Quality and CDP problem

[simc92]

Hello, 

We have a switch connected to our operator's router. It's a 'OneAccess' router.
What could cause the switch to see itself on the port connected to the router?

SW#sh cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
                  D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
SW
                 Gig 1/0/2         131              S I   WS-C3850- Gig 1/0/2

It turns out that we've been experiencing quality problems on several sites since installing these routers, but we can't find the problem.

interface GigabitEthernet1/0/2
 description - To router -
 switchport trunk native vlan 100
 switchport trunk allowed vlan 50,60
 switchport mode trunk
 auto qos trust dscp

Thanks!

[balaji.bandi]

switch connected to our operator's router.

what model switch the CDP show C3850 is the operator switch ? you mentioned router ?

what sites having issue, this cause many reasons, like speed negotiation, MTU , so on.

also try remove below config and check

auto qos trust dscp

  Other side, you need to provide more information, like what IP address you using in the LAN, are you able to ping 8.8.8.8 with out packet loss. ?