4.1. Logical Network

4.1.1. About This Menu

4.1.1.1. About This Menu

This menu provides L2 Network (hereafter called as Logical Network) that Customers can use in their tenants.
The Logical Network can be connected with each resource that Customers have in their tenants. By this, Customers can establish L2 connectivity between any resources and realize flexible network design within their tenant.
Operations such as adding/modifying/deleting Logical Network are automated, so the commands via Customer Portal or API of Enterprise Cloud 2.0 will reflect instantly to Customers’ Tenants.

4.1.1.2. Features

Following are the features of “Logical Network” in Enterprise Cloud 2.0.

  • Versatility that enables flexible network design

    • Logical Network excludes fixed network architectures proprietary specified by providers such as existing cloud services. As it is free to connect or not to connect with each resource provided with this service, Customers can migrate the architectures as are configured in the on premises environments today or realize complex network architectures being investigated by Customers.

  • Automated Provisioning with SDN technology

    • Customers are able to utilize on-demand network architectures with automated provisioning by the latest SDN technology to keep up their business agility. This menu is optimized for the cloud environment due to its on-demand function.

4.1.2. Available Functions

4.1.2.1. List of Functions

Overview

Functions available in the Logical Network menu are as follows.

No.

Function

Overview

1
Network Function
(Logical Network)

It provides L2 network and L2 connectivity between any resources within the tenant.

2
Address Management function
(Subnet)

Address information commonly used in a Logical Network (IP address block, default gateway, DNS server, NTP server, etc.) can be managed.

3
Port function
(port)

It is a virtual interface created on a Logical Network and connects interface of each resource with the Logical Network. It delivers IP address used by a connected resource of the port by selecting from fixed / automatic based on the subnet information.

4

Address Settings

It sets addresses to resources based on the address information of the subnet / port.

5

Logical Network Management

Customers are provided with functions to manage Logical Network via Customer Portal / API.

6

“Subnet” Management

Customers are provided with functions to manage subnet via Customer Portal / API.

7

“Port” Management

Customers are provided with functions to manage ports via Customer Portal / API.


4.1.2.2. Function details

1.Network Function

  • Resource that Customers have in their tenants can be connected each other in L2.

  • Logical Network has following two planes depending on their use.

Plain Type

Purpose

Connectable resources

Data Plane

Logical Network used for data communication. In principle, it can connect all the resources.

All except File Storage (Premium)

Storage Plane

The plane dedicated for the connections between storages and servers. This is provided with the infrastructure optimized for the transmission between storages and servers, and does not get effected from any traffic of data transmission.

Baremetal Server / File Storage (Premium) / Block Storage (Provisioned I/O Performance)
*Virtual Servers cannot be connected.

プレーン種別

Address Management function (Subnet)

  • Address information commonly used in a Logical Network (IP address block, default gateway, DNS server, NTP server, etc.) can be managed.

  • Parameters that can be specified are as follows.

Function Types

Conditions

Details

Network Address

Mandatory

Sets network address to be assigned to Logical Network. It can be specified in CIDR format.
Both global and private IP address can be assigned to Logical Network.
An address range that includes following address ranges cannot be registered.
* link local address (169.254.0.0/16)
* ISP shared address (100.64.0.0/10)
Range of the mask length that can be specified is /30–/2.

Gateway IP

Optional

If Customers want to set the default gateway, specify any IP address from the network address.
In case Customers do not set the gateway, Customers can select “No Gateway”.

Enable DHCP(Server Address Setting function)

Optional

Selects to enable / disable address setting function to server resources.
If this item is enabled, one IP address for server address setting server (DHCP server) will be secured.
Up to one subnet is allowed to enable DHCP in one Logical Network.
If multiple subnets are created in one Logical Network and DHCP of multiple subnets are enabled, they will be outside of our support.

IP Address Pool

Optional

Customers can specify the IP address range to use when IP addresses are automatically assigned.
It is a range of IP address automatically assigned if IP address specification is omitted when each resource is connected to Logical Network.
If not explicitly specified, all addresses specified by the network address excluding the following addresses will be specified.
*Network Address (Segment head)
*Broadcast Address (Segment tail)
*Gateway IP (Note: If gateway IP is not specified, the address of the segment head + 1 will be secured.)
Example: If the network address is 192.168.0.0/24 and the gateway IP is 192.168.1.1, IP address assignment pool is 192.168.0.2-192.168.0.254.
Example: If the network address is 192.168.0.0/24 and the gateway IP is not specified, IP address assignment pool is 192.168.0.2-192.168.0.254.
As deletion and recreation of the Subnet is required when the modification is made, specify appropriate values after designing automatic assignment range and fixed assignment range.

