Techniques for routing communication sessions are described. According to various embodiments, a set of routing paths are available for routing a communication session across a network. For instance, the routing paths represent Label Switched Paths (LSPs) across a Multi-Protocol Label Switching (MPLS) network. According to various embodiments, attributes of a communication session are leveraged to identify a routing path for routing the communication session. According to various embodiments, performance degradation in a communication session across a particular routing path is detected such that a replacement routing path is selected.