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Mon, 09 Apr 2018 04:01:59 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.6.233 with HTTP; Mon, 9 Apr 2018 04:01:59 -0700 (PDT) From: Sourabh jain Date: Mon, 9 Apr 2018 16:31:59 +0530 Message-ID: To: flent-users@flent.org Subject: [Flent-users] Effect of per host interval time (-p) on Flent tool X-BeenThere: flent-users@flent.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Flent discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7469747050463907812==" Errors-To: flent-users-bounces@flent.org Sender: "Flent-users" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - web6.sd.eurovps.com X-AntiAbuse: Original Domain - toke.dk X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - flent.org X-Get-Message-Sender-Via: web6.sd.eurovps.com: acl_c_authenticated_local_user: mailman/mailman X-Authenticated-Sender: web6.sd.eurovps.com: mailman@flent.org --===============7469747050463907812== Content-Type: multipart/alternative; boundary="001a114159a2c2882f05696855d5" --001a114159a2c2882f05696855d5 Content-Type: text/plain; charset="UTF-8" Hello All, I have observed that fping (v4.0) discards all ICMP reply if the delay is greater than per host sending interval (set using -p). flent uses fping with per host interval as 0.2 (200 ms), which is very low if netserver is far from flent client (Example RTT > 200 ms). In such case flent will not be able to generate ping results. Same problem occurs when we setup a test bed and add extra delay using netem between flent client and netserver. I think flent should handle this scenario. Thanks and Regards, Sourabh Jain --001a114159a2c2882f05696855d5 Content-Type: text/html; charset="UTF-8"
Hello All,

I have observed that fping (v4.0) discards all ICMP reply if the delay is greater than per host sending interval (set using -p).

flent uses fping with per host interval as 0.2 (200 ms), which is very low if netserver is far from flent client (Example RTT > 200 ms). In such case flent will not be able to generate ping results.

Same problem occurs when we setup a test bed and add extra delay using netem between flent client and netserver.

I think flent should handle this scenario.

Thanks and Regards,
Sourabh Jain

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