trunks between Juniper EX swtich, SRX and Cisco switch

In a mixed layer 2 networks, trunks between Juniper and Cisco are always headache, here is some tips to solve the problem:

1. set the vlan-id for default vlan
set vlans default vlan-id 1


2. set vlans default l3-interface vlan.0
eg:

vlans {
    VLAN23 {                            
        vlan-id 23;
        l3-interface vlan.23;
    }
    default {
        vlan-id 1;
        l3-interface vlan.0;
    }

3.  unit 0 {
        family ethernet-switching {
            port-mode trunk;
            vlan {
                members all;
            }
            native-vlan-id 1;
        }
    }
4.add the vlan interfaces to security zone.
  otherwise you can't ping the other side.

5. set ip address for vlan interface unit

  vlan {
        unit 0 {
            family inet {
                address 192.168.1.1/32;
            }
        }
        unit 23 {
            family inet {
                address 10.0.1.1/24;
            }
        }