Cisco Cisco Expressway Maintenance Manual
You must ensure that the port range is large enough to support the maximum number of traversal calls
available on your Expressway. A single traversal call can take up to 40 ports. So for example, if your
Expressway is licensed for 5 calls you must ensure that the range of ports configured for traversal media is at
least 200. If you add extra rich media session licenses to your system, you must also ensure that the range
of ports available is sufficient.
available on your Expressway. A single traversal call can take up to 40 ports. So for example, if your
Expressway is licensed for 5 calls you must ensure that the range of ports configured for traversal media is at
least 200. If you add extra rich media session licenses to your system, you must also ensure that the range
of ports available is sufficient.
Applying bandwidth limitations to the Traversal Subzone
You can apply bandwidth limits to the Traversal Subzone as follows:
Limitation
Description
Total
Limits the maximum bandwidth available for all concurrent traversal calls.
Calls handled by...
The maximum bandwidth available to any individual traversal call.
For all the above limitations, the Bandwidth restriction setting has the following effect:
n
No bandwidth: no bandwidth is allocated and therefore no calls can be made.
n
Limited: limits are applied. You must also enter a value in the corresponding bandwidth (kbps) field.
n
Unlimited: no restrictions are applied to the amount of bandwidth being used.
If your bandwidth configuration is such that multiple types of bandwidth restrictions are placed on a call (for
example, if there are subzone bandwidth limits and pipe limits), the lowest limit will always apply to that call.
example, if there are subzone bandwidth limits and pipe limits), the lowest limit will always apply to that call.
Cisco Expressway Administrator Guide (X8.2)
Page 175 of 378
Bandwidth control
About subzones