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Lesani
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getting lots of "loop" logs on the port that my cAP is connected to

Fri Dec 09, 2022 12:59 am

getting
sfp-sfpplus10: bridge port received packet with own address as source address (#mac of my cAP AC#), probably loop
every 5 seconds in my log.

I have one single cable running directly from Port 10 to my cAP AC "ETH1 PoE In" port.
Nothing is connected to ETH2
I have a mAP (Lite I think) connected to Port 6

both mAP (?Lite) and cAP AC are provisioned from my main router (CRS326-24S+2Q+) usinc CAPsMAN

What would you need to diagnose this issue?
 
sindy
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Re: getting lots of "loop" logs on the port that my cAP is connected to

Sat Dec 10, 2022 9:14 pm

As the CRS326 complains about own address as the source address of a received frame, the most likely explanation is that the bridge (or the sfp-sfpplus10 interface itself) on the CRS has the same MAC address like the cAP ac. One possibility is a mistake in production, a more likely possibility is a misconfiguration (you can manually change IP addreses of Ethernet ports as well as of the bridge). So I'd check this as the first thing.
 
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Ca6ko
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Re: getting lots of "loop" logs on the port that my cAP is connected to  [SOLVED]

Sat Dec 10, 2022 9:59 pm

The most common mistake in misconfiguring the capsman.
A loop occurs between the physical ether1 interface and the virtual CAP on the access point.
Remove the inactive wlan1 interface on the CAP from the bridge.
 
Lesani
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Re: getting lots of "loop" logs on the port that my cAP is connected to

Fri Dec 23, 2022 11:38 pm

Thanks! For whatever reason I wasn't subscribed to this topic and thus thought noone had answered, I have removed the inactive wlan1 and wlan2 connections from the bridge, and the messages have disappeared. Now as a side effect my cap doesn't have an IP address anymore, but I can still talk to it usinc the MAC. sufficient for me at this time
 
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Ca6ko
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Re: getting lots of "loop" logs on the port that my cAP is connected to

Mon Dec 26, 2022 11:13 pm

Now as a side effect my cap doesn't have an IP address anymore,
You have two options
1. Fix the DHCP client settings to the correct ones.
2. Assign the address manually

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