Three CPE710, SG2210XMP-M2 and RSTP
This is a follow on from the post below,
https://community.tp-link.com/en/business/forum/topic/854432
Hi,
I am writing to request technical assistance regarding a network issue I am experiencing with my CPE710 units after configuring RSTP on my SG2210XMP-M2 1.0 switch. All devices are currently running on the latest firmware.
My setup consists of three CPE710 units: one acting as an Access Point (CPE710 v1unit 1) and two acting as Clients. The first client (CPE710 v2 unit 2) is located 400m from the AP, and the second client (CEP710 v1 unit 3) is located 700m away.
The SG2210XMP-M2 switch is connected to the furthest client (CPE710 unit 3). The primary connection is via fiber on Port 9, while the CEP710 is connected to Port 1.
Problem: When I connect this CPE710 unit to Port 1, the other client (CPE710 unit 2) loses its internet connection. While CPE710 unit 2 remains connected to the AP (CPE710 v1unit 1) and the internal network, it and all devices behind it lose external internet access.
I have followed the configuration guide and attached my current RSTP settings for your review. Could you please let me know if there is a specific setting I may have overlooked or if there is a known conflict with this configuration?
FYI - When the CPE710 is connected above on P1 it does say blocking .
Thank you for your help.
Cheers.Dave
Hi @Nesswill
How many switches did you install? If there is only one, RSTP will not take effect. Additionally, the suggestion I provided was to establish a failover between two sites. like below:
If you have three sites that require this configuration, you will need to set up two sets of wireless bridges. In the current setup, having two backup links occupying the same port on SW1 would cause issues during operation. Like below:
In summary, you will need: 3 switches and 4 CPE units. Let me know if you have any other confusion. Thanks.
Thank you for your reply. I have attached an updated drawing for your review.
To confirm the setup, all cameras and smart devices are either connected directly to the switches or via Wi-Fi. The PoE Wi-Fi access points are also plugged directly into the switches.
Given this configuration, do you agree that the issue I described should not be occurring?
As a reminder, when I connect CPE710 unit 3 (client) to Port 1 (on the SG2210XMP-M2 1.0), the second client (CPE710 unit 2 on the ES205GP 1.0) loses its internet connection. While the second unit remains connected to the access point (CPE710 unit 1) and the internal network, it and all devices behind it lose external internet access.
I look forward to your thoughts on what might be causing this conflict.
Cheers, Dave.
Hi @Nesswill
Thanks for the clarification.
Yes, it's as expected.
In this topology, once the third CPE is connected, a loop forms. The configured RSTP will take effect, blocking this link (I’ve drawn two red crosses on the blocked line.)
and, consequently, Unit 2’s external network access.
This wireless link will only come back online after the fiber is disconnected. This is what I meant by the backup link being inactive under normal operation.
So the CPE unit2 won't work with this installation. You can configure the CPE_2 as access point mode, and plug it into another port of switch_1.
Sorry maybe i misunderstand, should it not be like the drawing below when the fibre goes down? Otherwise CPE3 would not connect to CPE1 to get internet.
In this topology, once the third CPE is connected, a loop forms. Yes The configured RSTP will take effect, blocking this link (I’ve drawn two red crosses on the blocked line.) If that was the case i would have no connection to the internet, and that's not how it works.
and, consequently, Unit 2’s external network access. Why as if it did i would have no internet on CPE710 unit3 but i do.
This wireless link will only come back online after the fiber is disconnected.?? This is what I meant by the backup link being inactive under normal operation.
So the CPE unit2 won't work with this installation. Why as CPE3 does? You can configure the CPE_2 as access point mode, and plug it into another port of switch_1. No as its along way from Switch1. That's why i have the CPE710!
Problem: When I connect this CPE710 unit to Port 1, the other client (CPE710 unit 2) loses its internet connection but not CPE710 unit3. While CPE710 unit 2 remains connected to the AP (CPE710 v1unit 1) and the internal network, it and all devices behind it lose external internet access.
Hi @Nesswill
My diagram shows the situation when the fiber link is up. Your diagram depicts the scenario when the fiber is down. Both are correct.
So, do you have three sites in total? Based on the following topology, you need to be able to continuously access the devices at Site 2 from Site 3. Therefore, when the fiber is disconnected, you hope to access those cameras via the CPE wireless bridge; is that correct?
