Wired Intelligent Edge

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Bring performance and reliability to your network with the Aruba Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of the ArubaOS-Switch and ArubaOS-CX devices, and find ways to improve security across your network to bring together a mobile first solution.
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This thread has been viewed 23 times
  • 1.  VSX

    Posted 22 days ago
      |   view attached
    Hello, I will have situation in production as on this attached picture. I'm interested in is it possible (I know that it is not recommended by VSX design). ISL has two links (every per 10 Gbps, aggregated 20 Gbps), all trunks are 10 Gbps. On all switches I have spanning-tree mst active. How to be sure that these VLANs (200-204,207,999) will not be blocked on ISL link regarding STP loop. I have  this in my GNS 3 lab.

    I would like to hear your opinions.

    Best regards,
    Milan Babic

    Milan Babic

  • 2.  RE: VSX

    Posted 21 days ago
    Make sure your 8360 VSX core switches are set to STP priority 0 (root), and access switches to a higher number eg
    • access switch2 = STP priority 2
    • access switch3 = STP priority 3

    spanning-tree priority 2
    spanning-tree trap topology-change instance 0
    spanning-tree config-name TestLab
    spanning-tree config-revision 1​

    Richard Litchfield
    Airheads MVP 2020, 2021

  • 3.  RE: VSX

    Posted 19 days ago
    On top, STP will never set a port as "blocked" if the port is used for ISL.

    Vincent Giles