Update AMHandler for AL2S to Support the Modify Operation

[zlion]

The AL2S handler need to support the "modify" operation.

[zlion]

Designs for "modify" operation:

1. Perform "Diff" functions the original sliver and modified sliver to identify differences. It results to three categories of connections: to be deleted, to be added and to be updated.
2. Use VirtualNetwork APIs "Delete" and "Post" to remove and add connections as we've done for "add" and "delete" operations.
3. Use VirtualNetwork API "Put" to update existing connections. It is supposed to have better performance than the operation chain of "delete" and "add". Some tests need to be run to verify "Put" operation.

[zlion]

Have done tests that use the "Put" virtualnetwork API to update an existing connection and "GET" to get the result.

The items to be updated are:

1. local IP: 192.168.5.2/24 --> 192.168.6.2/24
2. Peer IP: 192.168.5.1/24 --> 192.168.6.1/24
3. Bandwidth: 50 Mbps --> 100 Mbps
4. VLAN tag: 130 --> 140

The result shows

1. IPs are changed as expected
2. Bandwidth does not change
3. VLAN changed

The question is why the "bandwidth" does not change?

Run "PUT" to update.

curl -X 'PUT' \
  'https://api.ns.internet2.edu/v1/virtualnetworks/l3connections/c7e9da2c-bc62-4256-9347-24a26a7ef605?notify=true' \
  -H 'accept: application/json' \
  -H 'Authorization: Bearer eyJ0e....' \
  -H 'Content-Type: application/json' \
  -d '{
  "virtualL3ConnectionId": "c7e9da2c-bc62-4256-9347-24a26a7ef605",
  "virtualRouterId": "44fd35d5-a4f3-472c-a921-6dc56db78adc",
  "interfaceId": "400172fc-46c6-4134-8ea0-6e3d39c47ccb",
  "remoteName": "AWS",
  "name": 10732,
  "notes": "",
  "displayPosition": 1,
  "encapsulationType": "DOT1Q",
  "vlanOuterId": 140,
  "vlanInnerId": 0,
  "subintId": 140,
  "ipv6PrefixLength": null,
  "localIPv6": null,
  "remoteIPv6": null,
  "bgpStatusIPv6": "UNKNOWN",
  "ipv4PrefixLength": 24,
  "localIPv4": "192.168.6.2",
  "remoteIPv4": "192.168.6.1",
  "bgpStatusIPv4": "UNKNOWN",
  "localASN": 55038,
  "remoteASN": 64512,
  "authnType": "MD5",
  "authnConfig": {
    "md5": "0x....x"
  },
  "mtu": 1500,
  "bfdEnable": false,
  "gtsmEnable": false,
  "cloudConnectionType": "AWS",
  "cloudConnectionConfig": {
    "ownerAccountId": "xxxxxx"
  },
  "maxBandwidth": 100,
  "authoringState": "LIVE",
  "provisioningState": "PROVISIONED",
  "provisioningDetails": "[2024-06-29T12:37:01+00:00] [AWS] [PROVISIONED]\n[2024-06-29T12:37:11+00:00] [NSO] [PROVISIONED]",
  "gnocdbInterfaceId": "",
  "display": "VNL3C-10732",
  "actions": [
    "vl3c_create",
    "vl3c_delete",
    "vl3c_retrieve",
    "vl3c_update"
  ]
}'

Run "GET" to get the updated connection.

{
  "virtualL3ConnectionId": "c7e9da2c-bc62-4256-9347-24a26a7ef605",
  "virtualRouterId": "44fd35d5-a4f3-472c-a921-6dc56db78adc",
  "interfaceId": "400172fc-46c6-4134-8ea0-6e3d39c47ccb",
  "remoteName": "AWS",
  "name": 10732,
  "notes": "",
  "displayPosition": 1,
  "encapsulationType": "DOT1Q",
  "vlanOuterId": 140,
  "vlanInnerId": 0,
  "subintId": 140,
  "ipv6PrefixLength": null,
  "localIPv6": null,
  "remoteIPv6": null,
  "bgpStatusIPv6": "UNKNOWN",
  "ipv4PrefixLength": 24,
  "localIPv4": "192.168.6.2",
  "remoteIPv4": "192.168.6.1",
  "bgpStatusIPv4": "UNKNOWN",
  "localASN": 55038,
  "remoteASN": 64512,
  "authnType": "MD5",
  "authnConfig": {
    "md5": "0x....x"
  },
  "mtu": 1500,
  "bfdEnable": false,
  "gtsmEnable": false,
  "cloudConnectionType": "AWS",
  "cloudConnectionConfig": {
    "ownerAccountId": "xxxxxx"
  },
  "maxBandwidth": 50,
  "authoringState": "LIVE",
  "provisioningState": "PROVISIONED",
  "provisioningDetails": "[2024-06-29T12:37:01+00:00] [AWS] [PROVISIONED]\n[2024-06-29T12:37:11+00:00] [NSO] [PROVISIONED]",
  "gnocdbInterfaceId": "",
  "display": "VNL3C-10732",
  "actions": [
    "vl3c_create",
    "vl3c_delete",
    "vl3c_retrieve",
    "vl3c_update"
  ]
}