avahi-daemon - unrequired?

[michael <cs@networkingnewsletter.org.uk>]

I seem to have messages in my SYSLOG such as 

Feb 27 12:55:43 ratty avahi-daemon[2996]: Invalid legacy unicast query
packet.
Feb 27 12:55:44 ratty avahi-daemon[2996]: Invalid legacy unicast query
packet.
Feb 27 12:55:44 ratty avahi-daemon[2996]: Recieved repsonse with invalid
source port 4034 on interface 'e
th0.0'
Feb 27 12:55:47 ratty last message repeated 4 times


but I'm unsure what 'avahi-daemon' is needed for... anybody care to
illuminate me? or can I just uninstall it?

thanks, M