The UAG Trace Analyser is a specialized diagnostic tool used to analyze log files and packet captures (tcpdump) generated by the Omnissa (formerly VMware) Unified Access Gateway (UAG). It optimizes network performance by parsing granular log data to pinpoint latency bottlenecks, protocol mismatches, misconfigured routing tables, and traffic drops within the DMZ. How to Collect Traces for Analysis
Before analyzing network performance, you must gather high-fidelity logging and packet trace bundles directly from the UAG appliance.
Elevate Log Levels: Log into the UAG Admin UI, navigate to Support Settings, and shift the log levels for core components (like the Horizon Edge Service or Blast/PCoIP secure gateways) from INFO to DEBUG or TRACE.
Capture Network Packets: Use the built-in packet capture tool in the UAG console to trigger a tcpdump. Run this capture while users are experiencing performance issues or latency spikes.
Download the Bundle: Export the complete log zip bundle via the Admin UI support tab. Key Performance Optimization Workflows
Once the log bundle is loaded into the UAG Trace Analyser tool, target these primary network components to optimize performance: 1. Identify Edge Routing Inefficiencies
Multi-NIC UAG deployments often suffer from suboptimal paths or “asymmetric routing,” where return traffic takes a slower path.
Check the Diagnostic: The tool parses the route -n and networkctl files inside the bundle.
The Fix: Ensure there is only one default gateway mapped to the external interface (Internet-facing). Configure precise static routes on the internal interfaces to direct backend VDI and RDSH traffic directly to their respective internal subnets, reducing hops and packet delays. 2. Troubleshoot Display Protocol Latency (Blast & PCoIP)
High round-trip time (RTT) and jitter destroy virtual desktop user experiences.
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