[j-nsp] EX4600 : Ping problem

[deloin.robert at laposte.net]

Hello, 

I have 2 EX4600 switchs. 
They have the same symetric configurations: 


SWITCH EX4600-1                        SWITCH EX4600-2 

interfaces {                           interfaces { 
  xe-0/0/1 {                             xe-0/0/1 { 
    unit 0 {                               unit 0 { 
      family ethernet-switching {            family ethernet-switching { 
        interface-mode access;                 interface-mode access; 
        vlan {                                 vlan { 
          members vlan-RESEAUX;                  members vlan-RESEAUX; 
        }                                      } 
        storm-control default;                 storm-control default; 
      }                                      } 
    }                                      } 
  }                                      }
 
  irb {                                  irb { 
    unit 0 {                               unit 0 { 
      family inet {                          family inet { 
        address 10.101.0.4/16;                 address 10.101.0.5/16; 
      }                                      } 
    }                                      } 
  }                                      } 
}                                      } 


routing-options {                      routing-options { 
  static {                               static { 
    route 0.0.0.0/0 next-hop 10.101.0.1;   route 0.0.0.0/0 next-hop 10.101.0.1; 
  }                                      } 
}                                      } 


vlans {                                vlans { 
  default {                              default { 
    vlan-id 1;                             vlan-id 1; 
  }                                      } 

  vlan-RESEAUX {                         vlan-RESEAUX { 
    vlan-id 98;                            vlan-id 98; 
    l3.interface irb.0;                    l3.interface irb.0; 
  }                                      } 
}                                      } 

I put an optic fiber between xe-0/0/1 from a switch and xe-0/0/1 from the other switch.
And I can't ping the @ 10.101.0.3 and 10.101.0.4 from each switchs.
I obtain :
root at EX4600-01# run ping 10.101.0.3
PING 10.101.0.3 (10.101.0.3): 56 data bytes
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
the same for the other.

Can you help me. Can you tell me where is the mistake, or what I forget ?

Thank you !