limit-learning on sharing master port

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  • Updated 3 months ago
Hi there,

We've run into some problems when configuring limit-learning on load-sharing ports with lacp.
We use configure ports X vlanY limit-learning 0 action stop-learning combined with a static fdbentry as an L2 security measure. It works fine on normal ports, but something weird happens when we apply the same configuration to a sharing master port - lacp members of said sharing can start flapping sporadically. Removing limit-learning doesn't help, neither does disabling and enabling sharing on these ports. The only solution we found is that case is physically moving links do different ports and creating a new sharing there. This problem is not reproduced 100% of the time though, we have some LAGs that work fine with limit-learning. This is seen on both X460-48t with ExtremeXOS version 15.3.3.5, and X670-48x on 16.1.3.6. Is there a cure for that? Any suggestions would be most appreciated!
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Danila Dyba

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Posted 3 months ago

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Danila Dyba

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Hey all,

Haven't anyone run into this problem? As an update, here's what log looks like when the problem occurs:
07/17/2018 19:13:41.29 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:39.58 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:13:33.72 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:32.21 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:13:26.26 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:24.94 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:13:18.99 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:17.58 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:13:11.70 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:10.16 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:13:04.19 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:13:02.64 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:56.68 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:55.14 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:49.29 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:47.58 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:41.76 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:40.17 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:34.26 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:32.58 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:26.71 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:25.18 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:19.30 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:16.83 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:10.90 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:09.56 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:12:03.78 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:12:02.32 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:56.32 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:54.81 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:48.91 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:47.28 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:41.29 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:39.56 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:33.78 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:32.08 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:26.09 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:24.91 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator
07/17/2018 19:11:18.94 <Info:LACP.AddPortToAggr> Add port 20 to aggregator
07/17/2018 19:11:17.40 <Info:LACP.RemPortFromAggr> Remove port 20 from aggregator