Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Bandwidth control
Enabling and disabling membership rules
When you are making or testing configuration changes to your membership rules, you may want to
temporarily enable or disable certain rules. You can do this by selecting the rule's check box and
clicking Enable or Disable as appropriate. Any disabled rules still appear in the membership rules list
but are ignored by the VCS when processing registration requests.
temporarily enable or disable certain rules. You can do this by selecting the rule's check box and
clicking Enable or Disable as appropriate. Any disabled rules still appear in the membership rules list
but are ignored by the VCS when processing registration requests.
Applying bandwidth limitations to subzones
You can apply bandwidth limits to the Default Subzone, Traversal Subzone and all manually
configured subzones. The limits you can apply vary depending on the type of subzone, as follows:
configured subzones. The limits you can apply vary depending on the type of subzone, as follows:
Limitation
Description
Can be applied to
Total
Limits the total concurrent bandwidth being used by all
endpoints in the subzone at any one time. In the case
of the Traversal Subzone, this is the maximum
bandwidth available for all concurrent traversal calls.
endpoints in the subzone at any one time. In the case
of the Traversal Subzone, this is the maximum
bandwidth available for all concurrent traversal calls.
Default Subzone
Traversal Subzone
Manually configured
subzones
subzones
Calls entirely
within...
within...
Limits the bandwidth of any individual call between
two endpoints within the subzone.
two endpoints within the subzone.
Default Subzone
Manually configured
subzones
subzones
Calls into or
out of...
out of...
Limits the bandwidth of any individual call between an
endpoint in the subzone, and an endpoint in another
subzone or zone.
endpoint in the subzone, and an endpoint in another
subzone or zone.
Default Subzone
Manually configured
subzones
subzones
Calls
handled by...
handled by...
The maximum bandwidth available to any individual
traversal call.
traversal call.
Traversal Subzone
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.
Use subzone bandwidth limits if you want to configure the bandwidth available between one specific
subzone and all other subzones or zones.
subzone and all other subzones or zones.
Use pipes if you want to configure the bandwidth available between one specific subzone and
another specific subzone or zone.
another specific subzone or zone.
If your bandwidth configuration is such that multiple types of bandwidth restrictions are placed on a
call (for example, if there are both subzone bandwidth limits and pipe limits), the lowest limit will
always apply to that call.
call (for example, if there are both subzone bandwidth limits and pipe limits), the lowest limit will
always apply to that call.
How different bandwidth limitations are managed
In situations where there are differing bandwidth limitations applied to the same link, the lower limit will
always be the one used when routing the call and taking bandwidth limitations into account.
always be the one used when routing the call and taking bandwidth limitations into account.
For example, Subzone A may have a per call inter bandwidth of 128. This means that any calls
between Subzone A and any other subzone or zone will be limited to 128kbps. However, Subzone A
also has a link configured between it and Subzone B. This link uses a pipe with a limit of 512kbps. In
between Subzone A and any other subzone or zone will be limited to 128kbps. However, Subzone A
also has a link configured between it and Subzone B. This link uses a pipe with a limit of 512kbps. In
Cisco VCS Administrator Guide (X6.1)
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