DNS Server

Optional

The DNS servers that Customers use can be specified.

NTP Server

Optional

The NTP servers that Customers use can be specified.

Setting additional route

Optional

Additional route settings that Customers want to set will be assigned.


3.Port function(port)

  • It provides a logical port to connect Logical Network and each resource.

  • To this port, one fixed IP address not used by other ports and one fixed MAC address will be assigned manually or automatically by default.

  • In Logical Network, communication is controlled by combination of IP address and MAC address.

  • If Customers want to use the same IP address for multiple ports for redundancy, register the same virtual IP address and the same virtual MAC address to [ Allowed Address Pair ] item of all the ports Customers want to make redundant. If this setting is not implemented, correct communication to virtual IP address is not possible.

  • Redundancy scheme to use the same IP address by different MAC addresses will not work.

  • Parameters that can be specified are as follows.

Types

Details

IP address (Fixed IP)

IP addresses for use by the resources can be registered.
Manual delivery (specify any address) or automatic delivery can be selected.
*Manual delivery: Customers will specify any unused IP address within the network address.
*Automatic Assign: The lowest unused address in the IP address assignment pool will be automatically delivered.

Allowed Address Pair

Virtual IP address and virtual MAC address used in redundancy protocol such as VRRP can be registered.
Please note that if this setting is not implemented, communication to virtual IP address which is used in redundancy protocol is not possible.
Register the same Virtual IP address and the same virtual MAC address for each of the multiple ports where Customers want to operate the redundancy protocol.
Only manual assignment (specify any address) is possible.

Segment Type

With Baremetal Servers, VLAN type of the segment between port and resource can be selected from the following two types.
*flat type: This connects Logical Network port and resource with untagged VLAN.
*vlan type: This connects Logical Network port and resource with tagged VLAN.
For details, please refer to the Service Description of Baremetal Server Menu.

(Reference) Address Assignof Logical Network

It assigns IP address used by a connected resource at the time of port creation. Specifying any address or automatic delivery can be selected.

Address Assign Types

Details

Manual

Customers will specify any unused IP address within the network address.

Automatic

The lowest unused address in the IP address assignment pool will be automatically assigned.


アドレス割当

4.Address Setting Function(DHCP)

  • The address setting function sets addresses to the resources based on the address information of the Subnet / Port.

  • Contents of setting and OK / NG of setting function operation, of each menu in the address setting function are summarized in the following table.

  • Different from general DHCP, it passes address information as a lease without time limit based on Port and Subnet information so it sets up the same IP address every time.

  • Customer can set any static IP address when this function is enabled as well. Please specify IP address by Address Delivery function at port.

  • If this function is enabled, one IP address for logical port for setting (DHCP server port) is required. The lowest unused address in the IP address assignment pool will be automatically delivered.

Categories

Menu

Items to set to the resources

OK / NG of setting function operation (DHCP Enabled)

OK / NG of setting function operation (DHCP Disabled)

Server

Virtual Server

IP address, gateway IP, NTP server, DNS server, additional route setting

*1

N/A

 

Baremetal Server

IP address, gateway IP, NTP server, DNS server, additional route setting

*1

N/A

Storage Plane

Block Storage (Provisioned I/O Performance)

IP address, additional route setting

 

FileStorage(Premium)

IP address, additional route setting

Network

Internet Connectivity

IP Address

 

VPN Connectivity

IP Address

 

DC Inter-Connectivity

IP Address

 

Firewall (Brocade 5600 vRouter)

IP Address

 

Load Balancer(NetScaler VPX)

IP Address

 

Colocation Inter-Connectivity (CIC)

Outside the scope of address setting function due to L2 connectivity.

N/A

N/A

 

Enterprise Cloud Inter-Connectivity (EIC)

Outside the scope of address setting function due to L2 connectivity.

N/A

N/A

Security

Managed Firewall

IP Address

  Managed UTM

IP Address

  Managed WAF

IP Address


Note

  • *1: Server address setting function (DHCP) will work correctly only when address information is registered to Port / Subnet. Please align the IP addresses that Customers want to set to the resources and the IP addresses to register to the Port.

  • Please check the service description of the menu for more information.


5.Self management function(Logical Network)

Following operations are available as self-management functions of a Logical Network:

Operations

Operation Details

View Logical Network Information

View details of subscribed Logical Network.

