This topic has been marked solved and closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one.
In my home office, I am also using a router which is tp-link archer c4000 and it's capable of Link Aggregation that says (router control interface indicate just static lag), but I could not find any info. about which teaming modes it has support.
Of course, I also ask to tp-link but I know here is the place I could get answer faster, so anyone knows/uses about this router LAG teaming modes?
Firstly I try to set it 802.3ad lacp (which I didn't know the router only supports static lag) then I lost the connection,
then disabled LAG from router and connected again. After that I asked the community.
I set it up XOR teaming mode, it worked but I really do not know is it working bonding mode truely,
whether XOR is dynamic or static don't know?
First of all, I was mistakenly thinking you had picked LACP with a layer-2 hash. That of course doesn't work (as you found).
Both XOR and Round-Robin are static, so they should both work.
There are several ways to decide which packets go on which ethernet connection. This is a transmit/send decision - the receiver doesn't know or care what method is used.
XOR does an exclusive-or of the NAS MAC address and the destination MAC address, and uses that as a coin-flip. One consequence is that any given connection will always use the same NIC. That is, if the answer for your PC turns out to be "1", then eth1 will always be used by the NAS when sending to your PC. IF the answer for your media player also turns out to be "1", then eth1 will always be used for it also (even if nothing else is using eth0).
Round-Robin just alternates - the first packet (to anywhere) is put on eth0, the second one is put on eth1, etc.
If you only have a couple of client devices, then Round-Robin will usually do a better job of balancing the load on the two links. The problem with Round-Robin is that the NAS can try to send 2 gigabits of data to a PC that only has a single gigabit connection. In that scenario, there can sometimes be buffer overrun - which leads to packet loss. Though most protocols do a pretty good job of dealing with that - since the same overrun issue shows up if the client is connected via WiFi (which is slower than gigabit ethernet).
So I think Round-Robin will likely give you a bit better performance when downloading from the NAS - but if you are ok with what you are seeing with XOR, you could just well enough alone.
