Number of OSPF processes

[Marks Maslovs]

Hi!

I would like to know are there any limitations in number of OSPF processes in IOS-XR, especially on ASR9010 platform?

  Active Packages:
    disk0:asr9k-mini-px-4.3.4
    disk0:asr9k-fpd-px-4.3.4
    disk0:asr9k-doc-px-4.3.4
    disk0:asr9k-mpls-px-4.3.4
    disk0:asr9k-services-px-4.3.4
    disk0:asr9k-k9sec-px-4.3.4
    disk0:asr9k-px-4.3.4.sp2-1.0.0
    disk0:asr9k-px-4.3.4.CSCuh93866-1.0.0
    disk0:asr9k-px-4.3.4.CSCui28202-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo16209-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo17130-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo53524-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo84606-1.0.0
    disk0:asr9k-px-4.3.4.CSCun32418-1.0.0
    disk0:asr9k-px-4.3.4.CSCum44940-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo78473-1.0.0
    disk0:asr9k-px-4.3.4.CSCuo68417-1.0.0
 

Now, configuring 11th OSPF process, system throws following error:

router ospf test
!!% 'CfgMgr' detected the 'fatal' condition 'This configuration has not been verified and can not be accepted by the system.'
 

Thanx in advance!

[Marks Maslovs · Accepted solution]

Have found some info.

https://www.mail-archive.com/cisco-nsp@puck.nether.net/msg46379.html

the number of OSPF processes is finite (max 10, but best to not exceed 4), so 
please configure the VRF PE-CE routing instances within the same process (which 
is different from IOS where you would set up distinct "router ospf ..." per 
vrf). A common deployment is to use two processes: One as the core IGP, and one 
for all VRFs.

[smilstea · Accepted solution]

Spot on!

Yep 10 is the max for v2 and v3, but 4 is the max recommended.

This is different from IOS where we use a separate instance per VRF, instead use multiple VRF configurations under the same OSPF process.

Sam

[Marks Maslovs]

Thanx!