Automatically created links
Whenever a new subzone or zone is created, links are automatically created as follows:
New zone/subzone type Default links are created to...
Subzone Default Subzone and Traversal Subzone
Neighbor zone Default Subzone and Traversal Subzone
DNS zone Default Subzone and Traversal Subzone
ENUM zone Default Subzone and Traversal Subzone
Traversal client zone Traversal Subzone
Traversal server zone Traversal Subzone
Along with the pre-configured default links this ensures that, by default, any new subzone or zone has
connectivity to all other subzones and zones. You may rename, delete and amend any of these default links.
Note: calls will fail if links are not configured correctly. You can check whether a call will succeed, and what
bandwidth will be allocated to it, using the CLI command xCommand CheckBandwidth.
Configuring pipes
Pipes are used to control the amount of bandwidth used on calls between specific subzones and zones. The
limits can be applied to the total concurrent bandwidth used at any one time, or to the bandwidth used by any
individual call.
To apply these limits, you must first create a pipe and configure it with the required bandwidth limitations.
Then when configuring links you assign the pipe to one or more links. Calls using the link will then have the
pipe’s bandwidth limitations applied to them. See Applying pipes to links [p.232] for more information.
The Pipes page (Configuration > Bandwidth > Pipes) lists all the pipes that have been configured on the
VCS and allows you to create, edit and delete pipes.
The following information is displayed:
Field Description
Name The name of the pipe.
Total
bandwidth
The upper limit on the total bandwidth used at any one time by all calls on all links to which this
pipe is applied.
Per call
bandwidth
The maximum bandwidth of any one call on the links to which this pipe is applied.
Calls Shows the total number of calls currently traversing all links to which the pipe is applied.
Bandwidth
used
Shows the total amount of bandwidth currently being consumed by all calls traversing all links to
which the pipe is applied.
You can configure up to 1000 pipes.
See Applying bandwidth limitations to subzones [p.228] for more information about how the bandwidth limits
are set and managed.
Cisco VCS Administrator Guide (X8.1.1) Page 231 of 507
Bandwidth control
Links and pipes
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