Thursday, November 23, 2017

icmp-redirect Performance impact

Hi everyone,

we moved to Brocade MLXe-4 as our core routers and noticed very bad performance between vlans in on the same LAG.

In this "Router on a Stick" configuration with two 10G interfaces we got a throughput of about 46 Mbps between two Workstations.

After we disabled "icmp-redirects" global on the MLX the performance went to wirespeed. Can someone please explain this to me? I used wireshark and haven't Seen a single icmp redirect paket...

Thanks!



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