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Beginner

2820i Mobility express LAG configuration

Hi all, 

as per technote, if we want to configure LAG, 2820i is compatible with few cisco models only (3850/3650) etc. 

 

Why is that so, isnt LAG = LACP?

6 REPLIES 6
VIP Advisor

Re: 2820i Mobility express LAG configuration

Hi @illusion_rox

Kinda is. Let's say it is a subset of real Link Aggregation as it does not allow you to select mode. 

 

 

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Beginner

Re: 2820i Mobility express LAG configuration

If the only issue is mode, it should still be compatible with 2960x series ? or any other 3rd party switch supporting LACP?

VIP Advisor

Re: 2820i Mobility express LAG configuration

If you setup the switch to mode on, this should work.

 

 

 

 

 

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Beginner

Re: 2820i Mobility express LAG configuration

My confusion is, 2960x and 3650/3850 supports LACP. What does 3650/3850 supports in term of LAG that 2960x doesnt ?

Cisco Employee

Re: 2820i Mobility express LAG configuration

Hi,

 

LAG with 3rd party switches has not been tested. AP uses same IP address but different source port to do the balancing, so the switch should be able to do load balancing based on UDP port information. For more information on LAG with 3rd party switch please refer to bug CSCvf77787

Please refer: 

https://techzone.cisco.com/t5/Access-Points/LAG-on-1800-2800-3800-AP/ta-p/1007165

 

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Beginner

Re: 2820i Mobility express LAG configuration

Its not 3rd party problem. Cisco’s own 2960x series are not supporting LAG
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