It's hard to support without configuration and logging. Working with your Aruba partner or Support may be the fastest route to a solution.
If you feel the configuration is changing, make sure the switch is not cloud-managed (or at least not managed locally and through a management system like Airwave/Central). Ports should not change the tagged VLANs, nor should default routes disappear unless you have configured dynamic routing.
To learn about the ArubaOS switches, you can do an official training, get the book for the training and read it yourself, or start by watching
some videos like these.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
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Original Message:
Sent: Mar 08, 2021 03:30 PM
From: Martin Rogers
Subject: Aruba 2540 - going round in circles (and round the bend)
Hi All,
Looking for some help with an Aruba 2540 configuration, maybe more sanity check than anything. We are configuring a 2540 24 to replace an old 3com 5500. Each time we attempt the swap over something or the other isn't working or the config isn't being accepted. Ports seem to randomly tag themselves in various vlans - the port membership is different to the config we saved. The default route was there but now it isn't and when we add it back it seems to accept it (CLI doesn't error) but it doesn't show in the routing table. Vlans show as not being up, no connected interfaces, even though there is at least one one port that is tagged in all vlans flashing away. sometimes we can get inter vlan traffic running others times not, then the DHCP relay doesn't work. It is proving to be a nightmare. We use the GUI to assign port membership and the CLI to try and add the default 0000/0 route. This switch is going to be a core switch that routes between VLANS and to the router and allows DHCP relay. Not a difficult configuration. We are able to do such a config with Office connect 1920's but can only have 8 VLAN Interfaces and we need more than that hence went for the Aruba. No experience with Aruba switches other than this one, every time we look at something is different to how we left it last. Thanks for all suggestions.
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Martin Rogers
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