Redhat route InfiniBand problem












0














I have a system (HPC) have




  • 1 headnode (192.168.2.2)


  • 10 node and (192.168.245-254)


  • 1 NFS server (192.168.2.244).



It is my issue



My headnode can't ping to NFS server but from NFS server I can ping to headnode.



I already disable firewall in 2 PC but it still didn't work.



HeadNode
route -n (192.168.2.2)



[root@cluster ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.16.39.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 ib0
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 em1
172.16.112.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
10.10.41.0 0.0.0.0 255.255.255.0 U 0 0 0 em2
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
10.10.10.0 0.0.0.0 255.255.254.0 U 0 0 0 pem3
169.254.0.0 0.0.0.0 255.255.0.0 U 1006 0 0 ib0
169.254.0.0 0.0.0.0 255.255.0.0 U 1030 0 0 em1
0.0.0.0 10.10.10.1 0.0.0.0 UG 0 0 0 pem3


arp -a



[root@cluster ~]# arp -a
compute-0-5.local (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.41.1) at <incomplete> on em2
compute-0-0.local (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
compute-0-3.local (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
compute-0-4.local (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
compute-0-7.local (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.10.218) at f8:28:19:1f:22:33 [ether] on pem3
? (10.10.11.17) at 88:e9:fe:70:25:26 [ether] on pem3
compute-0-6.local (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
compute-0-1.local (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.10.47) at c0:cb:38:3e:72:6d [ether] on pem3
? (10.10.10.1) at 1c:df:0f:b7:11:3f [ether] on pem3
compute-0-2.local (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
rockscluster-nfs (192.168.2.244) at <incomplete> on ib0


It can't connect to IP 192.168.2.244



NFS server



route -n



[root@rockscluster-nfs ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.10.40.1 0.0.0.0 UG 100 0 0 em1
10.10.40.1 0.0.0.0 255.255.255.255 UH 100 0 0 em1
10.10.41.0 0.0.0.0 255.255.255.0 U 100 0 0 em1
192.168.2.0 0.0.0.0 255.255.255.0 U 150 0 0 ib0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0


arp -a



[root@rockscluster-nfs ~]# arp -a
? (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
gateway (10.10.40.1) at <incomplete> on em1
? (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.41.149) at <incomplete> on em1
? (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.41.223) at a0:48:1c:df:f8:86 [ether] on em1
? (10.10.41.119) at 80:18:44:e6:48:9d [ether] on em1
? (10.10.41.1) at <incomplete> on em1
? (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (10.10.11.209) at d8:9e:f3:18:39:26 [ether] on em1
? (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
? (192.168.2.2) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0








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    I have a system (HPC) have




    • 1 headnode (192.168.2.2)


    • 10 node and (192.168.245-254)


    • 1 NFS server (192.168.2.244).



    It is my issue



    My headnode can't ping to NFS server but from NFS server I can ping to headnode.



    I already disable firewall in 2 PC but it still didn't work.



    HeadNode
    route -n (192.168.2.2)



    [root@cluster ~]# route -n
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    172.16.39.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
    192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 ib0
    192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 em1
    172.16.112.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
    10.10.41.0 0.0.0.0 255.255.255.0 U 0 0 0 em2
    192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
    10.10.10.0 0.0.0.0 255.255.254.0 U 0 0 0 pem3
    169.254.0.0 0.0.0.0 255.255.0.0 U 1006 0 0 ib0
    169.254.0.0 0.0.0.0 255.255.0.0 U 1030 0 0 em1
    0.0.0.0 10.10.10.1 0.0.0.0 UG 0 0 0 pem3


    arp -a



    [root@cluster ~]# arp -a
    compute-0-5.local (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.41.1) at <incomplete> on em2
    compute-0-0.local (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    compute-0-3.local (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    compute-0-4.local (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    compute-0-7.local (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.10.218) at f8:28:19:1f:22:33 [ether] on pem3
    ? (10.10.11.17) at 88:e9:fe:70:25:26 [ether] on pem3
    compute-0-6.local (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    compute-0-1.local (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.10.47) at c0:cb:38:3e:72:6d [ether] on pem3
    ? (10.10.10.1) at 1c:df:0f:b7:11:3f [ether] on pem3
    compute-0-2.local (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    rockscluster-nfs (192.168.2.244) at <incomplete> on ib0


    It can't connect to IP 192.168.2.244



    NFS server



    route -n



    [root@rockscluster-nfs ~]# route -n
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    0.0.0.0 10.10.40.1 0.0.0.0 UG 100 0 0 em1
    10.10.40.1 0.0.0.0 255.255.255.255 UH 100 0 0 em1
    10.10.41.0 0.0.0.0 255.255.255.0 U 100 0 0 em1
    192.168.2.0 0.0.0.0 255.255.255.0 U 150 0 0 ib0
    192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0


    arp -a



    [root@rockscluster-nfs ~]# arp -a
    ? (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    gateway (10.10.40.1) at <incomplete> on em1
    ? (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.41.149) at <incomplete> on em1
    ? (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.41.223) at a0:48:1c:df:f8:86 [ether] on em1
    ? (10.10.41.119) at 80:18:44:e6:48:9d [ether] on em1
    ? (10.10.41.1) at <incomplete> on em1
    ? (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (10.10.11.209) at d8:9e:f3:18:39:26 [ether] on em1
    ? (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
    ? (192.168.2.2) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0








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      I have a system (HPC) have




      • 1 headnode (192.168.2.2)


      • 10 node and (192.168.245-254)


      • 1 NFS server (192.168.2.244).



