Discussion about MoCA 2.5 adapter with 2.5GbE Ethernet port

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gocoax

Regular Contributor
We found many people asking for the MoCA 2.5 adapter with 2.5Gbps Ethernet port. Perhaps it is because MoCA2.5 emphasizes that it can support 2.5Gbps bandwidth.
Today let me do more introduction about the MoCA bandwidth, and try to find out can we benefit from 2.5GbE Ethernet port.
1, MoCA bandwidth is shared by TDM.
Because coaxial cable only has one circuit, so MoCA is not a full-duplex system. it is a help-duplex system. If one node talks to another one node, the others must wait. The bandwidth is allocated by TDM mode.
2, MoCA bandwidth is shared by all the MoCA devices in the same network.
All the MoCA devices are connected to the same coaxial network, so they share the total MoCA bandwidth, about 2.5Gbps for MoCA 2.5. For example, there are 4 nodes in the same network, suppose all them have 2.5GbE port. if A to B is using 1Gbps bandwidth, then C to D only can use 1.5Gbps bandwidth.
3, Not all the packet length can get 2.5Gbps
Only large packets the length is more than 1000Bytes can get 2.5Gbps. the small packets get a much lower bandwidth, for example, 64Bytes packet only get about 250Mbps. The longer packet size, the higher bandwidth. Don't worry, for most Internet service, such as web suffering, watching video and gaming, we are using large packets only.
4, In fact, MoCA 2.5 can achieve about 3Gbps bandwidth.
If you can test the MoCA 2.5 adapters with professional test equipment, you can find with packet size over 1280 bytes, you can get more 3Gbps bandwidth.
I attached our report for your reference.

Any discussion is welcome.
 

Attachments

  • DApps-2544DemoResult_2020_08_31_09_19_23.pdf
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krkaufman

Very Senior Member
try to find out can we benefit from 2.5GbE Ethernet port.
At a minimum, having MoCA 2.5 adapters with a 2.5GbE port would be beneficial to those setups requiring a repeater configuration, ensuring the throughput between two MoCA 2.5 segments wouldn’t be throttled by their Ethernet connection.

example (borrowing from the “MoCA best practices” document):

9594398D-6B4C-48A7-A591-60A65A04A820.png
 

Samir

Very Senior Member
I'm glad to see that 2.5Gbe phy hardware and demand has increased to the point a product with a 2.5Gb port is viable. For a point to point link where moca is being used, this more than doubles the amount of available bandwidth, which will vastly increases the potential speeds for such a link.

I have noticed that gocoax has some competition in the 2.5Gbps moca adapter space after being the only retail one available--specifically from translite and actiontec. How is your product superior to theirs, and what can we expect for the next evolution of Moca?
 

gocoax

Regular Contributor
I'm glad to see that 2.5Gbe phy hardware and demand has increased to the point a product with a 2.5Gb port is viable. For a point to point link where moca is being used, this more than doubles the amount of available bandwidth, which will vastly increases the potential speeds for such a link.

I have noticed that gocoax has some competition in the 2.5Gbps moca adapter space after being the only retail one available--specifically from translite and actiontec. How is your product superior to theirs, and what can we expect for the next evolution of Moca?
We will try our best to provide more cost-effective products to the customer and we will provide best customer support.
 

Samir

Very Senior Member
We will try our best to provide more cost-effective products to the customer and we will provide best customer support.
It always good to see companies reach out to where the customer is, like here. :)

You mentioned the gocoax 2.5 moca products in theory can even hit 3Gbps of bandwidth. Do you think the other brands will work in a similar manner?
 

Samir

Very Senior Member
After so many years of moca basically being forgotten, the number of products available really show that it may be poised for a real comeback. Translite even has a commercial model that can support up to 31 adapters--much I higher than what was normally possible previously.
 

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