<div dir="ltr"><div>Here is my bonding configuration - </div><div><br></div><div><div>modprobe bonding mode=balance-alb miimon=100</div><div>ifconfig bond0 192.168.30.3 netmask 255.255.255.0 up</div><div>ifenslave bond0 p255p1</div>
<div>ifenslave bond0 p255p2</div><div>cat /proc/net/bonding/bond0</div></div><div><br></div><div>bond0 has two interfaces p255p1 (bb:36) and p255p2 (bb:37)</div><div><br></div><div>I see tons of same src-mac (slave), dst-mac (same slave) packets, length of 0x60 with NULL payload on each interfaces - coming up to the switch.</div>
<div><br></div><div>This doesn't look normal. Has anyone seen anything like this before? Any pointers will be appreciated.</div><div><br></div><div>Thank you</div><div>Nitin</div><div><br></div><div>Drivers : </div><div>
igb: Intel(R) Gigabit Ethernet Network Driver - version 4.1.2-k<br></div><div>Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)<br></div><div><br></div><div><br></div><div>[root@localhost ~]# tcpdump -nXXvvvv -i p255p1</div>
<div>tcpdump: listening on p255p1, link-type EN10MB (Ethernet), capture size 65535 bytes</div><div>17:01:45.058184 00:25:90:c0:bb:36 > 00:25:90:c0:bb:36 Null Information, send seq 0, rcv seq 0, Flags [Command], length 46</div>
<div> 0x0000: 0025 90c0 bb36 0025 90c0 bb36 0060 0000 .%...6.%...6.`..</div><div> 0x0010: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div><div> 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div>
<div> 0x0030: 0000 0000 0000 0000 0000 0000 ............</div><div>17:01:45.058198 00:25:90:c0:bb:36 > 00:25:90:c0:bb:36 Null Information, send seq 0, rcv seq 0, Flags [Command], length 46</div><div>
0x0000: 0025 90c0 bb36 0025 90c0 bb36 0060 0000 .%...6.%...6.`..</div><div> 0x0010: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div><div> 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div>
<div> 0x0030: 0000 0000 0000 0000 0000 0000 ............</div><div>17:01:45.058200 00:25:90:c0:bb:36 > 00:25:90:c0:bb:36 Null Information, send seq 0, rcv seq 0, Flags [Command], length 46</div><div>
0x0000: 0025 90c0 bb36 0025 90c0 bb36 0060 0000 .%...6.%...6.`..</div><div> 0x0010: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div><div> 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................</div>
<div> 0x0030: 0000 0000 0000 0000 0000 0000 ............</div></div>