rac_grid自检出现网络问题

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环境：Cent0S 6.4 64bit、grid 64bit

自检出现“TCP connectivity of subnet”问题。

【问题】
手工进行grid自检，报出如下错误：
[grid@xzxt1 grid]$ ./runcluvfy.sh stage -pre crsinst -n xzxt1,xzxt2 -fixup -verbose


    ......  
    ......  
    Check: Node connectivity of subnet "192.168.56.0"  
      Source                          Destination                     Connected?        
      ------------------------------  ------------------------------  ----------------  
      xzxt2[192.168.56.31]            xzxt1[192.168.56.30]            yes               
    Result: Node connectivity passed for subnet "192.168.56.0" with node(s) xzxt2,xzxt1  
      
      
    Check: TCP connectivity of subnet "192.168.56.0"  
      Source                          Destination                     Connected?        
      ------------------------------  ------------------------------  ----------------  
      xzxt1:192.168.56.30             xzxt2:192.168.56.31             failed            
      
    ERROR:   
    PRVF-7617 : Node connectivity between "xzxt1 : 192.168.56.30" and "xzxt2 : 192.168.56.31" failed  
    Result: TCP connectivity check failed for subnet "192.168.56.0"  
      
    Check: Node connectivity of subnet "10.10.10.0"  
      Source                          Destination                     Connected?        
      ------------------------------  ------------------------------  ----------------  
      xzxt2[10.10.10.91]              xzxt1[10.10.10.90]              yes               
    Result: Node connectivity passed for subnet "10.10.10.0" with node(s) xzxt2,xzxt1  
      
    Check: TCP connectivity of subnet "10.10.10.0"  
      Source                          Destination                     Connected?        
      ------------------------------  ------------------------------  ----------------  
      xzxt1:10.10.10.90               xzxt2:10.10.10.91               failed            
      
    ERROR:   
    PRVF-7617 : Node connectivity between "xzxt1 : 10.10.10.90" and "xzxt2 : 10.10.10.91" failed  
    Result: TCP connectivity check failed for subnet "10.10.10.0"  
      
    Interfaces found on subnet "192.168.56.0" that are likely candidates for VIP are:  
    xzxt2 eth0:192.168.56.31  
    xzxt1 eth0:192.168.56.30  
      
    WARNING:   
    Could not find a suitable set of interfaces for the private interconnect  
    Checking subnet mask consistency...  
    Subnet mask consistency check passed for subnet "192.168.56.0".  
    Subnet mask consistency check passed for subnet "10.10.10.0".  
    Subnet mask consistency check passed.  
      
    Result: Node connectivity check failed  
      
    Checking multicast communication...  
      
    Checking subnet "192.168.56.0" for multicast communication with multicast group "230.0.1.0"...  
    PRVG-11134 : Interface "192.168.56.31" on node "xzxt2" is not able to communicate with interface "192.168.56.31" on node "xzxt2"  
    PRVG-11134 : Interface "192.168.56.31" on node "xzxt2" is not able to communicate with interface "192.168.56.30" on node "xzxt1"  
    PRVG-11134 : Interface "192.168.56.30" on node "xzxt1" is not able to communicate with interface "192.168.56.31" on node "xzxt2"  
    PRVG-11134 : Interface "192.168.56.30" on node "xzxt1" is not able to communicate with interface "192.168.56.30" on node "xzxt1"  
    Checking subnet "192.168.56.0" for multicast communication with multicast group "224.0.0.251"...  
    PRVG-11134 : Interface "192.168.56.31" on node "xzxt2" is not able to communicate with interface "192.168.56.31" on node "xzxt2"  
    PRVG-11134 : Interface "192.168.56.31" on node "xzxt2" is not able to communicate with interface "192.168.56.30" on node "xzxt1"  
    PRVG-11134 : Interface "192.168.56.30" on node "xzxt1" is not able to communicate with interface "192.168.56.31" on node "xzxt2"  
    PRVG-11134 : Interface "192.168.56.30" on node "xzxt1" is not able to communicate with interface "192.168.56.30" on node "xzxt1"  
    Checking subnet "10.10.10.0" for multicast communication with multicast group "230.0.1.0"...  
    PRVG-11134 : Interface "10.10.10.91" on node "xzxt2" is not able to communicate with interface "10.10.10.91" on node "xzxt2"  
    PRVG-11134 : Interface "10.10.10.91" on node "xzxt2" is not able to communicate with interface "10.10.10.90" on node "xzxt1"  
    PRVG-11134 : Interface "10.10.10.90" on node "xzxt1" is not able to communicate with interface "10.10.10.91" on node "xzxt2"  
    PRVG-11134 : Interface "10.10.10.90" on node "xzxt1" is not able to communicate with interface "10.10.10.90" on node "xzxt1"  
    Checking subnet "10.10.10.0" for multicast communication with multicast group "224.0.0.251"...  
    PRVG-11134 : Interface "10.10.10.91" on node "xzxt2" is not able to communicate with interface "10.10.10.91" on node "xzxt2"  
    PRVG-11134 : Interface "10.10.10.91" on node "xzxt2" is not able to communicate with interface "10.10.10.90" on node "xzxt1"  
    PRVG-11134 : Interface "10.10.10.90" on node "xzxt1" is not able to communicate with interface "10.10.10.91" on node "xzxt2"  
    PRVG-11134 : Interface "10.10.10.90" on node "xzxt1" is not able to communicate with interface "10.10.10.90" on node "xzxt1"  
    ......  
    ......  

【解决】
[iyunv@xzxt1 network-scripts]# vi ifcfg-eth0
--去掉GATEWAY=192.168.56.1
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.56.30
NETMASK=255.255.255.0

[iyunv@xzxt1 network-scripts]# vi ifcfg-eth1
--去掉GATEWAY=10.10.10.1
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.10.10.90
NETMASK=255.255.255.0


重启服务器后，再次自检此问题不再出现。