Maximum Overall traffic

Is there any limitation on the overall traffic it can read?
I see it’s not going above 100Gbps on the overall?

I think the rrd files are limited to 100G. Use rrdtune (see the docs), if your port speed is detected as 200G it will increase the limit.

With rrdtune, can I overcome the limit of overall traffic? for example if I’ve 10 x 100G interfaces
and all are utilized, would I see 1T traffic?
In that case how Service providers presents Tera of traffic?

Separate interfaces will show 100G fine and collectively will show 1T if combined yes.

So to see overall traffic of 1T with 10x100Gbps interfaces, can I use default rrd tool? or I still need to deploy rrdtune?

Default is fine if they are separate interfaces