Network > Transit Hub > Console User Guide

This guide describes how to use the Transit Hub service from the console.

Manage

Manage Transit Hub settings.

Create Transit Hub

To create a transit hub, use the following steps.

  1. Go to Network > Transit Hub > Manage.
  2. Click Create Transit Hub to display the creation screen.
  3. On the creation screen, enter the information about the Transit Hub.
    • Name: Enter a name for the transit hub.
    • Description: Describe the description of the transit hub.
    • Multicast support: Check if multicast communication is required.
    • Attach default routing table: When attachment is created, it automatically is attached to the default routing table.
    • Default routing table propagation: Automatically add the CIDR setting value of VPC related to attachment to the default routing table as a routing rule.

      [Caution] * You cannot change multicast support, default routing table attachment/propagation settings. * Default routing table is created only when one or more of the default routing table attachments or default routing table propagation is selected.

Modify Transit Hub

A transit hub can be modified as follows. You can only change the name and description.

  1. Go to Network > Transit Hub > Manage.
  2. Select a transit hub that you want to modify from the list on the screen.
  3. Click Modify Transit Hub to display the modification screen.
  4. On the modification screen, make changes to an item.

Delete Transit Hub

To delete a transit hub, use the following steps.

  1. Go to Network > Transit Hub > Manage.
  2. Select a transit hub that you want to delete from the list on the screen.
  3. Click Delete Transit Hub to delete.

Share with another project

Share a transit hub with another project. In another project, you can create Attachment to the shared transit hub.
To share Transit Hub, use the following steps.

  1. Go to Network > Transit Hub > Manage.
  2. Select a transit hub that you want to share from the list on the screen.
  3. Click Share with Another Project, and on the share screen, enter the tenant ID of the other party that you want to share with.

    [Note] How to check out the tenant ID of another project.
    [Note] If you do not have access to another project, obtain a tenant ID from the administrator of the project. 1. Access the console screen of the project. 2. Go to     Network > VPC > Management. 3. Select one of the VPCs that appears in the screen list. 4. Copy the ID value shown in Basic Information > Tenant ID.

Attach

Manage attachment that defines the relationship between transit hubs and other resources.

Create Attachment

To create attachment, use the following steps.

  1. Go to Network > Transit Hub > Attach.
  2. Click Create Attachment to display the creation screen.
  3. On the creation screen, enter the information about the attachment.
    • Name: Enter a name of the attachment.
    • Description: Describe the description of attachment.
    • Transit hub type: Select general transit hub created by the same project or shared transit hub shared by another projects.
    • Transit hub: Select a transit hub where the attachment will be created.
    • Resource type: Select a resource type.

      [Note] Currently, only VPC can be selected as the resource type.

    • Resource: Select a resource that is related to attachment.

      [Note] Since only VPC can be selected as the resource type, only the VPC list is automatically output.

    • Subnet: Select a subnet where the network interface of the attachment is created.

Modify Attachment

Attachment can be modified as follows. You can only change the name and description.

  1. Go to Network > Transit Hub > Attach.
  2. Select attachment you want to modify from the list on the screen.
  3. Click Modify Attachment to display the modification screen.
  4. On the modification screen, make changes to an item.

Delete Attachment

To delete attachment, use the following steps.

  1. Go to Network > Transit Hub > Attach.
  2. Select attachment you want to delete from the list on the screen.
  3. Click Delete Attachment to delete.

Routing Table

Manage the Routing Table settings on the Transit Hub.

Create Routing table

To create a routing table, use the following steps.

  1. Go to Network > Transit Hub > Routing Table.
  2. Click Create Routing Table to display the creation screen.
  3. On the creation screen, enter the information about the routing table.
    • Name: Enter a routing table name.
    • Description: Describe the description of a routing table.
    • Transit hub: Select a transit hub where you want to create the routing table.

Modify Routing Table

Routing table can be modified as follows. You can only change the name and description.

  1. Go to Network > Transit Hub > Routing Table.
  2. Select a routing table you want to change from the list on the screen.
  3. Click Modify Routing Table to display the modification screen.
  4. On the modification screen, make changes to an item.

Delete Routing Table

To delete routing table, use the following steps.

  1. Go to Network > Transit Hub > Routing Table.
  2. Select a routing table you want to delete from the list on the screen.
  3. Click Delete Routing Table to delete.

Manage Routing Table

Check the basic information for the selected routing table and manage the packet handling rules and settings associated with routing.

Basic Information

You can check the basic information for the selected routing table.

Routing Association

Manage routing association that defines the relationship with the attachment for routing table to receive packets.

Create Routing Association

To create routing association, use the following steps.

  1. Go to Network > Transit Hub > Routing Table > Routing Association.
  2. Click Create Routing Association to display the creation screen.
  3. On the creation screen, enter the information about Routing Association.
    • Attach: Select attachment for a routing table to receive packets.

      [Note] One attachment on a Transit Hub can only create one routing association on a routing table.

Delete Routing Association

To delete routing association, use the following steps.

  1. Go to Network > Transit Hub > Routing Table > Routing Association.
  2. Select routing association you want to delete from the list on the screen.
  3. Click Delete Routing Association to delete.

Routing Propagation

You can automatically create a routing rule in the routing table that manages the outbound policy for packets. Manage routing propagation, which defines the relationship with attachment to automatically create routing rules.

[Caution] * If a routing rule with the same band as the CIDR to be propagated already exists, the routing rule by routing propagation is not automatically registered. * Routing propagation that fails automatic routing rule registration changes its status to ERROR. Appropriate action is required, such as reviewing the CIDR and recreating routing propagation or using manual setting of routing rules. * Even if routing propagation is added for two or more attachments** with the same network bandwidth (CIDR), routing rules are automatically registered only for the first routing propagation created in the same way as above.

