Double RJ45 port on access point

[brunot8293]

hi everybody, 

I have a question about APs: why newer APs have two RJ-45 interfaces? What is the purpose of a second port?

Thank you

[balaji.bandi]

one is for console port another one for Data for use high level, not sure what model you referring - my answer not correct, please give more information to give right input.

[brunot8293]

Thank you for your reply! 

Consider for example the MR52 AP. It has two ports 10/100/1000Base-T but a maximum aggregate frame rate of 2.5 Gbit/s.

My questiions are:

How can reach 2.5 Gbit/s of aggregate frame with only one port 1000 Base-T?

Can the two RJ45 ports be used for data? 

Thank you!

[Karsten Iwen · Accepted solution]

This is one of the APs where you can configure a port-channel between the switch and the AP. The available bandwidth is increased to 2*1Gig between Switch and AP. In reality it is extremely unlikely that you will ever hit the 1Gig limit of a single port.

[balaji.bandi]

Meraki is differnt case ( you need do port- budle in this case)

https://documentation.meraki.com/MR/Client_Addressing_and_Bridging/MR_Link_Aggregation_Configuration_Guide

[Leo Laohoo]

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@brunot8293 wrote:

I have a question about APs: why newer APs have two RJ-45 interfaces? What is the purpose of a second port?

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Sales purposes. 

Every other AP manufacturer have APs with double data ports so why can't/don't Cisco have one (and priced equally higher)? 

NOTE:  
I have several AP3700 with daily client count of >60 and I have not received any complaints.

[Scott Fella]

Just to add... the “newer” 91x0 access points only have one Ethernet port now.  However, it is an mGig port if you have an mGig capable switch or not.