Enterprise Campus
If your environment is a larger campus infrastructure with hundreds to thousands
of users, the Catalyst 6000 is geared toward this size network.The Catalyst 6000
Series can scale to hundreds of users per switch and provides the level of DSP
resources required for this size of deployment.The Catalyst 6000 is the backbone
of the IP telephony network, and supports the Cisco IP phones for power and
LAN connectivity.The Catalyst 6000 with the 8-port T1/E1 Voice and Services
module can support 256 conference participants. Depending on your company’s
www.syngress.com
Figure 6.4 Branch Office
IP WAN
PSTN
IP
IP
CallManager
DSP
IP
NetMeeting
G.723
Transcoding
Conferencing
DSPs Explained • Chapter 6 185
call traffic patterns, a single T1/E1 module could satisfy your needs. It communicates
with the Cisco CallManager to allocate DSP resources for conference
bridges and transcoding. Figure 6.5 illustrates a large campus infrastructure with a
CallManager cluster and multiple Catalyst 6000 switches with T1/E1 modules
acting as a DSP resource farm, in addition to providing PSTN and IP WAN connectivity.
The Catalyst 6000 has the scalability and performance to satisfy the
larger environment. In this CallManager cluster network, the DSP resources can
be provisioned and shared between the servers.