How Do I Ensure My Video Endpoints are Tuned for the Best Experience Possible?
How do I ensure my video endpoints are tuned for the best experience possible?
Sporadic packet loss at different locations on SX80 endpoints.
Where can I find the design models, recommendations, and guidelines for deploying Cisco Collaboration System products and solutions?
Common and typical functions that affects the call quality and stability:
| Firewall Functions | Router and Switch Functions | Other Devices |
| SIP and H323 Protocol Awareness or Inspections (It is not permitted for Telepresence, but people still do it.) | QoS - A step 1 question for bandwidth issues. | Riverbed - Protocol and packet filtering and bandwidth management. |
| ALG Fixup - If enabled this will adversely interfere with the VCS functionality. | Rate Queuing - A step 2 for both bandwidth and jitters/buffering issues | Packeteer - Packet shaping, load balancing and bandwidth management. |
| Packet Inspection - TCP inspection drops calls, and UDP inspections induces jitters. | Load Balancing - A wildcard for jitters/buffering issues, particularly across multiple routes, i.e split routes and/or carrier-circuits. | Microsoft WebSense - Protocol filtering. |
Cisco Collaboration System Solution Reference Network Designs (SRND) provides design models, recommendations, and guidelines for deploying Cisco Collaboration System products and solutions, including Cisco Unified Communications Manager 12.x, Cisco TelePresence System, and other components of Cisco Collaboration System Release (CSR) 12.x:
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