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====== Apache Traffic Server ======

Apache Traffic Server (ATS) is used as a caching proxy for TiVo content delivery at the NTT Sacramento data center. It runs on Edge2 and DemoCache servers.

===== Edge2 (Primary ATS Server) =====

^ Attribute ^ Value ^
| **Hostname** | edge2 |
| **Type** | VMware VM (on nttesxi1) |
| **OS** | AlmaLinux 9.5 (Teal Serval) |
| **Role** | TiVo Parent Cache / ATS Cache |
| **ATS Version** | 9.2.8 (Jan 30 2025) |
| **Public IP** | 68.66.14.156/29 |
| **Encoder IP** | 172.17.240.135/28 |

==== Network Interfaces ====

^ Interface ^ IP Address ^ VLAN ^ Purpose ^
| ens41 | 68.66.14.156/29 | 68 | Public Internet (Packet Fabric) |
| ens40 | 172.17.240.135/28 | 240 | Encoder Network |
| ens37 | 172.17.240.13/29 | 10 | Admin |
| ens36 | 10.100.2.30/24 | 200 | TiVo Public |
| ens35 | 172.17.240.27/29 | 26 | DMZ |

==== ATS Configuration ====

^ Metric ^ Value ^
| Listening Ports | 80, 443 (SSL/HTTP2) |
| Cache Total | 274 GB (~256 GB usable) |
| Cache Used | 99.99% |
| RAM Cache | Auto (-1) |
| Proxy Name | live-fcm.telev8.live |

==== Key Services ====

^ Service ^ Status ^ Description ^
| trafficserver.service | Running | Apache Traffic Server 9.2.8 |
| frr.service | Running | FRRouting (BGP/PIM) |
| firewalld.service | Running | Host firewall |
| sshd.service | Running | SSH server |

===== DemoCache =====

^ Attribute ^ Value ^
| **Hostname** | democache1 |
| **Type** | Physical Server (HP ProLiant DL360) |
| **OS** | AlmaLinux 9.5 |
| **Role** | Demo Cache Server |
| **Public IP** | 68.66.14.155/29 |
| **Admin IP** | 172.17.240.14/29 |
| **TiVo IP** | 10.100.2.20/24 |

===== Routing =====

Edge2 learns BGP routes from [[vyos|NTT-BGP1]] for TiVo internal networks:

^ Destination ^ Gateway ^ Notes ^
| default | 68.66.14.153 | Primary (Packet Fabric) |
| 10.100.1.0/24 | 172.17.240.129 | BGP from VyOS |
| 10.173.x.x | 172.17.240.129 | TiVo networks (BGP) |
| 172.17.x.x | 172.17.240.129 | Internal networks (BGP) |

===== Monitoring =====

ATS metrics are collected by the **Telev8 ATS Dashboard** running on NTT-Media2:

  * **Dashboard URL:** https://nttmedia2.telev8.live:3000
  * **Pipeline Service:** telev8-pipeline.service (port 18000)
  * **Data Source:** ATS logs imported and aggregated

===== Access =====

<code bash>
# Direct SSH (public)
ssh mmunger@68.66.14.156

# ATS status check
sudo traffic_ctl server status
sudo traffic_ctl metric get proxy.node.cache.bytes_used
</code>

===== Related Pages =====

  * [[virtual_machines|Virtual Machines]]
  * [[physical_hardware|Physical Hardware]]
  * [[vyos|NTT-BGP1 (VyOS Router)]]
  * [[ssh_access|SSH Access]]