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222 Configuring Enterprise Edge Services
Enterprise Edge 2.0 Programming Operations Guide P0911588 Issue 01
3. Press the Tab key to save the settings.
Premium
Bandwidth
Allows you to specify, in percentages, the WAN bandwidth reserved for
premium traffic.
Choose a value for this box based on the link speed, the codecs used by VoIP
gateway, the sample rate and the number of concurrent phone calls (from
internal VoIP gateway) and other H.323 sessions (like Microsoft NetMeeting
traffic) you intend to carry over the WAN link. Refer to
WAN Overview
on page 49 for more information on this topic.
Make sure you allocate at least the bandwidth necessary to carry as many
phone calls as specified in 'Number of Phone Ports' box below. Otherwise, the
QoS provider sees the inconsistent configuration and disables itself when
system boots next time, resulting in broken connectivity.
Any additional bandwidth that is more than what is required to carry the
phone calls is available for other H.323 sessions, like NetMeeting sessions
from PCs connected to Enterprise Edge box or other data traffic classified as
premium, through QoS Filters. This additional bandwidth reserved for
premium traffic is always available for other data traffic if there is no
additional H.323 traffic or other premium traffic.
A network administrator can reserve more WAN bandwidth than that required
to carry phone calls and then prevent PC users from using it for NetMeeting
sessions by setting filters that drop H.323 traffic at LAN interfaces.
Video Class Allows you to specify the type of priority treatment for video traffic in H.323
sessions.
The following choices are available:
Premium: Video traffic is treated as premium traffic that consumes portions
of bandwidth reserved for premium traffic (Premium Bandwidth box).
Best Effort: Video traffic is treated as best effort IP traffic that are prioritized
among other best-effort traffic passing through the WAN link.
Premium DS
Code
Allows you to specify the TOS setting in the IP header for premium packets.
This value is used in conjunction with the frame relay driver in Enterprise
Edge's WAN link, if one is being used, as well as rest of the network.
If the frame relay is used on WAN link, this code should match the DS Code
setting in frame relay settings so that frame relay network treats this traffic as
high-priority.
If rest of the network is diffserv capable, all routers that carry VoIP traffic
from theEnterprise Edge server must be configured to treat the traffic with this
DS code as high-priority or premium traffic.
Number of Phone
Ports
Allows you to specify the number of phone ports.
This value specifies the number of concurrent phone calls user intends to carry
over the WAN interface. QoS Provider layer uses this value to determine how
much of the bandwidth reserved for premium traffic is consumed by internal
VoIP gateway and how much is left over for other H.323 or other classified
premium traffic.
Attribute Description
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