OP_GET = 0
OP_PUT = 1
OP_DEL = 2
OP_ERROR = 3
NB_PORT = 5300
NB_NAME_LEN = 50 # 10
NB_VAL_LEN = 500
V4_NAME_LIMIT = 20 #4
V6_NAME_LIMIT = 5 #1
V6_GLOB_LIMIT = 3
V6_SUBNET_LIMIT = 15000
V6_IFACE_LIMIT = 20
V6_ADDR_EXPIRY = 604800 # 7 days no change expiry.
MIN_NAME_DURATION = 604800 # 7 days to migrate names.
MIN_DURATION_PENALTY = 60 # 1 min.

DO_BUMP = 1
DONT_BUMP = 0
THROW_BUMP = 2