Cisco Cisco Unified Contact Center Management Portal 11.0(1) Leaflet

Calculating bandwidth requirements for servers that have only one network interface card (NIC) requires 
adding the totals for each link entering the system. For example, for a standard reporting deployment 
with an Administration & Data Server, an Historical Data Server (HDS), and one NIC, you would 
calculate the required bandwidth as follows: 

Total bandwidth for reporting = Report data bandwidth + Reports bandwidth 

However, for a large reporting deployment, the bandwidth is calculated as follows: 

Total bandwidth for reporting = Report data bandwidth + WebView sever bandwidth 

Due to the nature of the recovery process, it is possible to experience a period of network slowdown 
during periods of recovery. 

The following sections describe the calculations necessary to determine bandwidth requirements for 
each network path shown in Figure 12-12 and Figure 12-13. 

The factors that affect the bandwidth between the Central Controller and an Administration & Data 
Server are calls per second (cps), the number of agents, and the use of Extended Call Context (ECC) 
variables. Test results indicate the following general guidelines: 

For every 10 cps, bandwidth consumption is about 42,000 bytes per second. 

10 agents require approximately 12,000 bytes per second. 

For each 1000 ECC bytes and 50 cps, the bandwidth consumption is 1,200,000 bytes per second. 

Unified CCE provides a bandwidth calculator that aids in determining the bandwidth requirements for 
report data. This calculator is available at 

http://www.cisco.com/en/US/products/sw/custcosw/ps1844/prod_technical_reference_list.html

 

WebView bandwidth becomes a factor only in large reporting deployments where the WebView servers 
are not co-resident with the Administration & Data Server. 

If WebView is deployed on separate servers, some configurations support up to four WebView Servers 
per Administration & Data Server. For more specific information on the number of supported WebView 
servers, refer to the Hardware & System Software Specification (Bill of Materials) for Cisco CCE 
Enterprise & Hosted Editions, Release 8.0(1), available at 

 

The factor that affects the bandwidth between the Administration & Data Server and a WebView server 
is the total number of reporting users who connect to the WebView server(s). Test results indicate that 
50 reporting users require approximately 314,573 bytes per second. A reporting user is defined as 
someone running: 

Two real-time reports refreshing every 20 seconds, with each report returning 50 or fewer rows. This 
is equivalent to running a monitoring script. 

One historical report per hour 

Half-hour historical reports are run for an 8-hour period 

Daily historical reports run for a 40-hour period