Re: Howto use agr to aggregate VPN tunnels

[BERTRAND Joël <joel.bertrand%systella.fr@localhost>]

Greg Troxel a écrit :
> My second standard advice is to run "netstat -s" and save the output to
> a file before and after each test, and diff them, to find changes in
> counters that you do not expect, as well as to look for the expected
> changes.

	OK. I have done netstat -s on all interfaces before and after a ping on 
agr0 (outgoing packets).

	I don't know how interpret diff output :

einstein# diff -u tap0.orig tap0.final
einstein# diff -u tap1.orig tap1.final
einstein# diff -u agr0.orig agr0.final
--- agr0.orig   2016-12-15 11:11:11.273990884 +0100
+++ agr0.final  2016-12-15 11:11:30.261239755 +0100
@@ -1,3 +1,3 @@
-agr0  1500  <Link>        f2:0b:a4:b7:7f:59      202     0        0 
304     0
-agr0  1500  fe80::/64     fe80::f00b:a4ff:f      202     0        0 
304     0
-agr0  1500  192.168.100/2 192.168.100.2          202     0        0 
304     0
+agr0  1500  <Link>        f2:0b:a4:b7:7f:59      202     0        0 
313     0
+agr0  1500  fe80::/64     fe80::f00b:a4ff:f      202     0        0 
313     0
+agr0  1500  192.168.100/2 192.168.100.2          202     0        0 
313     0
einstein#

	On ingoing packets, result is :

einstein# diff -u agr0.orig agr0.final
--- agr0.orig   2016-12-15 11:15:17.420389033 +0100
+++ agr0.final  2016-12-15 11:16:53.044680951 +0100
@@ -1,3 +1,3 @@
-agr0  1500  <Link>        f2:0b:a4:b7:7f:59      202     0        0 
353     0
-agr0  1500  fe80::/64     fe80::f00b:a4ff:f      202     0        0 
353     0
-agr0  1500  192.168.100/2 192.168.100.2          202     0        0 
353     0
+agr0  1500  <Link>        f2:0b:a4:b7:7f:59      232     0        0 
383     0
+agr0  1500  fe80::/64     fe80::f00b:a4ff:f      232     0        0 
383     0
+agr0  1500  192.168.100/2 192.168.100.2          232     0        0 
383     0
einstein# diff -u tap0.orig tap0.final
--- tap0.orig   2016-12-15 11:15:06.726431924 +0100
+++ tap0.final  2016-12-15 11:17:00.154048113 +0100
@@ -1 +1 @@
-tap0  1500  <Link>        f2:0b:a4:b7:7f:59      105     0        4 
 0     0
+tap0  1500  <Link>        f2:0b:a4:b7:7f:59      120     0        4 
 0     0
einstein# diff -u tap1.orig tap1.final
--- tap1.orig   2016-12-15 11:15:11.109520868 +0100
+++ tap1.final  2016-12-15 11:17:04.193562407 +0100
@@ -1 +1 @@
-tap1  1500  <Link>        f2:0b:a4:98:69:5d      104     0        4 
 0     0
+tap1  1500  <Link>        f2:0b:a4:98:69:5d      119     0        4 
 0     0
einstein#

	For me, ingoing packets revceived by tap0 and tap1 are sent to agr0, 
but not outgoing packets.

	Best regards,

	JKB