Specifications
Page 110 /148
3.4.2.2 VoIP Aware VPNs
VoIP is gaining momentum in enterprises, and service providers are planning
to introduce it to homes soon. Although the market for VoIP is in the early
adopter stage, it is a key planning issue for service providers today. VoIP
traffic will be sourced by IP telephones or by the CE router itself.
VoIP packets may have IP precedence set at different levels. For example,
Cisco IP phones currently use IP precedence level of 5, however, other
phones may use different levels. To prevent issues where certain IP phones
may receive higher priority of handling than other IP phones, the ISP should
be able to configure the PE router so it automatically sets all VoIP traffic to
the same IP precedence level. This guarantees all VoIP traffic to receive
higher priority than data traffic so quality is not compromised. However, if
data traffic is also prioritized, than the data priority should be lower than the
VoIP priority.
3.4.2.3 Juniper Networks’s Key Propositions
Juniper Networks can offer value propositions with stronger performance
inall categories. Juniper Networks is able to offer VPN access and QoS
policies, while allowing for performance and scalability.
Feature Juniper Network’s Support
Scalability YES
Standards-based YES
Interoperates with Cisco’s IOS YES
Flexible architecture YES
End-to-end priority services YES, at wire rate
Consolidation (Voice, Video, Data) YES
Traffic engineering YES
VPN Access Policy YES, at wire rate
VPN QoS Policy YES, at wire rate
VoIP Aware VPNs YES, at wire rate