How are the Campus WINS servers configured and how does the process work?
Intervals Renewal interval - 6 days - This means that a client must
renew with wins every 6 days. The process actually starts
sooner (after half the time has expired and then at regular
intervals until successful). Extinction interval - 4 days - This means that once a record
is released (Computer shutdown), it becomes extinct in 4 days Extinction timeout - 6 days - This means that once a record
is extinct it gets scavenged (removed) from database in 6
days Verification interval - 24 days - This is the interval at
which a WINS server will verify it's entries with any of its
replication partners. So a record released from one WINS server
could take up to 34 days to be completely removed from both WINS
servers (4 + 6 + 24). 10 days to be removed from the WINS
server you are communicating with and an additional 24 days to be
removed from any replication partners.
Duplicate Registrations - When a Duplicate name is
registered, the Server sends 3 challenges to current occupant and
if no response is received, the name is released, otherwise
registration is denied.
Name Refresh - When 1/8 of TTL (6 days in this case) has
expired, the client tries to refresh every 2 minutes until ½
of TTL has expired. After that it attempts refresh with
Secondary server. Once the first successful refresh has taken
place, it refreshes at 1/2 TTL instead of 1/8.
Name Release - When client shuts down properly, it sends
a release to the Server and the server marks its entry
inactive.
Replication Parameters - Between Primary and
Secondary
Pull Replication - every 30 minutes (each server pulls any changes
from the other every 30 minutes).
Push Replication - after every 50 changes (if a server has 50
changes before the 30 minute mark, it will push changes immediately
to the other server).
IP Communications - All WINS Communications take place
on UDP port 137. If you plan on using WINS, do not block this
port for incoming or outgoing communications on your router
firewall or Personal Firewall Software (PWS)
