A device may receive, via a first optical supervisory channel, a first timing signal from a first network node. The first timing signal may be generated by a first clock, of the first network node, and may be used to synchronize the first clock, of the first network node, and a second clock of a second network node. The device may determine a parameter value based on the first timing signal, and may determine whether the parameter value satisfies a threshold value. The device may selectively transmit, via a second optical supervisory channel, a second timing signal to the second network node based on determining whether the parameter value satisfies the threshold value. The second timing signal may be used to synchronize the second clock, of the second network node, with the first clock of the first network node.