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I am New to Netgear and i want to cofigure MLAG and LCAP to my Switch M4500-32 C But i did not find proper Doc which give command referance if someone can guide the configuration using CLI will be helpfull
First, please upgrade your M4500 switches to the latest firmware; this way Auto-LAG and Auto-Trunk can be used with the AV User Interface with the other M series.
MLAG still needs to be configured manually, using CLI, between two switches. After that, Auto-LAG and Auto-Trunk can be configured in order to have any M4250/M4300/M4350/M4500 switches connecting to both MLAG switches forming LACP LAGs automatically.
I am showing an example below using two M4500 XSM4556; but you can follow it step by step with your two M4500 CSM4532, this is the exact same with different port numbers:
Example: two M4500 XSM4556 switches can be used in active-active mode, so that the GSM4248UX’s can connect to both of them using LAG as if it was a single switch at the core.
This is MLAG, not stacking. But it’s better than stacking, no multicast flooding between the two core switches.
The method is explained in the admin guide starting page 62.
First enable MLAG and create MLAG Domain 1 on each switch, with all necessary other commands (peer-keepalive etc.)
Second create a LAG between the two core switches, and convert this LAG into a peer link for this MLAG domain
Third create the LAGs on each core switch, specifying the MLAG number – this way you have a MLAG across both switches every time
On the access GSM4248UX switches, just do a standard LAG (stay default on all parameters) and connect to every core switch
Example:
If I am assuming that your left XSM4556 has a Source Management IP address of 172.20.20.101 (for instance source management is OOB port)
If I am assuming that your left XSM4556 has a Source Management IP address of 172.20.20.102 (for instance source management is OOB port)
If I am assuming that you are going to use the 8x100G ports on each XSM4556 for the 800G peer link between the two core switches
Enable MLAG and create MLAG Domain 1 on each core switch, with dual control plane detection (keepalive source destination)
Re: MLag and LACP configuration on M4500 (using CLI)
Is it a QSFP+ 40G breakout DAC cable that you are inserting into one of the QSFP28 100G ports of the M4500 CSM4532?
The portmode command is used to configure QSFP28 interfaces with 1x100G, 1x40G, 4x25G, or 4x10G. If you are using portmode 4x10G here, we may have interop issue with the breakout DAC cable; or with the way the third-party switches handle it on the other end.
Please upgrade the M4500 CSM4532 switch with latest software:
Please use the release notes for the method updating the firmware.
With the latest software, you will have the AV User Interface, and it will be easier to produce the Tech Support file (Diagnostics/Support Diagnostics). In the TS file, there are all the show fiber command that will help understand the problem on the port / DAC.
The portmode 4x10G command is creating 4 new ports. These new ports need to be configured, added to LAG, as any other port. The port numbering is different for them. The tech-support file will help us understand where you are and what to do.
Please the use the Software Administration Manual page 43 to see the port numbering of the 4x10G in your case. I believe you need to configure LAG on these new ports. https://www.netgear.com/support/product/m4500-32c#docs
So your 100G port is detach because it's breakout to four other ports later on. You need to configure the other ports, form LAG etc.
