Node : linux.setaoffice.com
Node Type : Intel/AMD x64(HTTPS)
Severity : critical
OM Server Time: 2016-09-27 18:35:55
Message : UXMON:bond1.1504 is down
Msg Group : OS
Application : bondmon
Object : bond
Event Type :
not_found

Instance Name :
not_found

Instruction : The ‘cat /sys/class/net/$bond/bonding/mii_status’ command shows the detail status

Please check /var/opt/OV/log/OpC/bond_mon.log for more details

The module bondmon is complaining about a network bonding interface down

root@linux:~ # /var/opt/OV/bin/instrumentation/UXMONbroker -check bondmon
Wed Sep 28 08:15:43 2016 : INFO : UXMONbondmon is running now, pid=31311
Wed Sep 28 08:15:43 2016 : Critical: bond1.1504 is down
mv: `/dev/null’ and `/dev/null’ are the same file
Wed Sep 28 08:15:43 2016 : INFO : UXMONbondmon end, pid=31311

It was showing bond1.1504 in the network bonding interfaces and no interfaces available.

root@linux:~ # ls -l /proc/net/bonding
total 0
-r–r–r– 1 root root 0 Sep 28 08:48 bond0
-r–r–r– 1 root root 0 Sep 28 08:48 bond1
-r–r–r– 1 root root 0 Sep 28 08:48 bond1.1504
-r–r–r– 1 root root 0 Sep 28 08:48 bond2

Removed bond1.1504

root@linux:~ # echo “-bond1.1504” > /sys/class/net/bonding_masters

root@linux:~ # ls -l /proc/net/bonding
total 0
-r–r–r– 1 root root 0 Sep 28 08:59 bond0
-r–r–r– 1 root root 0 Sep 28 08:59 bond1
-r–r–r– 1 root root 0 Sep 28 08:59 bond2

The configuration file for bond1.1504 was missing the parameter VLAN=yes. So added the paramter

root@linux:~ # cat /etc/sysconfig/network-scripts/ifcfg-bond1.1504
DEVICE=bond1.1504
BOOTPROT=none
ONBOOT=yes
IPADDRES=10.32.28.175
NETMASK=255.255.255.0
BONDING_OPTS=”miimon=1000 mode=active-backup”

root@linux:~ # cat /etc/sysconfig/network-scripts/ifcfg-bond0.1504
DEVICE=bond0.1504
BOOTPROT=none
ONBOOT=yes
IPADDR=10.32.17.87
NETMASK=255.255.254.0
BONDING_OPTS=”miimon=1000 mode=active-backup”
VLAN=yes

Bring the network interface up

root@linux:~ # ifup ifcfg-bond1.1504

And configured the IP and netmask shown on the configuration file

root@linux:~ # ifconfig bond1.1504 10.32.28.175 netmask 255.255.255.0

root@linux:~ # ifconfig bond1.1504
bond1.1504 Link encap:Ethernet HWaddr 6C:C2:17:30:88:88
inet addr:10.32.28.175 Bcast:10.32.28.255 Mask:255.255.255.0
inet6 addr: fe80::6ec2:17ff:fe30:8888/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1034 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:78494 (76.6 KiB) TX bytes:468 (468.0 b)

Running UXMONbroker with the module bondmon

root@linux:~ # /var/opt/OV/bin/instrumentation/UXMONbroker -check bondmon
Wed Sep 28 09:15:19 2016 : INFO : UXMONbondmon is running now, pid=25212
mv: `/dev/null’ and `/dev/null’ are the same file
Wed Sep 28 09:15:19 2016 : INFO : UXMONbondmon end, pid=25212

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