Ron Lambert (Computer Infrastructure Services South) & Chris Smith (AURA-O)

1 AURA Users Mtg: Networks

 Mission to provide base to summits and international network connectivity for all tenants operating under the AURA umbrella, including other Institutions with specific MOUs, e.g. NRAO/ALMA, Carnegie/Las Campanas.

  Prior to 2011/2012, the network services were of limited bandwidth, funded solely by NOAO and Gemini.

2 AURA Users Mtg: Networks

  International links ◦  ~1985-1995: NASA satellite link from Tololo to

Ames, FL providing 56Kbps ◦  1995-2000: Entel ISP providing 256Kbps,

increasing to 4Mbps ◦  2005-present: REUNA+Ampath providing

50Mbps, then 155Mbps, and now 622Mbps  Mountain Links ◦  1985-2000: Collins Microwave 64Mbps ◦  2000-present: Harris Microwave w/ dual

155Mbps, expandable to 624Mbps

3 AURA Users Mtg: Networks

 Transition to robust high-speed network ◦  ~1Gbps total, shared ◦ Multiple paths to U.S. mainland

  Supporting growing number of users ◦ Two fundamental classes:   “low volume/basic connectivity”   “high volume/mission critical”

 Requires shared cost model to fund operations, maintenance, and upgrades

4 AURA Users Mtg: Networks

 National Link: ~$150K/yr ◦ REUNA (Chilean equivalent of Internet2) ◦ Membership + 1Gbps

  International Link: $200K/yr ◦  LAUREN+AmLight (NSF supported link) ◦ Currently 622Mbps, planned 1Gbps

 O&M: $140K/yr ◦  including only 0.5FTE + hardware + training

5 AURA Users Mtg: Networks

  “Basic Connectivity” ◦ Access to infrastructure (includes base of

operations & maintenance cost + 10Mbps) ◦  $10K/year

  “High Volume / Mission Critical” ◦ Needing 10 – 100 Mbps for larger volume

data transfer, burstable to almost 1Gbps ◦  $75K/year

 Not metered, but Monitored

6 AURA Users Mtg: Networks

1.  Research traffic (.edu) 592Mbps

2.  International Commodity traffic 30Mbps

3.  National Commodity traffic 10Mbps

4.  REUNA National Backbone 30Mbps

5.  SOAR direct vlan to Brazil 10Mbps

6.  Entel emergency link (pending) 20Mbps

7 AURA Users Mtg: Networks

2x 155Mbs

2x 155Mbs

SOAR ALO GEMINI

CTIO SMARTS WHAM PROMPT Yale/ESO KASI SARA LCOGT

GEMINI SOAR/NOAO/AURA

Pachon

Tololo

La Serena La Serena

EXTERIOR 8 AURA Users Mtg: Networks

Cerro Pachon

Cerro Tololo

Cerro Tololo

La Serena

10Mbs Private

20Mbs Entel

9 AURA Users Mtg: Networks

La Serena POP

AURA DWDM

DWDM

SDHd

SDHd

Santiago POP

REUNA

NRAO

1 Gbit/sec

2.5Gbit/sec

hjGlobal Xing POP

20 Mbs

ENTEL

10 AURA Users Mtg: Networks

CURRENT PATH

AURA Users Mtg: Networks 11

AURA Users Mtg: Networks 12

Cut over to 622Mbs

Graph showing latency and uptime between La Serena and Miami.

Note latency decreased when we switched to the west coast with 622Mbs

AURA Users Mtg: Networks 13

Graph demonstrating latency and uptime on the AURA Campus backbone

AURA Users Mtg: Networks 14

  International Link upgrade to 1Gbps  Ring Protection in Santiago  Emergency Backup link off Recinto (Entel)   Improved Backup links on AURA Campus

Backbone  Move Mountain Backbone Equipment to

stand-alone building on C. Pachón  Tenants isolated to autonomous subnets

15 AURA Users Mtg: Networks

 LSST: massive data transfer requirements ◦  100-200Gbps from mountain to base ◦ >15TB/night to U.S., possibly in real time!

 LSST construction plans ◦  Fiber bundle connecting summits to base,

allowing 1Gbps to 100Gbps ◦  40Gbps to 80Gbps international link

16 AURA Users Mtg: Networks