Forum Linux.debian/ubuntu Paquets RX "dropped" sur interface en mode "bonding"

0

8

juil.

2013

Bonjour,

Je viens de mettre en place un bonding de deux interfaces sur un serveur connecté à un switch Cisco en mode 802.3ad sous Debian Wheezy 7.1 (noyau 3.2.46 amd64).
Les cartes réseau sont des cartes Gigabit Intel I350.

Problème : ifconfig (et les outils de monitoring SNMP) fait apparaître de nombreux paquets RX en statut "dropped", ce qui de mon point de vue n'est pas normal (mais je suis loin d'être un pro en réseau !).

Pour info, voici quelques extraits de mes fichiers de configuration :

/etc/modules

 loop
 bonding
 mii

/etc/network/interfaces

 auto eth2
 iface eth2 inet manual
 bond-master bond0
 auto eth3
 iface eth3 inet manual
 bond-master bond0
 auto bond0
 iface bond0 inet static
 address 172.23.12.170
 netmask 255.255.255.0
 network 172.23.12.0
 broadcast 172.23.12.255
 gateway 172.23.12.1
 bond-mode 802.3ad
 bond-miimon 100
 bond-downdelay 200
 bond-updelay 200
 bond-lacp-rate 4
 bond-slaves none
 # dns-* options are implemented by the resolvconf package, if installed
 dns-nameservers 172.23.8.10 172.23.8.11
 dns-search mondomaine.fr

/proc/net/bonding/bond0

 Bonding Mode: IEEE 802.3ad Dynamic link aggregation
 Transmit Hash Policy: layer2 (0)
 MII Status: up
 MII Polling Interval (ms): 100
 Up Delay (ms): 200
 Down Delay (ms): 200
 802.3ad info
 LACP rate: fast
 Min links: 0
 Aggregator selection policy (ad_select): stable
 Active Aggregator Info:
 Aggregator ID: 1
 Number of ports: 2
 Actor Key: 17
 Partner Key: 308
 Partner Mac Address: 02:00:00:00:00:64
 Slave Interface: eth2
 MII Status: up
 Speed: 1000 Mbps
 Duplex: full
 Link Failure Count: 2
 Permanent HW addr: bc:30:5b:f6:b8:90
 Aggregator ID: 1
 Slave queue ID: 0
 Slave Interface: eth3
 MII Status: up
 Speed: 1000 Mbps
 Duplex: full
 Link Failure Count: 2
 Permanent HW addr: bc:30:5b:f6:b8:92
 Aggregator ID: 1
 Slave queue ID: 0

Sortie de ifconfig :

 bond0 Link encap:Ethernet HWaddr bc:30:5b:f6:b8:90 
 inet adr:172.23.12.170 Bcast:172.23.12.255 Masque:255.255.255.0
 adr inet6: fe80::be30:5bff:fef6:b890/64 Scope:Lien
 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
 RX packets:2590496 errors:0 dropped:933932 overruns:0 frame:0
 TX packets:878665 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 lg file transmission:0 
 RX bytes:301150114 (287.1 MiB) TX bytes:139621158 (133.1 MiB)
 eth2 Link encap:Ethernet HWaddr bc:30:5b:f6:b8:90 
 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
 RX packets:1010041 errors:0 dropped:8 overruns:0 frame:0
 TX packets:862494 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 lg file transmission:1000 
 RX bytes:97240781 (92.7 MiB) TX bytes:137448366 (131.0 MiB)
 eth3 Link encap:Ethernet HWaddr bc:30:5b:f6:b8:90 
 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
 RX packets:1580455 errors:0 dropped:11 overruns:0 frame:0
 TX packets:16171 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 lg file transmission:1000 
 RX bytes:203909333 (194.4 MiB) TX bytes:2172792 (2.0 MiB)
 lo Link encap:Boucle locale 
 inet adr:127.0.0.1 Masque:255.0.0.0
 adr inet6: ::1/128 Scope:Hôte
 UP LOOPBACK RUNNING MTU:16436 Metric:1
 RX packets:17 errors:0 dropped:0 overruns:0 frame:0
 TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 lg file transmission:0 
 RX bytes:2572 (2.5 KiB) TX bytes:2572 (2.5 KiB)

Extrait de dmesg:

[ 9.260649] bonding: Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
[ 9.260658] bonding: MII link monitoring set to 100 ms
[ 11.928070] ADDRCONF(NETDEV_UP): bond0: link is not ready
[ 11.931786] bonding: bond0: Adding slave eth2.
[ 12.436511] bonding: bond0: enslaving eth2 as a backup interface with a down link.
[ 12.467843] bonding: bond0: Adding slave eth3.
[ 12.816225] bonding: bond0: enslaving eth3 as a backup interface with a down link.
[ 12.842742] bonding: bond0: Setting MII monitoring interval to 100.
[ 12.842799] bonding: bond0: Setting down delay to 200.
[ 12.842839] bonding: bond0: Setting up delay to 200.
[ 12.844405] bonding: unable to update mode of bond0 because interface is up.
[ 12.853623] bonding: bond0: Ignoring invalid LACP rate value 4.
[ 12.861663] ADDRCONF(NETDEV_UP): bond0: link is not ready
[ 15.590369] ixgbe .&checktime(0000,01,00,':').0: eth2: NIC Link is Up 1 Gbps, Flow Control: RX
[ 15.675747] bonding: bond0: link status up for interface eth2, enabling it in 0 ms.
[ 15.675755] bonding: bond0: link status definitely up for interface eth2, 1000 Mbps full duplex.
[ 15.677561] ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 16.050053] ixgbe .&checktime(0000,01,00,':').1: eth3: NIC Link is Up 1 Gbps, Flow Control: RX
[ 16.075469] bonding: bond0: link status up for interface eth3, enabling it in 200 ms.
[ 16.275330] bonding: bond0: link status definitely up for interface eth3, 1000 Mbps full duplex.
[ 25.980658] bond0: no IPv6 routers present

Une idée ?
Je suis un peu sec sur le sujet, là... :-(

Merci

NdM (neox): correction de la syntaxe markdown pour mise en forme et prise en charge coloration syntaxique