network_data in metadata service not the same with network_data from configdrive when set ironic portgroup

When i use nova to boot a ironic instance and use portgroup to make nic bonds,I found network_data in metadata service is not the same with network_data from configdrive.

Cloud-init can only use the network_data from configdrive to make nic bonds.

I think the network_data.json from metadata and network_data.json from configdrive should be the same.

network_data from metadata service

{
 "link": [{
   "id": "tap9997f2061-e3",
   "vif_id": "997f2062-e352-410e-b7d4-1f63cc1b01ee",
   "type": "phy",
   "mtu": "1500",
   "ethernet_mac_address": "b4:05:5d:15:f9:3e"
  }
 ],
 "networks": [{
   "id": "network0",
   "type": "ipv6_dhcp",
   "link": "tap9997f2061-e3",
   "network_id": "27c2c6b3-d6eb-4c8d-8ae4-f630a218748d",
  }
 ],
 "services": []
}

network_data from configdrive
{
 "link": [{
   "id": "tap9997f2061-e3",
   "vif_id": "997f2062-e352-410e-b7d4-1f63cc1b01ee",
   "type": "bond",
   "mtu": "1500",
   "ethernet_mac_address": "b4:05:5d:15:f9:3e",
   "bond_mode": "802.3ad",
   "bond_links": ["038f035a-31ca-488e-abfb-24c45c25920e", "32da47cc-ddee-4987-9ea7-682a0d8369aa"],
   "bond_miimon": 100
  }, {
   "id": "038f035a-31ca-488e-abfb-24c45c25920e",
   "type": "phy",
   "ethernet_mac_address": "b4:05:5d:15:f9:3e"
  }, {
   "id": "32da47cc-ddee-4987-9ea7-682a0d8369aa",
   "type": "phy",
   "ethernet_mac_address": "b4:05:5d:15:f9:3f"
  }
 ],
 "networks": [{
   "id": "network0",
   "type": "ipv6_dhcp",
   "link": "tap9997f2061-e3",
   "network_id": "27c2c6b3-d6eb-4c8d-8ae4-f630a218748d",
  }
 ],
 "services": []
}