X670 how many LSA in LSDB?

  • 0
  • 1
  • Question
  • Updated 3 years ago
  • Answered
Hi, all!

We can confiure number of LSA in LSDB - configure ospf ase-limit number
But how we can see maximum/reccomended number of LSAs  in LSDB?

Interesting in X670.

Also where can I see this limit?
(In Release Notes I can't find this value)

Thank you!
Photo of Alexandr P

Alexandr P, Embassador

  • 12,742 Points 10k badge 2x thumb

Posted 3 years ago

  • 0
  • 1
Photo of Karthik Mohandoss

Karthik Mohandoss, Employee

  • 6,098 Points 5k badge 2x thumb
Hi Alex,

configure ospf ase-limit number {timeout seconds}
Where:
• number—Specifies the number of external LSAs that the system supports before it goes into
overflow state. A limit value of 0 disables the functionality. When the LSDB size limit is reached,
OSPF database overflow flushes LSAs from the LSDB. OSPF database overflow flushes the same
LSAs from all the routers, which maintains consistency.


This one is from 16.1 release notes.




I hope this helps.
Photo of Alexandr P

Alexandr P, Embassador

  • 12,742 Points 10k badge 2x thumb
How the LSA's divided by types?
For example - how many LSA type 1 can terminate LSDB?

Thankn you!
Photo of Karthik Mohandoss

Karthik Mohandoss, Employee

  • 6,098 Points 5k badge 2x thumb
If i understand your question right, then the answer is...
The command "configure ospf ase-limit number {timeout seconds}" would only look for the Type 5 LSA (external LSA) and when the configured limit is exceeded it would start Flushing the rest.
Photo of Alexandr P

Alexandr P, Embassador

  • 12,742 Points 10k badge 2x thumb
How many LSA's type 1,2,3,4,7 can terminate LSDB?
(EXOS support this types of LSA).
Can we configure limit for this LSA's types?

Thank you!
Photo of Grosjean, Stephane

Grosjean, Stephane, Employee

  • 13,676 Points 10k badge 2x thumb
Below the OSPFv2 external routes limit, in the RN, you will find the inter and intra-area limits, and the links limits.