Network Troubleshooting¶
5.8 Network Validation Checklist¶
5.8.1 Pre-Deployment Validation¶
| Test | Command/Method | Expected Result | Pass |
|---|---|---|---|
| DNS resolution | nslookup webex.com |
Public IP returned | [ ] |
| DNS resolution | nslookup wbx2.com |
Public IP returned | [ ] |
| HTTPS connectivity | curl -I https://admin.webex.com |
HTTP 200/301 | [ ] |
| Media ports | nc -u webex-media-test 19560 |
Connection open | [ ] |
| No SSL intercept | Browser -> webex.com -> Certificate | DigiCert CA | [ ] |
| QoS marking | show policy-map interface |
EF queue active | [ ] |
| Bandwidth test | iperf3 to cloud endpoint |
>50 Mbps sustained | [ ] |
5.8.2 Webex Network Test Tool¶
# Run Webex network test from client
# URL: https://mediatest.webex.com
# Expected Results:
# - UDP connectivity: PASS
# - TCP fallback: PASS
# - Bandwidth: >2 Mbps
# - Latency: <150ms
# - Jitter: <30ms
# - Packet loss: <1%
5.8.3 LGW Connectivity Validation (India)¶
| Test | Command | Expected Result |
|---|---|---|
| Webex registration | show voice register status |
Registered |
| TLS certificate | show crypto pki certificate |
Valid, not expired |
| SIP trunk to PSTN | show sip-ua status |
Active |
| Test call | Dial PSTN from Webex user | Completes via LGW |