Apr 29 08:13:43 tstack-centos5 avahi-daemon[2467]: Joining mDNS multicast group on interface eth0.IPv4 with address 10.1.10.62
 key  59:59                                                            ^                                                                     
 sym  59:63                                                             ^--^                                                                 mDNS
pair  59:63                                                             ^--^                                                                 mDNS
 key  93:93                                                                                              ^                                   
 sym  93:102                                                                                              ^-------^                          eth0.IPv4
pair  93:102                                                                                              ^-------^                          eth0.IPv4
 key 116:116                                                                                                                    ^            
ipv4 116:126                                                                                                                     ^--------^  10.1.10.62
pair 116:126                                                                                                                     ^--------^  10.1.10.62
msg         :Joining mDNS multicast group on interface eth0.IPv4 with address 10.1.10.62
format      :Joining # multicast group on interface # with address #
{
    "col_0": "mDNS",
    "col_1": "eth0.IPv4",
    "col_2": "10.1.10.62"
}