int parse_mac_addr(const char *token, struct ether_addr *addr);
int parse_mpls_labels(char *string, uint32_t *labels, uint32_t *n_labels);
int parse_mac_addr(const char *token, struct ether_addr *addr);
int parse_mpls_labels(char *string, uint32_t *labels, uint32_t *n_labels);