Create new Logical Network

Create a new contract of Logical Network.

Modify settings of Logical Network.

Modify settings of subscribed Logical Network.

Delete Logical Network

Delete subscribed Logical Network.


View Logical Network Information

Customers can view the details of subscribed Logical Network via Customer Portal / API.

Available Information

Details

ID

Customers can check Logical Network IDs added by system.

Friendly Name

Customers can view specified Friendly Name of Logical Network.

Description

Customers can view specified description of Logical Network.

Plane

Customers can check Plane types (Data Plane/ Storage Plane) of Logical Network.

Management Status

Customers can view validity/invalidity status of Logical Network. Invalid Logical Network cannot be utilized for transmission.

Status

Customers can view the operation status for Logical Network.

Subnet

Customers can view Subnets assigned to Logical Network.

Tag

Customers can view tags set up to Logical Network. These tags can be utilized to specify conditions via Customer Portal / API.

Create New Logical Network

Customers can create new Logical Network by operations via Customer Portal / API. Following parameters can be specified.

Configurable Information

Details

Friendly Name

Customers can specify any Friendly Name to Logical Network.

Description

Customers can set any string for the description of Logical Network.

Plane

Customers can specify Plane types (Data Plane/ Storage Plane) of Logical Network

Management Status

Customers can set up validity/invalidity status of Logical Network. Invalid Logical Network cannot be utilized for transmission.

Tag

Customers can set tags to Logical Network. These tags can be utilized to specify conditions via Customer Portal / API.


Modify Logical Network Settings

Customers can change settings of subscribed Logical Network setting via Customer Portal / API.
Following are details of parameters Customers can modify:

Configurable Information

Details

Friendly Name

Customers can specify any Friendly Name to Logical Network.

Description

Customers can set any string for the description of Logical Network.

Management Status

Customers can set up validity/invalidity status of Logical Network. Invalid Logical Network cannot be utilized for transmission.

Tag

Customers can set tags to Logical Network. These tags can be utilized to specify conditions via Customer Portal / API.


Delete Logical Network

  • Customers can delete subscribed Logical Network via Customer Portal / API.

  • Customers can delete Logical Network when there is no Subnet that belongs to it.


6.Self management function(Subnet)

Following operations are available as self-management functions of Subnet:

Operations

Operation Details

View Subnet

Customer can view the Subnet details that are registered on Logical Network.

Create Subnet

Customers can register Subnet settings such as IPv4 address block on Logical Network.

Modify Subnet

Customers can change Subnet settings on Logical Network that they have registered.

Delete Subnet

Customers can delete Subnet settings from Logical Networks that they have registered.


View Subnet Information

Customers can view registered information of Subnet.
Following are the details.

Available Informations

Details

Friendly Name

View Friendly Name Customers set to Subnet

ID

View Subnet ID

Description

View Description Customers set to Subnet

Tenant ID

View Tenant ID where Subnet exists.

Logical Network

View Logical Network ID where the the Subnet is assigned.

Network Address

View network addresses Customers set to Subnets.

IP Address Pool

View IPv4 address range as target of automatic assign to each resource.
It is a range of IP address automatically assigned if IP address specification is omitted when each resource is connected to Logical Network.

Gateway IP

View IPv4 address of the default gateway as target of automatic assigned to each resource by DHCP.

DNS Server

View IPv4 address of the DNS server as target of automatic assigned to each resource by DHCP.

Additional Route

View IPv4 address of the Static Route as target of automatic assigned to each resource by DHCP.

NTP Server

View IPv4 address of the NTP server as target of automatic assigned to each resource by DHCP.

Validity / Invalidity of DHCP

View validity/invalidity of DHCP of Subnet.

Tag

View tags set to Subnet.


Create Subnet

Customers can register Subnet to their existing Logical Network.
Customers can register Subnet to their existing Logical Network.

Configurable Information

Details

Friendly Name

Set a Name of Subnet

Description

Set any string for the description of Subnet

Network Address

Set network address of Subnet

IP Address Pool

Set IPv4 address range as target of automatic assigned to each resource.
It is a range of IP address automatically assigned if IP address specification is omitted when each resource is connected to Logical Network.

Gateway IP

Set IPv4 address range of the default gateway as target of automatic assigned to each resource by DHCP.

DNS Server

Set IPv4 address of the DNS server as target of automatic assigned to each resource by DHCP.

