Cisco TRC5 CTS-RMT-TRC5= User Manual
Product codes
CTS-RMT-TRC5=
19
Deployment Details
August 2012 Series
19
Procedure 8
Configure VCS default bandwidth
Cisco VCS uses the concept of pipes and links to control the bandwidth
between locations. The bandwidth settings for calls within a single subzone
are controlled by the default call settings configured in the endpoints.
between locations. The bandwidth settings for calls within a single subzone
are controlled by the default call settings configured in the endpoints.
The VCS bandwidth configuration page allows you to define
a default call bandwidth for endpoints that do not specify an
amount in their call signaling.
a default call bandwidth for endpoints that do not specify an
amount in their call signaling.
Tech Tip
Step 1:
Navigate to
VCS configuration > Bandwidth > Configuration
, enter
the following values, and then click
Save
:
• Default call bandwidth—
384
• Downspeed per call mode—
On
• Downspeed total mode—
On
Creating Pipes and Links
1. Create pipes
2. Create links
Process
Pipes and links allow you to manage the number of video calls placed over
your WAN. They also allow you to specify the amount of bandwidth per call.
your WAN. They also allow you to specify the amount of bandwidth per call.
Each location needs a link to all other locations and a single pipe to define
the total amount of bandwidth allowed in and out of the subzone.
the total amount of bandwidth allowed in and out of the subzone.
Figure 4 - Links in foundation architecture
Subzone: SZ_HQ
IP Subnet: 10.4.0.0/17
IP Subnet: 10.4.0.0/17
Subzone: SZ_Remote_2
IP Subnet: 10.5.80.0/21
IP Subnet: 10.5.80.0/21
MCU
Nexus 5500
Unified CM
Unity Connection
Data Center
Firewalls
Firewalls
WAN
Router
Internet Edge
Firewalls & RA-VPN
WAN Routers
Wireless LAN
Controllers
WAAS
Access
Switches
Distribution
Layer 6500
VSS Switch
Layer 6500
VSS Switch
ACE
WAAS
Central
Manager
Nexus
2000
Storage
UCS Rack-mount Servers
for NTP, DNS, and Syslog
Access
Switch
Collapsed
LAN Core
LAN Access
Remote Site
1066
User
Teleworker /
Mobile Worker
MPLS
WANs
WANs
Internet
PSTN
Headquarters
Data Center
WAN Aggregation
Internet Edge
Access
Switch
Stack
WAN
Routers
Remote Site
WAAS
Wireless
IP Phone
Wireless
IP Phone
IP Phone
Wireless
IP Phone
IP Phone
V
V
V
V
V
Executive
System
Video
Communication
Servers
Communication
Servers
Mulitpurpose
Room System
Subzone: SZ_Remote_1
IP Subnet: 10.5.0.0/21
IP Subnet: 10.5.0.0/21
LK_HQ-R1
LK_R
1-R2
LK_HQ-R2
Mulitpurpose
Room System
Executive
System
The pipes have to be created first because they are needed to configure the
new links. Pipes define the amount of bandwidth per call and the total band-
width in and out of one end of a given link for the subzone. Pipes protect
the underlying architecture by restricting the amount of bandwidth entering
the low-latency queues defined in the WAN routers. If the queues in a WAN
router are overrun by high-priority traffic, all of the calls are degraded. When
the Cisco VCS pipe feature determines there is not enough bandwidth for
a given call, the endpoint receives a “resources unavailable” message from
Cisco VCS.
new links. Pipes define the amount of bandwidth per call and the total band-
width in and out of one end of a given link for the subzone. Pipes protect
the underlying architecture by restricting the amount of bandwidth entering
the low-latency queues defined in the WAN routers. If the queues in a WAN
router are overrun by high-priority traffic, all of the calls are degraded. When
the Cisco VCS pipe feature determines there is not enough bandwidth for
a given call, the endpoint receives a “resources unavailable” message from
Cisco VCS.
The bandwidth for the pipes is defined as 1536 kbps for the HQ site and
384 kbps for each remote location. This bandwidth allows four calls into the
HQ location and one call to each remote site. In the Borderless Networks
Foundation, the low-latency bandwidth for video has been set to 23 percent
of the defined bandwidth of a given connection. The specified configuration
works with a minimum of a 2-Mbps connection at the remote sites and an
8-Mbps connection at the HQ site. If more calls are needed at a location, you
need additional bandwidth for the pipe in that location.
384 kbps for each remote location. This bandwidth allows four calls into the
HQ location and one call to each remote site. In the Borderless Networks
Foundation, the low-latency bandwidth for video has been set to 23 percent
of the defined bandwidth of a given connection. The specified configuration
works with a minimum of a 2-Mbps connection at the remote sites and an
8-Mbps connection at the HQ site. If more calls are needed at a location, you
need additional bandwidth for the pipe in that location.