Chapter 16: Dynamic Routing Protocols
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 497
Enable OSPF
The following procedure is used to enable OSPF on the C4/c CMTS.
To enable OSPF:
1. Enter the following command to give the default router an identification number:
configure router ospf vrf default router-id 1.1.1.1
Where: 1.1.1.1 is the router ID
2. By default, OSPF is disabled for all interfaces. Enabling OSPF for an interface does not affect the global enable/disable
state on the C4/c CMTS. Enter the following command to enable OSPF for an interface:
configure router
ospf [vrf <VRF>] network
<ip-
address> <inverse mask> a
rea <area-
id> Network address and area-id can be specified as either a decimal value or as an IP address. The inverse mask is also
called the wildcard mask.
3. Enter the following command to advertise routes for the locally connected interfaces (i.e. CAMs) and to redistribute
the default ospf route based on metric-types, tags, and subnets:
configure router ospf [vrf <VRF>] redistribute connected [metric {<0-16777215> | transparent}]
[metric-type <1 | 2>] [tag <1-4294967295>]
Where: metric (optional) is the metric used for redistributed route. Values 1-4294967295. Default is 1.
metric-type (optional) is the external link type associated with the default route advertised into the OSPF
routing domain. Values are 1 (internal route) or 2 (external route). Default is 2.
tag (optional) is the 32 bit decimal value that OSPF attaches to the external route. Default is 0.
4. By default, OSPF is disabled on the C4/c CMTS. Enter the following command to enable OSPF:
configure router ospf vrf default no shutdown
There is no system response if the command is successful. This is a "silent success" command.
5. Validate OSPF status:
show ip ospf
The output should indicate as follows:
Router VRF default with ID 1.1.1.1
Only cost is used when choosing among multiple AS-external-LSAs
Exit overflow interval 0 seconds
Number of external LSA 0. Checksum 0x0
Number of new originated LSAs 2
Number of received LSAs 5
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