Use this task to configure communication between core groups that
are in the same cell.
Before you begin
Configure two core groups with application servers that are in
the same cell. For more information about when and how to configure multiple
core groups, see Creating a new core group.
Any time you configure multiple core groups that are in the same cell, you
must configure communication between the core groups.
Why and when to perform this task
Each core group has one or more defined core group access points.
A core group access point is a collection of network entry points for the
core group. The network entry points that are in a core group access point
are called bridge interfaces. An application server that hosts the bridge
interfaces is called a core group bridge server.
To configure communication
between core groups, define an access point group. An access point group defines
the core groups that can communicate with each other. Each access point group
has one core group access point for each core group. Select one or more servers
to be core group bridges, and define a bridge interface for each server.
See Core group communications using the core group bridge service for
more information about the core group bridge service.
Steps for this task
- Configure an access point group to define the core groups that
need to communicate. An access point group contains the core
group access points for the core groups that need to communicate. Core group
access points define the set of servers that provide access to the core group.
To configure communication between core groups that are in the same cell,
you can choose an existing access point group or create a new access point
group. To create an access point, complete the following steps:
- In the administrative console, click Servers > Core groups
> Core group bridge settings > Access point groups > New.
- Enter a name for the access point group that is unique within
the cell.
- Add core group access points to your access point group.
Choose any available core group access points for the core groups that
need to communicate in the cell. A default core group access point is created
whenever a core group is created. The access point group that you create must
have a core group access point for each core group in the cell.
Restriction: Do not add any peer access points. Add peer
access points only if you are configuring communication with a core group
in a different cell. If you need to communicate with core groups that are
outside of the cell, you must create another access point group that has one
core group access point and one or more peer access points. See
Creating advanced core group bridge configurations for more information.
If you use an existing access point group, choose an access point group
that does not have peer access points. To configure an existing access point
group, perform the following steps:
- In the administrative console, click Servers > Core groups
> Core group bridge settings. Your current configuration with
any existing access point groups is displayed.
- Verify that the access point group does not have any peer access
points. Peer access point groups are used for communication between
core groups in different cells. Click the access point group you want to configure
and ensure that no peer access points are listed.
- Click Access point groups > access_point_group_name >
Core group access points.
- Add core group access points to your access point group.
Choose any available core group access points for the core groups that
need to communicate. The access point group you create should have a core
group access point for each core group in the cell.
- Create bridge interfaces for each core group access point. The
bridge interfaces that you add provide access to the core group. Create
at least one bridge interface for each core group access point. To back up
your configuration, you should configure two or more bridge interfaces for
each core group access point. If a core group has multiple core group access
points, each core group access point must contain the same number of bridge
interfaces for the same set of servers. To configure bridge interfaces, perform
the following steps:
- In the administrative console, click Servers > Core groups
> Core group bridge settings > Access point groups > access_point_group_name >
Core group access points.
- Click a core group access point in the access point group. Click Show
Detail.
- To create a new bridge interface, click Bridge interfaces
> New.
- Select a node, server, and transport channel chain combination
for the bridge interface. Click OK. All the core group
access points in the access point group must have transport channel chains
with the same port name. The transport channel chain can be the DCS or DCS-secure
channel chains that are created for the DCS_UNICAST_ADDRESS transport chain.
- Consider creating at least two bridge interfaces for each access
point. If one bridge interface fails, the other can still be active.
- Repeat these steps to create bridge interfaces for each core
group access point in your access point group.
Result
The core groups that are in the same cell and configured in an access
point group can communicate.
Example
In cell_x, there are three core groups: x_core_group_1, x_core_group_2,
and x_core_group_3. Each core group already has a core group access
point. The following image shows an access point group between the core groups
in cell_x and an example of the configuration in the administrative
console.
Perform
the following steps to configure communication between the three core groups
in cell_x:
- Create an access point group named x_access_point_group. Add
a core group access point to the access point group for each core group that
is in the cell. In this example, add x_core_group_ap_1, x_core_group_ap_2,
and x_core_group_ap_3 to x_access_point_group.
- Create bridge interfaces for each core group access point. The following
diagram shows the bridge interfaces for x_core_group_ap_2:
Create two or more bridge interfaces
for each core group access point.
By creating an access point group and adding all core groups in the
cell to the access point group, you enabled communication between all the
core groups that are in cell_x.