bridge with hw-offload. So, cpu usage is zero with traffic of 1.25Gbps. Before, with 600Mbps cpu usage reached 99%.

In other words, CRS317 + VLAN + LACP work if not inter-vlan routing present.

This greatly improved performance.