# Presentation: 636367

## NISN IP SLA Implementation

- NISN Quarterly Customer Videocon
- January 26, 2009
- Ken White

##  Solution Overview

- Deployed  nineteen small routers
- Deploy one to each site (center and CIEF) and connect it to SIP, PIP, and OOBA
- Configure Virtual Private Network (VPN) Routing and Forwarding (VRF) instances for SIP and PIP
- PIP will provide connectivity to NTP and ENMS systems
- SIP VRF providing IP and routing separation from PIP
- Each router is capable of supporting hundreds of IP SLA tests
- Bandwidth, CPU, and memory within the router specification
- Deploy configurations on IP SLA initiators supporting UDP jitter
- Track uni and bi-directional jitter (positive and negative), latency, packet loss, and VoiP Mean Opinion Score (MOS).
- Scheduling and threshold alert settings
- Currently use eHealth to track, report, and can alarm on IP SLA statistics (has not been implemented)

## Implementation Overview

- Each IP SLA generates 88.8Kbps (1.776Mb stream transmitted over 20 seconds) per site/per test/per network (SIP and PIP)
- It was estimated  each site will generate 6Mbps
- Assume two SIP and two PIP streams with two different CoS markings
- Utilization rate has not been verified
- IP SLA was deployed  to measure jitter, latency, packet loss, and VoIP Mean Opinion Score (MOS) across SIP and PIP. IP SLA will assist in creating a baseline for network performance in order to support VoIP, QoS/CoS, and other future requirements.
- Deploy Cisco 2821 routers at each NASA center and CIEF location
-  ARC, DFRC, FM GRC, GSFC, HQ, JPL, JSC, KSC, LRC, MAF, MSFC, SSC, WSC,   ATL, BAY, CHI, DAL, DC
- Does not include BLDR, WSTF or VAFB

- Connected the IP SLA  router with Cat 5 UTP to the SIP, PIP, and OOBA network
- Deploy router expansion modules, install switches, or upgrade to higher density switches at certain sites to fix OOBA port saturation conditions
- IP SLA implemented  to generate SLA tests across NISN network

## Network Assessment

**IP SLA solution  generates  approximately 55Mbps**
- Distributed among 19 Center/CIEF locations (~3Mbps each)
- Future CoS markings will increase the bandwidth requirement proportionally (in addition to CPU and memory requirements)
**Each NASA center can support additional 3Mbps**
- Additional full-mesh tests, to include CoS markings, will increase each centers bandwidth requirement
**OOBA port availability was  saturated at the following sites with the addition of an SLA router**
- FM
- No 2811 9-port Ethernet Switch Module installed;  procured HWIC-D-9ESW
-  GSFC, MSFC, ARC
- Existing 12 port switch saturated; procured 24 port switch
- JPL, KSC, LARC
- No 2811 Ethernet ports free;  added new Ethernet switch

## Sketch (After)

## NISN has  the ability to baseline and track critical metrics to support VoIP and ViIP.

Current NSD metrics will be updated to reflect Latency, Jitter, and Packet Loss.

Collect VOIP MOS numbers 

Discussion to integrate into the current  Netperform system to provide more accurate information.

- NISN has  the ability to baseline and track critical metrics to support VoIP and ViIP.
- Current NSD metrics will be updated to reflect Latency, Jitter, and Packet Loss.
- Collect VOIP MOS numbers
- Discussion to integrate into the current  Netperform system to provide more accurate information.