BGP keeps flapping due to high bandwidth utilization.

[NetworkingGeek1]

Hello experts,

There is a router with interface with 10 Mbps bandwidth. It's MPLS link. Because of high bandwidth utilization of that interface on transmit direction, BGP is flapping frequently. Can I apply some QoS on interface to prioritize BGP control plane traffic? And I thought that Cisco has some default control plane packets bandwidth reservation, which should prioritize control plane traffic on the interface, even if QoS is not configured?

Thank you in advance.

[MHM Cisco World]

hi what is the model of router you use ?

[NetworkingGeek1]

Hi @MHM Cisco World  Router: ISR 2921; IOS: 15.1, it's regular IOS, not XE.