Additional Route

Set IPv4 address of the Static Route as target of automatic assigned to each resource by DHCP.

NTP Server

Set IPv4 address of the NTP server as target of automatic assigned to each resource by DHCP.

Validity / Invalidity of DHCP

Set validity/invalidity of DHCP of Subnet.

Tag

Set tags set to Subnet.


Modify Subnet

Customers can modify Subnet settings assigned to Logical Network.

Configurable Information

Details

Friendly Name

Modify the Name of Subnet

Description of Subnet

Modify any string for the description of Subnet

Network Address

Modify network address of Subnet

Gateway IP

Modify IPv4 address of the default gateway as target of automatic assigned to each resource by DHCP.

DNS Server

Modify IPv4 address of the DNS server as target of automatic assigned to each resource by DHCP.

Additional Route

Modify IPv4 address of the Static Route as target of automatic assigned to each resource by DHCP.

Validity / Invalidity of DHCP

Register multiple additional routes for one subnet address.

Subnet Tag

Modify tags set to Subnet.


Delete Subnet

  • Customers can delete Subnet settings assigned to Logical Network.

  • Customers can delete Subnet only in case no Ports belongs to it. (i.e. in case all the Ports are deleted from Subnet)


7.Self management function(Port)

Following self-management functions of Port are available:
For creation and deletion of Port, they can be made by operation in the side of connection destination.

Operations

Operation Details

View Port

View additional information of Port added to Logical Network

Modify Port Settings

Modify Port added to Logical Network

Delete Port

Delete Ports of Logical Network


View Port

View information about Port of Logical Network. Following are parameters Customers can view:

Available Informations

Details

Name

View Friendly Name of Ports.

ID

View Port ID.

Description

View any strings Customers set to Port.

Tenant ID

View Tenant ID where Port exists.

Logical Network

View Logical Network where the Port belongs.

MAC Address

View MAC address of Port.

Segment Type

View tag / untag of VLAN connecting the Port and resources.

Segment ID

View VLAN ID, in case VLAN segment type is “tagged”.

Status

View the running status of Port operation.

Management by Service-Side

View whether the Port is managed by service-side or not.

Subnet ID

Display the subnet ID where the Port belongs.

IP Address

Display IPv4 address which is assigned to Port.

Permitted IP Address Pair (MAC Address)

In addition to MAC address / IP address assigned to a Port, multiple IP address pairs (combination of MAC address and IP address) can be assigned to the same port. View the MAC address of the IP address pair set up additionally.

Permitted IP Address Pair (IP Address)

In addition to MAC address / IP address assigned to a Port, multiple IP address pairs (combination of MAC address and IP address) can be assigned to the same port. View the IP address of the IP address pair set up additionally.

Device Owner

View Resource information.

DeviceID

View Resource ID.

Tag

View tags set to Ports. These tags can be utilized to specify conditions via Cutomer Portal / API.


Modify Port

Customers can modify Port of Logical Network. Following are parameters they can modify.

Available Parameters

Details

Name

Modify Friendly Name of Ports.

Description

Modify any strings Customers set to Port.

Tag

Modify tags set to Ports. These tags can be utilized to specify conditions via Cutomer Portal / API.

Fixed-IP

IP address to be assigned to Port can be added.

Allowed Address Pair

Allowed address pair to be assigned to Port can be added or deleted.


4.1.3. Menu

4.1.3.1. Menu / Plan

There is no plan in Logical Network.

4.1.3.2. Subscription Types and Methods

Customers who have contracted this service are eligible for subscription of Logical Network.
Following are subscription types. Prices change, based on the subscriptions types below.

Subscription Type

Subscription Method

Offered Date

Add New Logical Network

Customers’ operation via Customer Portal/API

Instant Offering

Delete Logical Network

Customers’ operation via Customer Portal/API

Instant Offering

4.1.3.3. Important Notes of Subscription

The following are the maximum/minimum numbers per Tenant, and a sales unit of Logical Network.
 

Uppermost Maximum

Lowermost Minimum

Unit for Sale

Logical Network

64 0 1

Subnet

128 0 1

Port

2048 0 1

4.1.4. Pricing

4.1.4.1. Initial Fee

There is no initial fee.

4.1.4.2. Monthly Fee

Monthly fee is applied for this menu
Every monthly fee consists with monthly capped max. metered bill.

4.1.4.3. Free of Charge Subscription

This menu provides Customers free of charge equivalent to five of Logical Networks per Tenant.
The Charge of maximum five Logical Networks (Maximum monthly charge) will be deducted from Customers’ overall charge of Logcal Network.

