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Bring performance and reliability to your network with the HPE Aruba Networking Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of your switching devices, and find ways to improve security across your network to bring together a mobile-first solution


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  • 1.  BPDUs

    Posted Dec 28, 2015 06:05 PM


    We have the following configuration:

    Switch 1 connected to WAN Firewall

    LAN Firewall connected to Switch 2

    Switch 1 is a HP Procurve 2610 and Switch 2 is a HP Procurve 2910. STP is enabled, MRSTP in both. Firewall propagates MRSTP. There is only one VLAN (default VLAN). How many BPDUS the switch 1 sends every 2 seconds? Is possible that this switch sends two different BPDUS with different port ids and different sources MACs (only different in the last character, I mean for example switch MAC address is xx:xx:xx:xx:xx:a0 and it sends one BPDU1 with source MAC xx:xx:xx:xx:xx:d0 and port id y and another BPDU2 with source MAC xx:xx:xx:xx:xx:d8 and port id z with xx:xx:xx:xx:xx the same characters). There aren directed cables between switches, I mean they are connected through the firewall.

    Best Regards and thanks in advance.