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Cisco Bug: CSCvt46409 - N7k OSPF area range not advertising cost

Last Modified

Sep 01, 2020

Products (9)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 2-Slot Switch

Known Affected Releases


Description (partial)

OSPF ABR router should advertise a prefix with the cost 1000

version 7.3(4)D1(1)

interface Ethernet1/2
  ip address
  ip router ospf 1 area
  no shutdown

Nexus7000-1 # show run ospf

!Command: show running-config ospf
!Time: Wed Mar 11 00:51:14 2020

version 7.3(4)D1(1)
feature ospf

router ospf 1
  area range cost 1000

interface Ethernet1/1
  ip router ospf 1 area

interface Ethernet1/2
  ip router ospf 1 area

513E.D.03-Nexus7000-1-CALO(config-router)# show ip ospf | i
 Active (Num nets: 1) Advertise Cost configured 1000

513E.D.03-Nexus7000-1-CALO(config-router)# show ip ospf database det
        OSPF Router with ID ( (Process ID 1 VRF default)

                Summary Network Link States (Area

   LS age: 77
   Options: 0x2 (No TOS-capability, No DC)
   LS Type: Network Summary
   Link State ID: (Network address)
   Advertising Router:
   LS Seq Number: 0x80000002
   Checksum: 0xab3d
   Length: 28
   Network Mask: /24
      TOS:   0 Metric: 4 <<<<<< should be 1000

this happens only if we have the same subnet configured on an interface locally.
In other words if we have exact intra area route for configured range.
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