Note

※The following equation will be used to calculate the charge. (Monthly overall charge of Logical Network) = (Monthly charge of Logical Network 1) + (Monthly charge of Logical Network 2)...+ (Monthly charge of Logical Network n) - (Maximum monthly charge of Logical Network) × 5


4.1.5. Quality of Service

4.1.5.1. Support Coverage

Functions provided with this menu come within the support coverage.
Designing and configuring Customers’ network architectures utilizing Logical Network are not supported.

4.1.5.2. Operations

Qualities of this Menu’s Operation corresponds to the standard level of what this service requires. For details, refer to “Support” section in Service Description.

4.1.5.3. SLA

The SLA of this menu is based on the standardized SLA for Enterprise Cloud 2.0; for the details please refer to the Service Description of SLA.

4.1.6. Restrictions

General

  • Following is restrictions for using this menu. Therefore please check this chapter.

  • For details of each menu connected to Logical Network, please refer to the Service Description of each menu.

Network Function(Logical Network)

  • Logical Network provides L2 Network in customer’s tenants. To access to outside of tenant, customer need to subscribe other menu which can connect to external tenant, such as Intenet Gateway and Colocation Inter-Connectivity.

  • Stable communication can be expected because it is designed to increase the bandwidth of customer traffic flowing over the logical network.

  • Any frames that has IEEE 802.1D MAC Bridge Filtered MAC Group Addresses (01-80-C2-00-00-00 to 01-80-C2-00-00-0F) cannot go through the Logical Network. (For example, following protocols cannot go through. However, this shall not apply to the vendor-specific protocols that do not use this MAC addresses.

    • BPDU (STP/RSTP/MSTP, etc)

    • Pause Frame
    • LLDP
    • LACP (Link Aggregation Control Protocol)
  • Multicast/broadcast/unknown unicast transmission(BUM) is restricted to 10Mbps or less by NTT Com.

  • Maximum 9000 bytes of MTU size is available.

  • In Logical Network, communication is controlled by combination of IP address and MAC address.

  • If Customers want to use the same IP address for multiple ports for redundancy, register the same virtual IP address and the same virtual MAC address to [ Allowed Address Pair ] item of all the ports Customers want to make redundant. If this setting is not implemented, correct communication to virtual address is not possible.

  • Redundancy scheme to use the same IP address by different MAC addresses will not work.

Address Management Function (Subnet)

  • Logical Network can be assigned Global IP address and Private IP address. However, following IP address segment cannot be assigned to Logical Network.

    • link local address (169.254.0.0/16)
    • ISP shared address (100.64.0.0/10)
  • Range of the mask length that can be specified is /30–/2.

  • In order to have extensibility of resource expansion, please set a wide range of address range.

  • Though multiple Subnets can be created for one Logical Network, the traffics will flow in the same L2 network. It is not a function to divide the L2 network

  • When using VRRP, please make DHCP function of the Logical Network to be connected “valid”. When the DHCP function is “invalid” , the ARP request is executed at the source address of 0.0.0.0 on ECL2.0 Network. In this case, it is confirmed that Load Balancer, Managed Firewall/UTM, etc. provided by NTTCom do not reply ARP and interruption of transmission may occur at the time of VRRP switching.

  • If DHCP function is enabled, one IP address for server address setting server (DHCP server) will be secured. Automatically assign the lowest number of unused addresses in the IP address allocation pool.

    • Up to one subnet is allowed to enable DHCP in one Logical Network.

Port function

  • System registration of in-use IP address

    • The in-use IP address in L2 connectivity menu, such as Colocation Inter-Connectivity and Enterprise Cloud Inter-Connectivity, is not registered system automatically.

    • Please design to set an address outside the IP address allocation pool, or create a port resource and register the busy address in the system.

    • The IP address of “Allowed Address Pair” is not registered system automatically as well.

    • When DHCP function is enabled, automatically assign the lowest number of unused addresses in the IP address allocation pool. In order to avoid assigning IP addresses not registered in the above system, customer needs to manually create the port and register the in-use IP address. As of 2017.11, port creation can be performed only with API.

  • Use of multiple ports with the same IP address

    • In Logical Network, communication is controlled by combination of IP address and MAC address.

    • If Customers want to use the same IP address for multiple ports for redundancy, register the same virtual IP address and the same virtual MAC address to [ Allowed Address Pair ] item of all the ports Customers want to make redundant. If this setting is not implemented, correct communication to virtual IP address is not possible.

