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Configuration
3-47
9123-A2-GB20-10
July 2000
Table 3-10. Management PVC Options (2 of 3)
Intf Subnet Mask
Possible Settings: Node-Subnet-Mask, Calculate, Special (
nnn
.
nnn
.
nnn
.
nnn
)
Default Setting: Node-Subnet-Mask
Specifies the subnet mask associated with the IP address that is needed to access the
unit when the management PVC is providing connectivity to an external IP network
(through frame relay) that requires a specific subnet mask for the interface.
Node-Subnet-Mask – Uses the
Interface
IP Subnet contained in the Node-Subnet
Mask configuration option (see Table 3-9, Node IP Options).
Calculate – Calculates the subnet mask created by the IP protocol based on the class
of the IP address (Class A: 255.000.000.000, Class B: 255.255.000.000, or
Class C: 255.255.255.000). Cannot be displayed or edited.
Special (000.000.000.000 – 255.255.255.255) – Allows you to edit/display the subnet
mask for the management PVC when the subnet mask is different for this interface. A
text field displays where you can enter the subnet mask for this unit’s management
PVC.
Set DE
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whether frames (packets) sent on a management PVC have the Discard
Eligible (DE) bit set. This bit is used by the network to prioritize which frames to discard
first during periods of network congestion. This allows management traffic to be viewed
as lower priority than customer data.
Enable – Sets the DE bit to one on all frames sent on the management PVC.
Disable – Sets the DE bit to zero on all frames sent on the management PVC. This is
the recommended setting, particularly for NSPs providing a managed network service.
Primary Link
Possible Settings: Net1-FR1, Port-1, Clear
Default Setting: Initially blank; no default.
Specifies the frame relay interface to use for this management PVC. The interface
selected must have at least one DLCI (or DLCI with EDLCI) defined, which is not part of
a PVC connection or already assigned as a management PVC.
Net1-FR1 – Specifies that the network interface be used in the connection.
Port-1 – Specifies that the frame relay link on the user data port be used in the
connection.
Clear – Clears the link and the DLCI field, and suppresses the EDLCI field if the DLCI
was multiplexed.