On 17-09-2014 13:28, Eduardo Augusto Pinto wrote:
Guys, good afternoon
I'm using in my bond interfaces as active backup, in theory, should assume an
interface (or work) only when another interface is down.
But I'm just lost packets on the interface that is not being used and is generating
packet loss on bond.
What can that be?
Follow my settings bond
[root@xxxxx ~]# ifconfig bond0 ; ifconfig eth0 ; ifconfig eth1
bond0 Link encap:Ethernet HWaddr 2C:59:E5:3C:71:68
inet addr:10.104.x.x Bcast:10.104.172.255 Mask:255.255.255.0
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:38386574 errors:0 dropped:1295024 overruns:0 frame:0
TX packets:34733102 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:23626317629 (22.0 GiB) TX bytes:21028389425 (19.5 GiB)
eth0 Link encap:Ethernet HWaddr 2C:59:E5:3C:71:68
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:37091397 errors:0 dropped:0 overruns:0 frame:0
TX packets:34732869 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:23524827730 (21.9 GiB) TX bytes:21028299937 (19.5 GiB)
eth1 Link encap:Ethernet HWaddr 2C:59:E5:3C:71:68
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:1295179 errors:0 dropped:1294944 overruns:0 frame:0
TX packets:237 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:101490019 (96.7 MiB) TX bytes:90360 (88.2 KiB)
[root@xxxxx ~]#
[root@xxxxx ~]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 1000
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 2c:59:e5:3c:71:68
Slave queue ID: 0
Slave Interface: eth1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 2c:59:e5:3c:71:6c
Slave queue ID: 0
[root@xxxxx ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=10.104.x.x
NETMASK=255.255.255.0
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
BONDING_OPTS="mode=1 miimon=1000"
In /var/log/messages I have a lot martian source ....
[root@xxxxx ~]# tail -f /var/log/messages
Sep 17 13:26:38 xxxxx kernel: IPv4: martian source 10.104.172.0 from 0.0.0.0, on dev
bond0
Sep 17 13:26:38 xxxxx kernel: ll header: 00000000: ff ff ff ff ff ff 00 00 00 00 5b
00 08 00 ..........[...
Sep 17 13:26:39 xxxxx kernel: IPv4: martian source 10.104.172.0 from 0.0.0.0, on dev
bond0
Sep 17 13:26:39 xxxxx kernel: ll header: 00000000: ff ff ff ff ff ff 00 00 00 00 5b
01 08 00 ..........[...
Sep 17 13:26:39 xxxxx kernel: IPv4: martian source 10.104.172.0 from 0.0.0.0, on dev
bond0
Sep 17 13:26:39 xxxxx kernel: ll header: 00000000: ff ff ff ff ff ff 00 00 00 00 5b
00 08 00 ..........[...
Sep 17 13:26:39 xxxxx kernel: IPv4: martian source 10.104.172.0 from 0.0.0.0, on dev
bond0
Sep 17 13:26:39 xxxxx kernel: ll header: 00000000: ff ff ff ff ff ff 00 00 00 00 5b
00 08 00 ..........[...
Sep 17 13:26:39 xxxxx kernel: IPv4: martian source 10.104.172.0 from 0.0.0.0, on dev
bond0
Sep 17 13:26:39 xxxxx kernel: ll header: 00000000: ff ff ff ff ff ff 00 00 00 00 5b
01 08 00 ..........[...
Sep 17 13:26:43 xxxxx kernel: net_ratelimit: 69 callbacks suppressed
Thks ....
If memory serves, all those martians are accounted as drops. Please
check that number of drops against netstat -s output, there will be a
line for martian source drops. Hope the numbers match (at least closely).
Yet, broadcasts using such source address are not expected, are they?
Marcelo
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