    • Redundancy scheme to use the same IP address by different MAC addresses will not work.

Cautions for connecting Baremtal server

  • A Baremetal Server has four physical NIC ports. With Logical Network, two ports are available for Data Plane connection and two ports for Storage Plane connection.

  • Physical NIC port for each Plane is housed in a different Network Interface Card, and physical NIC port is connected to a different peer switch.

  • Failure of physical NIC port / peer switch may occur. In that case, the connection point where a failure occurred will be disconnected.

  • Therefore, for each connection with Data Plane / Storage Plane, make redundant configuration to cope with physical NIC port failure and peer switch failure.

  • For details, please refer to the Service Description of Baremetal Server Menu.

Cautions for connecting Windows Server

  • When connecting to Windows Server, IP address may not be set due to conflict with DAD (Duplicate Address Detection) function of Windows OS. Please use it in the following setting.

    • DHCP function in Logical Network is enabled.

    • When DHCP function is disabled, configure static setting of IP address on Windows OS and disable DAD function.

  • Please refer to FAQ for detail of this issue.

Others

  • Before deleting the logical network, customer needs to delete all the subnet / ports that connect to the logical network customer want to delete.

  • Before deleting the subnet, customer needs to delete all the ports that connect to the logical network customer wants to delete.


4.1.7. NG configuration of Logical Network

  • Versatility that enables flexible network design like on-premise environment.

  • Because of the constraints of the communication protocol etc., it does not work normally with the following configuration, so please check the following configuration example and set it appropriately.

  • For other restrictions on each menu, please check the service descriptions of each menu.

NG Configuration

Description

../../_images/ln_ng_asymmetry_traffic.png
Asymmetric communication (communication where traffic goes and returns is another route) may not be able to communicate. Please design so that traffic going and returning are symmetric communication with the same route.
../../_images/ln_ng_same_network.png
If you connect to the same logical network from the same resource and communicate using the same source MAC address, communication may not be failed.
The same is true for connections on different subnets of the same logical network. Since the subnet is an address management function, the same L2 network will be connected even if it is a different subnet.
Please connect to a different logical network.
../../_images/ln_ng_mac_duplication.png
The following menus can not be connected to the same logical network for MAC address duplication prevention. If you connect, communication may be impossible.
  • Internet Connectivity and Internet Connectivity

  • Datacenter Inter-Connectivity and Datacenter Inter-Connectivity

  • VPN Connectivity and VPN Connectivity

  • Amazon Web Services接続とAmazon Web Services接続
  • VPN Conectivity and Amazon Web Services Interconnectivity

../../_images/ln_ng_mac_duplication_security.png
Network-based Security (Managed FW / UTM) may not be able to communicate if MAC addresses conflict between adjacent segments.
To prevent MAC address duplication, do not connect the logical networks connected with the menu mentioned above with Network-based Security.
../../_images/ln_ng_l2_roop.png
To prevent the L2 loop, the following menus can not be connected to the same logical network
  • Colocation Inter-Connectivity and Colocation Inter-Connectivity

  • Enterprise Cloud 1.0 Inter-Connectivity and Enterprise Cloud 1.0 Inter-Connectivity

  • Colocation Inter-Connectivity and Enterprise Cloud 1.0 Inter-Connectivity

../../_images/ln_ng_vrrp_id_duplication.png
In order to prevent MAC address duplication, design so that the VRRP group ID does not conflict between resources connected to the same logical network. Since the virtual MAC address used for communication when using VRRP is the value of “00: 00: 5e: 00: 01: (VRRP group ID value)” on the basis of the VRRP group ID, if the same VRRP group ID is used, the MAC address is duplicated.
Network-based Security (Managed FW / UTM) may not be able to communicate if MAC addresses duplicated between adjacent segments. Do not connect logical networks connected with resources with duplicate VRRP group IDs with Network-based Security (Managed FW / UTM).
The restrictions for specific menu are as follows.
  • The VRRP group ID that can be used for Network based Security (Managed FW / UTM) is 1 to 100. Also, since VRRP group ID 11 is used in the NTTCom’s equipment, please use a value other than 11.

  • In Enterprise Cloud 1.0, the VRRP group ID 0 to 80 is used in the NTTCom’s equipment. Do not use 0 to 80 for other resources when using Enterprise Cloud 1.0 connection or when connecting to Enterprise Cloud 1.0 at the destination of collocation connection.