Alcatel-Lucent 7750 SR Manual page 1408

VPRN Service Configuration Commands
The default interface cost is calculated as follows:
The default reference-bandwidth is
various link speeds are as as follows:
The reference-bandwidth command assigns a default cost to the interface based on the interface
speed. To override this default cost on a particular interface, use the metric metric command in the
config>router>ospf>area>interface ip-int-name context.
The no form of the command reverts the reference-bandwidth to the default value.
Default
reference-bandwidth 100000000 — Reference bandwidth of 100 Gbps.
Parameters reference-bandwidth — The reference bandwidth in kilobits per second expressed as a decimal
integer.
super-backbone
Syntax [no] super-backbone
Context config>service>vprn>ospf
Description
This command specifies whether CE-PE functionality is required or not. The OSPF super backbone
indicates the type of the LSA generated as a result of routes redistributed into OSPF. When enabled,
the redistributed routes are injected as summary, external or NSSA LSAs. When disabled, the
redistributed routes are injected as either external or NSSA LSAs only.
Default no super-backbone
suppress-dn-bit
Syntax [no] suppress-dn-bit
Context config>service>vprn>ospf
config>service>vprn>ospf3
Description
This command specifies whether to suppress the setting of the DN bit for OSPF LSA packets
generated by this instance of OSPF on the router. When enabled, the DN bit for OSPF LSA packets
generated by this instance of the OSPF router will not be set. When disabled, this instance of the
OSPF router will follow the normal proceedure to determine whether to set the DN bit.
Default
no suppress-dn-bit
Page 1408
• 10 Mbs link default cost of 10000
• 100 Mbs link default cost of 1000
• 1 Gbps link default cost of 100
• 10 Gbps link default cost of 10
Values
1 — 1000000000
cost = reference-bandwidth bandwidth
or 100 Gbps, so the default auto-cost metrics for
100,000,000 Kbps
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7750 SR OS Services Guide