Справочник Пользователя для Netopia 4000-Series

ting defaults to 64000, but you may modify the capacity rate if this setting will not be applicable to 
you. 

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The Default Bc (Bc also referred to as Committed Burst Size) represents the maximum amount of data 
that your Frame Relay ser vice provider agrees to transfer from a given PVC (Permanent Vir tual Circuit) 
or DLCI (Data Link Connection Identifier). This setting defaults to 64000, but you may change the 
capacity rate if necessar y. 

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The Default Be (Be also referred to as Excess Burst Size) represents the maximum amount of data 
that your Frame Relay ser vice provider will attempt to deliver to a given PVC (Permanent Vir tual Circuit) 
or DLCI (Data Link Connection Identifier). This setting defaults to 0, but you may change the capacity 
rate if necessar y. 

Note: Some Frame Relay ser vice providers allow for over-subscription of the DLCIs, which occurs when the 
total number of CIRs for all PVCs exceeds the line rate setup.

3.

Select Congestion Management Enabled and toggle to Yes or No depending on whether you use this 
selection. Press Return.

If Congestion Management is enabled, this option causes the Netopia Router to use in-bound FECNs 
(For ward Explicit Congestion Notification). This feature is designed to notify you that congestion avoidance 
procedures should be initiated where applicable for traffic in the same direction as the received frame. It 
indicates that the frame in question has encountered congested resources.

Note: The Congestion Management Enabled field will only appear if Standard or Buffered is selected as 
the option from the Tx Injection Management field.

4.

Select Maximum Tx Frame Size and press Return. The default is automatically set to a value suitable for 
encapsulating a full Ethernet packet’s transmission load; however you can change the Maximum Frame 
Size to suit your network’s transmission load. Press Return.

You are now finished configuring the Frame Relay Configuration screen. Press the Escape key to return to the 
WAN Configuration screen. If you need to configure your DLCIs, go to the next section.

If you selected None as your LMI Type then you will need to manually configure your DLCIs.

A Frame Relay DLCI is a set of parameters that tells the Netopia Router how to initially connect to a remote 
destination. 

The Netopia Router suppor ts up to 16 different Frame Relay DLCI profiles.

Each Frame Relay DLCI configuration you set up allows the Netopia Router to connect your network to another 
network that uses IP over Frame Relay.