Hi José,
Did you try to configure it on the physical ports instead of the PO.
I think we had the same issue with the 3850, but with these switches you had to configure it on the physical ports.
David
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Hi There,
I am doing some research on the spanning-tree mechanism. I understood that the spanning-tree 802.1d can be used in combination of the RSTP 802.1w. When two switches are sending BPDU between each other they will use the legacy STP BPDU if one is configured in 802.1d and the other one is using RSTP. This to be backwards compatible.
What I was wondering about is that for the legacy spanning tree only the root bridge is sending out BPDU.
So if you are having a mix between both Rapid and legacy spanning tree is this still the case?
I suppose no, you will have BPDU from the root bridge + BPDU from all switches using RSTP, is this correct?
But how will then a STP switch send back BPDU to a RSTP switch if the STP is not the root bridge?
Thanks for the clarification.
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Hello,
Could you please check the following command on your interface.
show port-security interface fa0/7
show port-security address
Perhaps you are reaching the maximum allowed MAC address on the interface.
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Hi there, I have read and learned a lot concerning QoS. What is still unclear to me is the prioritisation mechanism. From what I understood is that there is a schedular servicing the queues. Depending on the switch model IOS, XE-OS, NX-OS there is a different algorithm running. Like DWRR, or WFQ, ... What I don't understand is how do you tell which queue should be served first. Normally you classify the interesting traffic, mark it with CoS, DSCP or qos-group, ... In the policy you assign a given bandwidth per queue. But how do you say this queue needs to be served before other queues? In most switches you have a maximum of 8 queues, so why should you have like 56possibilities with DSCP if you can only map it to 8queueus? Same with qos-groups you have more than 100 posibilities but how do you match these possibilities with your queues? Thanks for the clarification. David
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