{
  "name": "STP生成树实验",
  "description": "2台S5700交换机+路由器+PC+MateBook+MatePad+Server，STP环路消除与根桥选举",
  "devices": [
    {"id":"sw1","type":"switch","model":"S5700","name":"SW1","position":{"x":200,"y":160},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"","vlan":0},{"name":"GE0/0/2","ip":"","vlan":0},{"name":"GE0/0/3","ip":"","vlan":0},{"name":"GE0/0/4","ip":"","vlan":0},{"name":"GE0/0/5","ip":"","vlan":0}],"vlans":[],"routes":[],"config":"STP优先级4096(根桥), STP模式stp"},
    {"id":"sw2","type":"switch","model":"S5700","name":"SW2","position":{"x":440,"y":160},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"","vlan":0},{"name":"GE0/0/2","ip":"","vlan":0},{"name":"GE0/0/3","ip":"","vlan":0},{"name":"GE0/0/4","ip":"","vlan":0}],"vlans":[],"routes":[],"config":"STP默认优先级32768, STP模式stp"},
    {"id":"r1","type":"router","model":"AR2220","name":"R1","position":{"x":320,"y":50},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"192.168.1.1/24","vlan":0},{"name":"GE0/0/2","ip":"200.1.1.1/30","vlan":0}],"vlans":[],"routes":[],"config":"网关路由器, GE0/0/2模拟外网连接"},
    {"id":"pc1","type":"pc","model":"PC","name":"PC","position":{"x":60,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.1.10/24","vlan":0}],"vlans":[],"routes":[],"config":"gateway: 192.168.1.1"},
    {"id":"lt1","type":"laptop","model":"MateBook","name":"MateBook","position":{"x":150,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.1.20/24","vlan":0}],"vlans":[],"routes":[],"config":"gateway: 192.168.1.1"},
    {"id":"tp1","type":"tablet","model":"MatePad","name":"MatePad","position":{"x":380,"y":340},"status":"running","interfaces":[{"name":"eth0","ip":"192.168.1.30/24","vlan":0}],"vlans":[],"routes":[],"config":"gateway: 192.168.1.1"},
    {"id":"sv1","type":"server","model":"Server","name":"Server","position":{"x":500,"y":340},"status":"running","interfaces":[{"name":"GE0/0/1","ip":"192.168.1.100/24","vlan":0}],"vlans":[],"routes":[],"config":"HTTP服务, gateway: 192.168.1.1"}
  ],
  "links": [
    {"id":"l1","deviceAId":"sw1","portA":"GE0/0/1","deviceBId":"sw2","portB":"GE0/0/1"},
    {"id":"l2","deviceAId":"sw1","portA":"GE0/0/2","deviceBId":"sw2","portB":"GE0/0/2"},
    {"id":"l3","deviceAId":"sw1","portA":"GE0/0/3","deviceBId":"r1","portB":"GE0/0/1"},
    {"id":"l4","deviceAId":"sw1","portA":"GE0/0/4","deviceBId":"pc1","portB":"eth0"},
    {"id":"l5","deviceAId":"sw1","portA":"GE0/0/5","deviceBId":"lt1","portB":"eth0"},
    {"id":"l6","deviceAId":"sw2","portA":"GE0/0/3","deviceBId":"sv1","portB":"GE0/0/1"},
    {"id":"l7","deviceAId":"sw2","portA":"GE0/0/4","deviceBId":"tp1","portB":"eth0"}
  ]
}