ports/163955: input packet for interface are counted twice

[Коньков Евгений]

The following reply was made to PR ports/163955; it has been noted by GNATS.

From: =?windows-1251?B?yu7t/Oru4iDF4uPl7ejp?= <kes-kes at yandex.ru>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: ports/163955: input packet for interface are counted twice
Date: Mon, 9 Jan 2012 14:59:07 +0200

 netstat statistic shows good counters, they are not twiced
 
 # ifconfig vlan7
 vlan7: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=3<RXCSUM,TXCSUM>
         ether 00:30:67:5a:44:72
         inet 10.11.19.149 netmask 0xfffffff8 broadcast 10.11.19.151
         inet6 fe80::230:67ff:fe5a:4472%vlan7 prefixlen 64 scopeid 0x8
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: Ethernet autoselect (1000baseT <full-duplex>)
         status: active
         vlan: 7 parent interface: re0
 # netstat -iIb vlan7
 Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
 meta-up# netstat -iI vlan7 -b
 Name    Mtu Network       Address              Ipkts Ierrs Idrop     Ibytes    Opkts Oerrs     Obytes  Coll
 vlan7  1500 <Link#8>      00:30:67:5a:44:72    24222     0     0   24630387    73420     0   38598435     0
 vlan7  1500 10.11.19.144/ 10.11.19.149         24189     -     -   24267751    73287     -   37563766     -
 vlan7  1500 fe80::230:67f fe80::230:67ff:fe        0     -     -          0        0     -          0     -
 meta-up# ping -c 1 10.11.19.145
 PING 10.11.19.145 (10.11.19.145): 56 data bytes
 64 bytes from 10.11.19.145: icmp_seq=0 ttl=64 time=0.300 ms
 
 --- 10.11.19.145 ping statistics ---
 1 packets transmitted, 1 packets received, 0.0% packet loss
 round-trip min/avg/max/stddev = 0.300/0.300/0.300/0.000 ms
 # netstat -iI vlan7 -b
 Name    Mtu Network       Address              Ipkts Ierrs Idrop     Ibytes    Opkts Oerrs     Obytes  Coll
 vlan7  1500 <Link#8>      00:30:67:5a:44:72    24223     0     0   24630485    73421     0   38598533     0
 vlan7  1500 10.11.19.144/ 10.11.19.149         24190     -     -   24267835    73288     -   37563850     -
 vlan7  1500 fe80::230:67f fe80::230:67ff:fe        0     -     -          0        0     -          0     -
 meta-up# ping -c 1 10.11.19.149
 PING 10.11.19.149 (10.11.19.149): 56 data bytes
 64 bytes from 10.11.19.149: icmp_seq=0 ttl=64 time=0.033 ms
 
 --- 10.11.19.149 ping statistics ---
 1 packets transmitted, 1 packets received, 0.0% packet loss
 round-trip min/avg/max/stddev = 0.033/0.033/0.033/0.000 ms
 # netstat -iI vlan7 -b
 Name    Mtu Network       Address              Ipkts Ierrs Idrop     Ibytes    Opkts Oerrs     Obytes  Coll
 vlan7  1500 <Link#8>      00:30:67:5a:44:72    24223     0     0   24630485    73421     0   38598533     0
 vlan7  1500 10.11.19.144/ 10.11.19.149         24191     -     -   24267919    73288     -   37563850     -
 vlan7  1500 fe80::230:67f fe80::230:67ff:fe        0     -     -          0        0     -          0     -
 
 but:
 is it right that input packet and octets are counted and no counts for
 output when dst is localhost?