Hi ben
The firtst reason is the SA bytes/packets only show there is some
trafffic that use this sa , we must record and calculation the last time in
IKE processs,
and this is not accurate that based on the poll frequency. This is the major
reason , we want this timestamp is more accurately in DPD.
The second reason is thar our IKE is strongswan , it expect get that last
use time from query_sa or query_policy directly.
Thanks
Gaungming
[email protected]
From: Benoit Ganne (bganne) via lists.fd.io
Date: 2022-10-14 14:44
To: [email protected]; neale; radu.nicolau; roy.fan.zhang
Subject: Re: [vpp-dev] A question about last used timestamp in ipsec sa
As you'd have to poll SA timestamp counters anyway to check the timestamp, why
not just poll existing SA bytes/packets counters instead to see if some traffic
is going through?
Best
ben
> -----Original Message-----
> From: [email protected] <[email protected]> On Behalf Of Guangming
> Sent: Friday, October 14, 2022 8:37
> To: neale <[email protected]>; radu.nicolau <[email protected]>;
> roy.fan.zhang <[email protected]>
> Cc: vpp-dev <[email protected]>
> Subject: [vpp-dev] A question about last used timestamp in ipsec sa
>
>
>
> Hi，Neale , Radu and Fan
> Now the ipsec in VPP did not record the traffic timestamp in sa and
> spd like linux kernel . So we can not Implement the full DPD function In
> IKE control daemon that only send DPD when no traffic .
> What is the good method to add timestamp . This method should be fit to
> both sync node and async mode.
> Use a new timestamp counter or add timestamp in old couter
> ipsec_sa_counters ?
>
> struct xfrm_lifetime_cur {
> __u64 bytes;
> __u64 packets;
> __u64 add_time;
> __u64 use_time;
> };
>
>
> Thanks
> Guangming
> ________________________________
>
> [email protected]
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#22032): https://lists.fd.io/g/vpp-dev/message/22032
Mute This Topic: https://lists.fd.io/mt/94321862/21656
Group Owner: [email protected]
Unsubscribe: https://lists.fd.io/g/vpp-dev/leave/1480452/21656/631435203/xyzzy
[[email protected]]
-=-=-=-=-=-=-=-=-=-=-=-
