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Forum Discussion
CM1200 w. Port Aggregation = no 192.168.100.1 access?
Question - Is there any way to test performance or see monitoring of CM1200 if using port aggregation?? Trying to complete a setup of the following: Comcast Xfinity 1200mbps - CM1200 - port 1/...
Are you saying that Port Aggregation on the CM1200 and ORBI750 does not work?
With Port Aggregation the two pair of connected Ethernet ports should provide 1G+1G for a total capacity fo 2G. There can be a very small amount of packet reordering overhead that decreases that a bit, but it definately should be close to 2G when configured in this fashion.
LAG works on the WAN side however you'll not see anything on the wired LAN side as the ports there are only 1000Mbps. These top out at around 900-950Mpbs.
For wireless, if you have a good solid 4x4 MIMO 5Ghz AX supporting devices, then I beleve you could see over 1000Mpbs on 5Ghz AX if the connection rate between the RBR and this device was at 2400Mpbs with LAG enabled.
If I'm understanding you correctly you are saying that the connection between CM1200 and RBR750 does not support LACP-IEEE 802.3ad Port 1 & 2 to create an aggregated ethernet between the CM1200 and RBR750?
If so, that's really quite poor design / implementation.
It also directly contradicts what Netgear support stated.
No LAG is supported on both CM and RBR. It's just the connection rates on the ports are only 1000Mpbs. Even with LAG enabled on BOTH of them, you'll not get anymore more than 1000Mpbs on the other LAN ports as these are 1000Mpbs max rated only. So anything you connect to the LAN ports will not see anything over 1000Mpbs as this and a eithernet adapter tend to max out at around 900-950Mpbs.
Now if the WAN and LAN ports were 2.5Gb supporting on the modem and RBR, and you had a 2.5Gb ethernet card, of course you would see over 1000Mpbs.
Again you may see over 1000Mpbs with CM and RBR with LAG enabled on 5Ghz AX with a good supporting wifi device. Wired LAN, you won't.
The CM is a good modem. I just had mine online for over a year. Love it. I didn't use LAG much however my ISP is just 1Gb. Also my ISP supporting having more than 1 WAN IP address on the modem so I used it with having 2-3 routers connected, all getting different WAN IPs which allows me to have the main home network running while I can play and fiddle around with other router toys with out interferring with the home peoples.
I think I'm understanding you better now.
CM1200-RBR750 LAG works allowing 1G+1G - some overhead.
But there are limitations in the RBR as to utilization of that LAG'd connection capacity.
So, with LAG in place and the Xfinity WAN providing 1.2G (just sticking to download here)...
1. If LAN Port 3 and LAN Port 4 were each requesting.6G from Internet, would the RBR pass 1G or 1.2G from the Internet via the CM1200?
- I think you are implying it would be at maximum 1G regardless of the combined Port 3 and Port 4 requested traffic greater than 1G - due to a limitation in the LAN implementation of the RBR.
- Unlike many smart Ethernet switches that could pass 0.6G each from Port 3 and Port 4 and pass 1.2G across LAG'd Port 1 and Port 2.
- Is that your meaning?
2. Yet on WiFi side, with sufficient WiFi connections, presenting more than 1G to RBR750 requested from Internet, the RBR750 would pass up to the full capacity of the LAG'ed connection to the CM1200, up to 1.2GB max of the CM1200 and Xfinity service.
3. Would the Orbi speed test (on admin page) ever test to greater than 1.0G?