XO Communications announced a suite of network tools for giving its MPLS IP-VPN customers even greater levels of visibility and control over their business applications by using a private web-based interface to select between three service levels.
The XO Applications Performance Management suite provides real-time and historical network, server and applications statistics. 
XO Applications Performance Management is fully integrated with XO MPLS IP-VPN, XO’s private, managed wide area networking solution that enables businesses to connect offices, customers and partners and converge a wide range of voice, video and data applications over a single IP network infrastructure. The three tiers include:
Tier 1 — Network Performance: Provides a comprehensive, up-to-the-minute snapshot of network performance, including:
- Analysis of physical access type, port and circuit;
- Traffic flows by location from the physical to the application layer;
- Live views of service-level metrics such as packet delay, packet delivery ratio, Jitter and availability;
- End-to-end performance validation of every XO Class of Service and bandwidth use by Class of Service; and
- Network layer troubleshooting alarms.
Tier 2 — Network and Applications Performance: Provides all of the capabilities of Tier 1, plus:
- Protocol analyzer capabilities that capture live traffic of applications across all locations;
- Autodiscovery of applications, services and users across the entire network;
- Monitoring of server connect and response times; and
- Threshold alarms for applications and servers.
Tier 3 — Network, Applications and VoIP Performance: Provides all of the capabilities of Tier 1 and 2, plus:
- VoIP performance troubleshooting;
- Autodiscovery of VoIP calls, call managers and handsets;
- Individual call forensics, including MOS score and Jitter measurements; and
- Long-term VoIP performance trending reports for network readiness assessments.