Create Routing Propagation

To create routing propagation, use the following steps.

  1. Go to Network > Transit Hub > routing table > Routing Propagation.
  2. Click Create Routing Propagation to display the creation screen.
  3. On the creation screen, enter the information about Routing Propagation.
    • Attach: Select attachment that automatically creates a routing rule for routing table to receive packets.

      [Note] One attachment in a transit hub can create up to one routing propagation per routing table.

Delete Routing Propagation

To delete routing propagation, use the following steps.

  1. Go to Network > Transit Hub > routing table > Routing Propagation.
  2. Select Routing Propagation you want to delete from the list on the screen.
  3. Click Delete Routing Propagation to delete.

    [Caution] When deleting routing propagation, Routing Rule that was automatically added will be deleted together.

Routing Rule

Manage routing rules that handle the outbound rules of packets from the routing table.

[Note] Routing Rule cannot be added if Routing Rule in the same band as the CIDR to be propagated already exists.

Create Routing Rule

To create routing rule , use the following steps.

  1. Go to Network > Transit Hub > Routing Table > Routing Rule.
  2. Click Create Routing Rule to display the creation screen.
  3. On the creation screen, enter the information about routing rule.
    • Target CIDR: Enter the destination network band for the routing policy.

      [Note] The priority of routing rules in the routing table is determined by the Longest Pre-fix Matching result of CIDR set in the routing rule.

    • Attach: Select attachment for routing table to receive packets.
Delete Routing Rule

To delete routing rule, use the following steps.

  1. Go to Network > Transit Hub > Routing Table > Routing Rule.
  2. Select routing rule you want to delete from the list on the screen.
  3. Click Delete Routing Rule to delete.

Multicast

Manage the Multicast settings on Transit Hub.

[Caution] Multicast Domain cannot be created if Multicast Support is not selected on Transit Hub and all multicast-related features are unavailable to use.

Create Multicast Domain

To create multicast domain, use the following steps.

  1. Go to Network > Transit Hub > Multicast.
  2. Click Create Multicast Domain to display the creation screen.
  3. On the creation screen, enter the information about multicast domain.
    • Name: Enter the name of multicast domain.
    • Description: Describe the description of multicast domain.
    • Transit hub: Select a transit hub where you want to create multicast domain.

Modify Multicast Domain

Multicast domain can be modified as follows. You can only change the name and description.

  1. Go to Network > Transit Hub > Multicast.
  2. Select multicast domain you want to modify from the list on the screen.
  3. Click Modify Multicast Domain to display the modification screen.
  4. On the modification screen, make changes to an item.

Delete Multicast Domain

To delete Multicast domain, use the following steps.

  1. Go to Network > Transit Hub > Multicast.
  2. Select multicast domain you want to delete from the list on the screen.
  3. Click Delete Multicast Domain to delete.

Manage Multicast

Check basic information for the selected multicast domain and manage the packet handling policy and settings associated with the multicast.

Basic Information

You can check the basic information for the selected multicast domain.

Multicast Association

Manage multicast associations join subnets of VPC-type attachments to multicast networks in multicast domains.

[Note] * Only attachment of VPC type is available on multicast association. * Attachment created in other project by transit hubs shared with other projects cannot be used in multicast association. * One subnet is only available to use on one multicast association throughout the entire NHN Cloud.This means that one subnet can only be attached to one multicast domain.

Create Multicast Association

To create multicast association, use the following steps. 1. Go to Network > Transit Hub > Multicast > Multicast Association. 2. Click Create Multicast Association to display the creation screen. 3. On the creation screen, enter the information about multicast association. * Attach: Select attachment to join the multicast network in multicast domain.

Delete Multicast Association

To delete multicast association, use the following steps. 1. Go to Network > Transit Hub > Multicast > Multicast Association. 2. Select Multicast Association you want to delete from the list on the screen. 3. Click Delete Multicast Association to delete.

Multicast Group

Network interfaces to participate in multicast communication provided by the multicast domain are managed as a multicast group. By configuring the multicast group, network interfaces with the same group IP address perform multicast communication with each other.

[Note] Only **Network Interface of VM Instance can be added as a multicast group.

Create Multicast Group

To create Multicast group, use the following steps.

  1. Go to Network > Transit Hub > Multicast.
  2. Click Create Multicast Group to display the creation screen.
  3. On the creation screen, enter the information about multicast domain.
    • Multicast association: Select multicast association.
    • Network interface: Select network interface.
    • Group IP Address: Enter the multicast IP address.

      [Note] * Must be entered in the range of 224.0.0.0/4. * 221.0.0.1 cannot be entered.

    • Type: Choose between member and source
      • Member
        Receive multicast packets whose destination is the group IP address.
        Network interface specified as a source in the same group cannot be specified as a member.
      • Source
        Send multicast packets whose destination is the group IP address.Only one network interface can be specified as a source for each group IP address.
        Network interface specified as a source in the same group cannot be specified as a member.
Delete Multicast Group

To delete multicast group, use the following steps.

  1. Go to Network > Transit Hub > Multicast > Multicast Group.
  2. Select multicast group you want to delete from the list on the screen.
  3. Click Delete Multicast Group to delete.

Shared Transit Hub

If you have shared transit hubs owned by other projects, you can check the list of shared transit hubs.

[Note] You can only check the list and the information of the selected item, and there is no setting available.

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