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COM3000 Integrator’s Installation Manual
This screen provided information for the state and settings of each port on the switch.
Verify that the port connected displays a green link light as shown in the figure below.
Flow Control
Some switches will use a flow control that allows the switch to request a slower data rate if the buffers start to
fill. Checking the flow control box will allow the COM400 to respond to these requests. We recommend enabling
flow control on all ports.
Advertised Port Speed
Informational
The 10G ports “advertise speeds between 100M and 10G. If your switch is having problems auto negotiate the
connection, you can shut off advertised speeds above the rated bandwidth of your switch port.
MTU
Informational
COM51 maximum transmission units (MTU) is 1500. Some external switches may prefer the COM400 switch
settings to be set to a matching MTU (Frame Size) setting. The lowest MTU setting available in the COM400
switch is 1580 as shown below on port 11.
7.7 CHANGING THE CHASSIS MANAGEMENT IP ADDRESS (OPTIONAL)
Making changes in this area can affect system communication. Proceed with caution.
Management IP address should only be changed when it is necessary to manage the entire system from a
different subnet. The IP address of all COM51 cards will need to be changed to the same subnet as the chassis.
Change the COM51 card IP address and add an alternate IP address for the QAM before proceeding.
To change the IP address used to access the COM400 chassis navigate to Configuration->System->IP, as shown
below:
Click on Add Interface
Set the following:
VLAN = 2
Fallback =1
IP address = new management IP address (for this example we will use 10.0.0.251)
Mask Length = 16
Click on Save
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