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Forum to discuss Enterprise security using HPE Aruba Networking NAC solutions (ClearPass), Introspect, VIA, 360 Security Exchange, Extensions, and Policy Enforcement Firewall (PEF).
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MTU size in AWS

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  • 1.  MTU size in AWS

    Posted Jul 08, 2022 03:27 AM
    Hi,

    I read in docs that configure mtu command is removed. We are doing a multi-region deployment and default MTU value is 9001. How can we change it to 1500?


  • 2.  RE: MTU size in AWS

    Posted Jul 08, 2022 08:36 PM
    This is handled 100% by the Azure networking subsystem. This would be a question for Microsoft. What issues are you experiencing?
    Original Message


  • 3.  RE: MTU size in AWS

    Posted Jul 11, 2022 03:48 AM
    I was looking at this post:

    https://community.arubanetworks.com/blogs/esupport1/2018/01/03/cluster-join-stuck-at-retaining-local-node-certificate

    I have the same issue but I'm also suspecting a certificate issue so need to check  that first.
    Original Message


  • 4.  RE: MTU size in AWS

    Posted 18 hours ago

    Did you ever get an answer for this? We're using AWS gateway load balancer with security appliances and are running into issues with clearpass traffic being dropped as it traverses the gateway load-balancer service and hits the appliances (since intermediate AWS infrastructure won't fragment traffic).


    Original Message