Hpe Aruba and loop-protect

loop-protect

this is a simple guide to enable the loop-protect feature on your Hpe/Aruba switch.

Connect to your cli and issue this command :

Show loop-protect

loop-protect

As you can see it’s disabled.

Now we can enable it per port or per vlan basic… anyway , the way that i prefer is per VLAN and, after that , we need to choose which physical port is on it

So now we enable per VLAN mode with this command:

loop-protect mode vlan

loop-protect

For example we can enable it on vlan 1 and 3 ..

loop-protect

As we can see, it’s enable only vlans 1 and 3

loop-protect

At this point, we have to assign the loop-protect on a port basics . In our case we have an 2530 with 48 port and so, this is the command:

loop-protect 1-48 receiver-action send-disable

loop-protect

Now we are ready to testing it…

This is my magic looping cable!

loop-protect

Now we can check what’s happened with the command..:

Show loop-protect

loop-protect

And we can see that port 29 is now detected and blocked.

loop-protect

that’s it.

2 Comments

  1. When I connect an HP1800 on one of those port on my 2540 and loop it, I start dropping pings on my 29 root switch and it affects all of my network, No dropped pings on my 2540 and no port shutdown. What am I missing?

    Reply
    • it seems that you have a network calibration due to STP..
      Switch to a RSTP or disable it…

      Marco

      Reply

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