Transitory means that the session has not been fully established.
Transitory (wait-closed) means the session has been established and then closed
and it’s in transitory timeout, after which it will move to transitory
(closed). Sessions in this state are not eligible for freeing.
Transitory (close
Testing with 30 ip addresses (users) opening around 300 sessions each.
When using vpp-20.01 + fixes by you and Filip (before the port overloading
patches), total sessions and total transitory sessions were much smaller
(around 15062).
on vpp-20.05 with port overloading
NAT44 pool addresses:
130.
Hi Klement,
Got it.
Sorry one more question :)
I did another test and I noticed that tcp transitory sessions increase
rapidly when I create new sessions from new internal ip address really fast
(without delay). for example:
tcp sessions are never stopped, so tcp transitory sessions should be 0 a
Hi Carlito,
For ED NAT it doesn’t, as ED NAT no longer has any “user” concept. The code for
different flavours of NAT needs to be split and polished anyway. Idea is to
have data/code/APIs separate where appropriate.
Thanks,
Klement
> On 2 Jun 2020, at 20:31, Carlito Nueno wrote:
>
> Hi Kleme
Hi Klement,
Really appreciate the detailed explanation! That makes sense and I could
see that behavior from my tests.
Last question: does "max translations per user" matter any more because the
concept of user doesn't exist with new NAT?
max translations: 400
max translations per user: 500
>
Hi,
as you can see almost all of NAT sessions are timed out. NAT will automatically
free and reuse them when needed again.
this line:
> udp LRU min session timeout 5175 (now 161589)
hints whether immediate reuse is possible. Minimum session timeout in the LRU
list for UDP sessions is 5175, whil
Hi all,
I am using vpp v20.05 and running NAT44 in end-point dependent mode.
To test NAT, I created 50k tcp and udp sessions and ran packets for 5 mins.
Then I stopped the test.
As soon as the test is stopped, tcp established sessions is 0, tcp
transitory sessions increase and all of the tcp ses
