Product

Kodak^® Prinergy^® Connect^™ versions 2.3, 3.x, and 4.x

Operating system

• Microsoft^® Windows^® 2000 Server
• Microsoft Windows Server^® 2003

Symptoms

On a Microsoft Windows XP computer that is in a Local Area Network (LAN) with firewall logging enabled, some User Datagram Protocol (UDP) packets using port 1100 appear in the %systemroot%\pfirewall.log file as being dropped.

Although the sending of UDP packets has little impact on network performance, the customer wants to stop the broadcasts.

Sample log entry
2008-04-23 08:55:45 DROP UDP 10.50.10.21 10.50.255.255 1032 1100 141 - - - - - - - RECEIVE
2008-04-23 08:55:48 DROP UDP 10.50.10.21 10.50.255.255 1032 1100 141 - - - - - - - RECEIVE
2008-04-23 08:55:51 DROP UDP 10.50.10.21 10.50.255.255 1032 1100 141 - - - - - - - RECEIVE

Cause

The DoubleTake^® software sends out a UDP packet over port 1100 every three seconds. This UDP packet is known as the DoubleTake heartbeat and is used to broadcast the existence of the DoubleTake server to other DoubleTake servers, clients, and management consoles.

Solution

The DoubleTake heartbeat can be turned off using the DoubleTake Management Console.

Important: If you disable the DoubleTake heartbeat, DoubleTake no longer detects servers automatically. You must manually add servers to the Management Console and to the Failover Control Center.

Disabling the DoubleTake heartbeat

1. Select Start > Programs > Double-Take > Management Console to start the DoubleTake Management Console (DTMC).
2. Right-click the server and select Properties.
3. On the Network tab, in the Time between Heartbeats box, type 0.
4. Click OK.
5. Restart the DTMC.

The DoubleTake servers no longer appear in the Auto-Discovered Servers list. You must manually add each server to the DTMC.

DoubleTake also does not detect the target and monitor servers automatically in the Failover Control Center. You must manually add each server to the FCC.

Manually adding servers to the DoubleTake Management Console

1. Select Start > Programs > Double-Take > Management Console to start the DoubleTake Management Console (DTMC).
2. Right-click the Double-Take Servers folder and select New > Server.
3. In the Insert Server box, type the name of the primary server.
4. Click OK.
5. Restart the DTMC.

The servers that you added manually are listed.
6. Repeat the procedure in the DTMC on all servers, including the failover server, and for each user account. If the site has job data replication, also perform the procedure on the tertiary server and the backup tertiary.

Manually adding target and monitor servers to the Failover Control Center

1. Select Start > Programs > Double-Take > Failover Control Center to start the DoubleTake Failover Control Center (FCC).
2. Click Add Target.
3. Type the name of the backup server.
4. Click Login.

The monitored server appears under Monitored Machines.
Note: You must perform this procedure every time you restart the FCC.
Tip: Keep the FCC running during normal operations.

See also

Keywords

hot standby (EPM+), networking

Technical contact(s)

Submitted by

Date submitted

24 Apr 2008