Configuring An Ospfv2 Sham Link - Cisco ASR 9000 Series Routing Configuration Manual

Configuring an OSPFv2 Sham Link

Displaying Graceful Restart Information for an OSPFv3 Instance
The following screen output shows the link state for an OSPFv3 instance:
RP/0/RSP0/CPU0:router# show ospfv3 1 database grace
ADV Router
1.1.1.1
None
2.2.2.2
None
Link (Type-8) Link States (Area 0)
ADV Router
1.1.1.1
2.2.2.2
ADV Router
1.1.1.1
2.2.2.2
ADV Router
2.2.2.2
Configuring an OSPFv2 Sham Link
This task explains how to configure a provider edge (PE) router to establish an OSPFv2 sham link connection
across a VPN backbone. This task is optional.
Before You Begin
Before configuring a sham link in a Multiprotocol Label Switching (MPLS) VPN between
provider edge (PE) routers, OSPF must be enabled as follows:
• Create an OSPF routing process.
• Configure a loopback interface that belongs to VRF and assign a IPv4 address with the host mask to it.
• Configure the sham link under the area submode.
See Enabling OSPF, on page 435
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
466
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
OSPFv3 Router with ID (2.2.2.2) (Process ID 1)
Router Link States (Area 0)
Age Seq#
1949
2007
Age Seq#
180
2007
Intra Area Prefix Link States (Area 0)
Age Seq#
180
2007
Grace (Type-11) Link States (Area 0)
Age Seq#
2007
for information on these OSPF configuration prerequisites.
Fragment ID
0x8000000e 0
0x80000011 0
Link ID Interface
0x80000006 1
0x80000006 1
Link ID Ref-lstype
0x80000006 0
0x80000006 0
Link ID Interface
0x80000005 1
Implementing OSPF
Link count Bits
1
1
PO0/2/0/0
PO0/2/0/0
Ref-LSID
0x2001 0
0x2001 0
PO0/2/0/0