{
  "name": "交换机VLAN实验",
  "description": "2台S5700交换机+PC2+MateBook2+MatePad2，VLAN10/20混合分布与Trunk级联",
  "devices": [
    {"id":"sw1","type":"switch","model":"S5700","name":"SW1","position":{"x":200,"y":160},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"","vlan":10,"portMode":"access"},{"name":"GE0/0/2","ip":"","vlan":10,"portMode":"access"},{"name":"GE0/0/3","ip":"","vlan":20,"portMode":"access"},{"name":"GE0/0/4","ip":"","vlan":0,"portMode":"trunk"}],"vlans":[{"id":10,"name":"Sales","ports":["GE0/0/1","GE0/0/2"]},{"id":20,"name":"Engineering","ports":["GE0/0/3"]}],"routes":[],"config":"VLAN10: Sales, VLAN20: Engineering, GE0/0/4: Trunk"},
    {"id":"sw2","type":"switch","model":"S5700","name":"SW2","position":{"x":440,"y":160},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"","vlan":20,"portMode":"access"},{"name":"GE0/0/2","ip":"","vlan":20,"portMode":"access"},{"name":"GE0/0/3","ip":"","vlan":10,"portMode":"access"},{"name":"GE0/0/4","ip":"","vlan":0,"portMode":"trunk"}],"vlans":[{"id":10,"name":"Sales","ports":["GE0/0/3"]},{"id":20,"name":"Engineering","ports":["GE0/0/1","GE0/0/2"]}],"routes":[],"config":"VLAN10: Sales, VLAN20: Engineering, GE0/0/4: Trunk"},
    {"id":"pc1","type":"pc","model":"PC","name":"PC1","position":{"x":60,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.10.10/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN10"},
    {"id":"lt1","type":"laptop","model":"MateBook","name":"MateBook1","position":{"x":150,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.10.20/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN10"},
    {"id":"tp1","type":"tablet","model":"MatePad","name":"MatePad1","position":{"x":240,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.20.30/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN20"},
    {"id":"pc2","type":"pc","model":"PC","name":"PC2","position":{"x":380,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.20.10/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN20"},
    {"id":"lt2","type":"laptop","model":"MateBook","name":"MateBook2","position":{"x":470,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.20.20/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN20"},
    {"id":"tp2","type":"tablet","model":"MatePad","name":"MatePad2","position":{"x":560,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.10.30/24","vlan":0}],"vlans":[],"routes":[],"config":"VLAN10"}
  ],
  "links": [
    {"id":"l1","deviceAId":"sw1","portA":"GE0/0/1","deviceBId":"pc1","portB":"eth0"},
    {"id":"l2","deviceAId":"sw1","portA":"GE0/0/2","deviceBId":"lt1","portB":"eth0"},
    {"id":"l3","deviceAId":"sw1","portA":"GE0/0/3","deviceBId":"tp1","portB":"eth0"},
    {"id":"l4","deviceAId":"sw2","portA":"GE0/0/1","deviceBId":"pc2","portB":"eth0"},
    {"id":"l5","deviceAId":"sw2","portA":"GE0/0/2","deviceBId":"lt2","portB":"eth0"},
    {"id":"l6","deviceAId":"sw2","portA":"GE0/0/3","deviceBId":"tp2","portB":"eth0"},
    {"id":"l7","deviceAId":"sw1","portA":"GE0/0/4","deviceBId":"sw2","portB":"GE0/0/4"}
  ]
}