@BPry Thanks for your response, I have asked to design a resilient solution to allow HPC devices to access the internet to upload cutomer data to the cloud. Hence the reason for Active / Active and multiple links on the inside and the outside. Yes the 4 x 10GB outside circuits would be utilised but at half B/W. For resilience they would need to be four seperate ISP's. On the inside then a QSFP link from each edge switch to each Firewall L3 link, again - resilience. i wasnt aware Active / Active is not recommended. Yes i think for this spend i will engage an SE, Many Thanks Simon
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