https://bugs.openfabrics.org/show_bug.cgi?id=351
Summary: Routing table problem in SLES10 when using port #2
Product: OpenFabrics Linux
Version: 1.2
Platform: All
OS/Version: SLES 10
Status: NEW
Severity: major
Priority: P1
Component: IPoIB
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
There is an issue with the routing table on SLES10 when using IB port #2.
After host reboot the routing table contain two entries for 12.X.X.X !!!
One of the entries is correct and point to ib1, the other one point to ib0.
Route output:
sw087:~ # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.4.0.0 * 255.255.0.0 U 0 0 0 eth0
12.4.0.0 * 255.255.0.0 U 0 0 0 ib1
12.4.0.0 * 255.255.0.0 U 0 0 0 ib0
link-local * 255.255.0.0 U 0 0 0 eth0
11.4.0.0 * 255.255.0.0 U 0 0 0 ib0
loopback * 255.0.0.0 U 0 0 0 lo
default 10.4.0.211 0.0.0.0 UG 0 0 0 eth0
The first entry for 12.4.0.0 point to I/F ib1, so in this configuration the
ipoib over 12.4.X.X will work fine.
After restarting the ib1 I/F with the ifconfig commands, the routing table
changed (the order between the two 12.4.0.0 entries changed) and ipoib over
12.4.X.X will not work any more.
Restarting ib1 I/F:
sw087:~ # ifdown ib1
ib1 device: Mellanox Technologies MT23108 InfiniHost (rev a1)
sw087:~ # ifup ib1
ib1 device: Mellanox Technologies MT23108 InfiniHost (rev a1)
Route output:
sw087:~ # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.4.0.0 * 255.255.0.0 U 0 0 0 eth0
12.4.0.0 * 255.255.0.0 U 0 0 0 ib0
12.4.0.0 * 255.255.0.0 U 0 0 0 ib1
link-local * 255.255.0.0 U 0 0 0 eth0
11.4.0.0 * 255.255.0.0 U 0 0 0 ib0
loopback * 255.0.0.0 U 0 0 0 lo
default 10.4.0.211 0.0.0.0 UG 0 0 0 eth0
Host info:
sw087:~ # hostinfo
Name =sw087
IP =10.4.3.87
CpuNum =4
CpuVendor =GenuineIntel
CpuModel = Intel(R) Xeon(TM) CPU 3.20GHz
CpuMhz =3200.190
MemSizeKb =4047700
MachType =x86_64
KernelRev =2.6.16.21-0.8-smp
ChipSet =Intel Corporation E7520 Memory Controller Hub (rev 0c)
Os =Welcome to SUSE Linux Enterprise Server 10 (x86_64) - Kernel \r
(\l).
IBDevsNum =1
HCA0Name =mthca0
HCA0Desc =sw087 HCA-1
HCA0Type =MT23108
HCA0FWVer =3.5.0
HCA0PSID =MT_0030000001
HCA0GUIDS =NODE:0x0002c9871297bce0;SYS:0x0002c9871297bce3
HCA0Ports
=1:0x0002c9871297bce1:0x0:11.4.3.87:DOWN;2:0x0002c9871297bce2:0x0:12.4.3.87:INIT
HCA1Name =NONE
HCA1Desc =NONE
HCA1Type =NONE
HCA1FWVer =NONE
HCA1PSID =NONE
HCA1GUIDS =NONE
HCA1Ports =NONE
IBStack =/usr/local/
IBStackType =ofed
IBStackVer =OFED-1.2-20070211-1558
IBMPI =/usr/local//mpi
MST_BUILD =4.3.6
IBADM_BUILD =IBADM 2.1.0, 20060720-1410
WRITE_BW =/usr/local/bin/ib_write_bw
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