      It is my issue



      My headnode can't ping to NFS server but from NFS server I can ping to headnode.



      I already disable firewall in 2 PC but it still didn't work.



      HeadNode
      route -n (192.168.2.2)



      [root@cluster ~]# route -n
      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface
      172.16.39.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
      192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 ib0
      192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 em1
      172.16.112.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
      10.10.41.0 0.0.0.0 255.255.255.0 U 0 0 0 em2
      192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
      10.10.10.0 0.0.0.0 255.255.254.0 U 0 0 0 pem3
      169.254.0.0 0.0.0.0 255.255.0.0 U 1006 0 0 ib0
      169.254.0.0 0.0.0.0 255.255.0.0 U 1030 0 0 em1
      0.0.0.0 10.10.10.1 0.0.0.0 UG 0 0 0 pem3


      arp -a



      [root@cluster ~]# arp -a
      compute-0-5.local (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.1) at <incomplete> on em2
      compute-0-0.local (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-3.local (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-4.local (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-7.local (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.10.218) at f8:28:19:1f:22:33 [ether] on pem3
      ? (10.10.11.17) at 88:e9:fe:70:25:26 [ether] on pem3
      compute-0-6.local (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-1.local (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.10.47) at c0:cb:38:3e:72:6d [ether] on pem3
      ? (10.10.10.1) at 1c:df:0f:b7:11:3f [ether] on pem3
      compute-0-2.local (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      rockscluster-nfs (192.168.2.244) at <incomplete> on ib0


      It can't connect to IP 192.168.2.244



      NFS server



      route -n



      [root@rockscluster-nfs ~]# route -n
      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface
      0.0.0.0 10.10.40.1 0.0.0.0 UG 100 0 0 em1
      10.10.40.1 0.0.0.0 255.255.255.255 UH 100 0 0 em1
      10.10.41.0 0.0.0.0 255.255.255.0 U 100 0 0 em1
      192.168.2.0 0.0.0.0 255.255.255.0 U 150 0 0 ib0
      192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0


      arp -a



      [root@rockscluster-nfs ~]# arp -a
      ? (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      gateway (10.10.40.1) at <incomplete> on em1
      ? (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.149) at <incomplete> on em1
      ? (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.223) at a0:48:1c:df:f8:86 [ether] on em1
      ? (10.10.41.119) at 80:18:44:e6:48:9d [ether] on em1
      ? (10.10.41.1) at <incomplete> on em1
      ? (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.11.209) at d8:9e:f3:18:39:26 [ether] on em1
      ? (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.2) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0








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      I have a system (HPC) have




      • 1 headnode (192.168.2.2)


      • 10 node and (192.168.245-254)


      • 1 NFS server (192.168.2.244).



      It is my issue



      My headnode can't ping to NFS server but from NFS server I can ping to headnode.



      I already disable firewall in 2 PC but it still didn't work.



      HeadNode
      route -n (192.168.2.2)



      [root@cluster ~]# route -n
      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface
      172.16.39.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
      192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 ib0
      192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 em1
      172.16.112.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
      10.10.41.0 0.0.0.0 255.255.255.0 U 0 0 0 em2
      192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
      10.10.10.0 0.0.0.0 255.255.254.0 U 0 0 0 pem3
      169.254.0.0 0.0.0.0 255.255.0.0 U 1006 0 0 ib0
      169.254.0.0 0.0.0.0 255.255.0.0 U 1030 0 0 em1
      0.0.0.0 10.10.10.1 0.0.0.0 UG 0 0 0 pem3


      arp -a



      [root@cluster ~]# arp -a
      compute-0-5.local (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.1) at <incomplete> on em2
      compute-0-0.local (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-3.local (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-4.local (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-7.local (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.10.218) at f8:28:19:1f:22:33 [ether] on pem3
      ? (10.10.11.17) at 88:e9:fe:70:25:26 [ether] on pem3
      compute-0-6.local (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      compute-0-1.local (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.10.47) at c0:cb:38:3e:72:6d [ether] on pem3
      ? (10.10.10.1) at 1c:df:0f:b7:11:3f [ether] on pem3
      compute-0-2.local (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      rockscluster-nfs (192.168.2.244) at <incomplete> on ib0


      It can't connect to IP 192.168.2.244



      NFS server



      route -n



      [root@rockscluster-nfs ~]# route -n
      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface
      0.0.0.0 10.10.40.1 0.0.0.0 UG 100 0 0 em1
      10.10.40.1 0.0.0.0 255.255.255.255 UH 100 0 0 em1
      10.10.41.0 0.0.0.0 255.255.255.0 U 100 0 0 em1
      192.168.2.0 0.0.0.0 255.255.255.0 U 150 0 0 ib0
      192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0


      arp -a



      [root@rockscluster-nfs ~]# arp -a
      ? (192.168.2.250) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      gateway (10.10.40.1) at <incomplete> on em1
      ? (192.168.2.253) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.248) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.149) at <incomplete> on em1
      ? (192.168.2.251) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.41.223) at a0:48:1c:df:f8:86 [ether] on em1
      ? (10.10.41.119) at 80:18:44:e6:48:9d [ether] on em1
      ? (10.10.41.1) at <incomplete> on em1
      ? (192.168.2.254) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (10.10.11.209) at d8:9e:f3:18:39:26 [ether] on em1
      ? (192.168.2.249) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.252) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.247) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0
      ? (192.168.2.2) at 48:00:00:80:fe:80:00:00:00 [infiniband] on ib0






      linux rhel route





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