Hi Team ,
We have below QOS configuration on one of the interface , Can someone explain me how this works ? With and without this configuration on the interface connecting to end device like CAMERA or PRINTER ?
auto qos trust
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
Auto QOS make life simpler again depending on use cases, below are some good explanation from cisco :
see the Camera and another device example:
Can you confirm if qos is not configured on one of the interface where the printer is connected will it have any impact ? Or will it not allow the printer to get the ip assigned from the dhcp ?
we learn mac on the interface but I don’t see ip arp on the l3 switch ..
Will this issue be due to auto qos not being configured on the interface ???
Apr 13 08:34:28.114: %DHCP_SNOOPING-5-DHCP_SNOOPING_UNTRUSTED_PORT: DHCP_SNOOPING drop message on untrusted port, message type: DHCPACK, MAC sa: 0023.047f.4c3c
On the L2 (9200 IOS-XE) switch I see this message . This 0023.047f.4c3c is learned from uplink interface Gi1/0/1 of L2 switch and belongs to svi vlan10 MAC.
And on vlan10 we have Ip helper configured , so our dhcp is on windows server .
Can you please suggest what can be checked further or any configuration change has to be done. .