A network device, comprising: a switching fabric; a packet processor connected to the switching fabric; and one or more processors configured to: detect a reduced switching fabric bandwidth due to switching fabric degradation of the switching fabric; allocate the reduced switching fabric bandwidth to one or more interfaces of the packet processor; determine a first maximum reservable bandwidth for an interface of the one or more interfaces, the first maximum reservable bandwidth for the interface being an amount of bandwidth that the interface is capable of handling of the reduced switching fabric bandwidth; identify a reserved bandwidth for the interface; determine an unreserved bandwidth for the interface based on the first maximum reservable bandwidth and the reserved bandwidth; advertise the unreserved bandwidth, for the interface, to a neighbor network device that communicates with the network device via the interface; and provide an instruction, to the neighbor network device, that the unreserved bandwidth is a symmetric unreserved bandwidth, for the neighbor network device to update a second maximum reservable bandwidth associated with the neighbor network device. a switching fabric; a packet processor connected to the switching fabric; and one or more processors configured to: detect a reduced switching fabric bandwidth due to switching fabric degradation of the switching fabric; allocate the reduced switching fabric bandwidth to one or more interfaces of the packet processor; determine a first maximum reservable bandwidth for an interface of the one or more interfaces, the first maximum reservable bandwidth for the interface being an amount of bandwidth that the interface is capable of handling of the reduced switching fabric bandwidth; identify a reserved bandwidth for the interface; determine an unreserved bandwidth for the interface based on the first maximum reservable bandwidth and the reserved bandwidth; advertise the unreserved bandwidth, for the interface, to a neighbor network device that communicates with the network device via the interface; and provide an instruction, to the neighbor network device, that the unreserved bandwidth is a symmetric unreserved bandwidth, for the neighbor network device to update a second maximum reservable bandwidth associated with the neighbor network device. detect a reduced switching fabric bandwidth due to switching fabric degradation of the switching fabric; allocate the reduced switching fabric bandwidth to one or more interfaces of the packet processor; determine a first maximum reservable bandwidth for an interface of the one or more interfaces, the first maximum reservable bandwidth for the interface being an amount of bandwidth that the interface is capable of handling of the reduced switching fabric bandwidth; identify a reserved bandwidth for the interface; determine an unreserved bandwidth for the interface based on the first maximum reservable bandwidth and the reserved bandwidth; advertise the unreserved bandwidth, for the interface, to a neighbor network device that communicates with the network device via the interface; and provide an instruction, to the neighbor network device, that the unreserved bandwidth is a symmetric unreserved bandwidth, for the neighbor network device to update a second maximum reservable bandwidth associated with the neighbor network device.