Cisco Unified Contact Center Enterprise Solution Reference ...

Chapter 11 Bandwidth Provisioning and QoS Considerations
Bandwidth Requirements for Gateway PG to System PG
OL-8669-05
Cisco Unified Contact Center Enterprise 7.x SRND
Bandwidth Provisioning
This section provides some basic guidelines for provisioning bandwidth for the connection between the
gateway PG and the system PG.
Bandwidth Requirements for Unified CCE Gateway PG to Central Controller
No special considerations are necessary for the PG-to-CC connection over other TDM PGs.
If agent reporting is not used, then the Enable Agent Reporting checkbox in the Agent distribution tab
of the PG explorer should be unchecked to avoid sending unnecessary data over the link. For more
information, see Bandwidth and Latency Requirements, page 11-8.
Bandwidth Requirements for Unified CCE Gateway PG to System PG
Figure 11-3 illustrates the connection between the parent PG/PIM and the child system PG.
Figure 11-3 Connection Between Gateway PG and System PG
Enterprise
IPCC with
System PG
(7.0) (Child)
Router/Logger
System
PG
CallManager IP IVR
CTI
SVR
Gateway
PG
IP IVR
GED-188
V11
PG to CC Connection is
expected to be deployed
over a WAN
Gateway to CTI-Server
connection is Highly
recommended to be local
Enterprise
ICM 7.0
(Parent)
Customer Legacy
ACD PG
Enterprise ICM
Router/Logger
Customer Legacy
ACD PG
Note Cisco does not recommend deploying the gateway PG remote from the system PG that it is monitoring.
The following factors affect the amount of data coming over the link once it is initialized:
Message sizes can vary depending upon their content (such as the size of extensions, agent IDs, and
call data). A Route Request with no data, for example, can be a very small message. If all call
variables and ECC variables are populated with large values, this will drastically affect the size of
the message.
Call scenarios can cause great variation in the number of messages per call that are transmitted over
the line. A simple call scenario might cause 21 messages to be transmitted over the line. More
complex call scenarios involving queuing, hold retrieves, conferences, or transfers will add greatly
to the number of messages per call that are transmitted over the line.
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