%OSPF-4-CFG_NBR_DEFAULT_OPT_ON_NBMA

hi,

 

R26-------R24

I am configuring two routers, both interfaces are non-broadcast. neighbor command is stated, and they formed adjacency.

but when I tried to configure neighbor "IP" cost "value", I received this error (on both sides):

*Oct 18 09:51:10.410: %OSPF-4-CFG_NBR_DEFAULT_OPT_ON_NBMA: GigabitEthernet1.246, Configured neighbor 113.113.246.26 - Ignore incompatible configured options, use default. Allowed options on NBMA interfaces are poll-interval and priority

 

although command: neighbor "IP" cost "value"  it can only be configured on NBMA networks as IOS mentioned why I tried to insert it on P2P or Broadcast networks type:

Oct 18 10:07:25.872: %OSPF-4-CFG_NBR_INVALID_NET_TYPE: Can not use configured neighbor 113.113.5.16 on GigabitEthernet1.567. Neighbor command only allowed on NBMA and P2MP networks

 

my concern is only about first error!! what does it mean exactly !!

 

BTW, I am using CSR 1000v.

 

Comments

  • Hi,

    The poll-interval option can be applied only to NBMA networks. This option is not allowed on a point-to-multipoint interface.

    ref: Cisco OSPF Command and Configuration Handbook

     

    maybe it is a bug.

     

     

  • Can you be more specific on exactly what is the problem? What is the question you need an answer to?

     

  • meaning of first error !

  • *Oct 18 09:51:10.410: %OSPF-4-CFG_NBR_DEFAULT_OPT_ON_NBMA: GigabitEthernet1.246, Configured neighbor 113.113.246.26 - Ignore incompatible configured options, use default. Allowed options on NBMA interfaces are poll-interval and priority

    It means you had a per-neighbor cost configured which is not a valid option out on a non-broadcast OSPF interface type, as on that segment there is DR election, and you cannot have per-neighbor cost as you don't peer with the neighbor but with the DR.

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