1. UVA work items  Provisioning across CHEETAH and UltraScience networks Transport protocol for dedicated circuits: Fixed-Rate Transport Protocol (FRTP) Extend CHEETAH concept to enable heterogeneous connections – “connection-oriented internet” Malathi Veeraraghavan

2. UltraScience Network ORNL ChicagoSeattle Sunnyvale CHEETAH Network Peering OC192 Sycamore SN16000 GbE/10GbE Compute and viz clusters GbE/10GbE Compute and viz clusters OC192 through Atlanta Sycamore SN16000 NC NCSU OC192 Ciena Core Director CI OC192 Ciena Core Director CI Ciena Core Director CI Ciena Core Director CI OC192 Sycamore SN16000 GbE/10GbE Compute and viz clusters

3. Distributed provisioning in CHEETAH: GMPLS testing completed Ciena Core Director CI OC192 ORNL Ciena Core Director CI Ciena Core Director CI Ciena Core Director CI ChicagoSeattle Sunnyvale OC192 Sycamore SN16000 GbE/10GbE Compute and viz clusters Sycamore SN16000 GbE/10GbE Compute and viz clusters OC192 GbE/10GbE Compute and viz clusters OC192 through Atlanta Sycamore SN16000 TSI scientists start SFTP or Viz. app Path Resv Map GbE port to 21 OC1s on OC192 port Map 21 OC1s on OC192 port to GbE port RSVP-TE Path Ethernet frame with ORNL dest. host MAC address on Ethernet PHY Same Ethernet frame encapsulated in SONET frame Ethernet frame pealed off and delivered to host Path message routing on destination IP address

4. Extend distributed provisioning across CHEETAH and UltraScienceNet Ciena Core Director CI OC192 ORNL Ciena Core Director CI Ciena Core Director CI Ciena Core Director CI ChicagoSeattle Sunnyvale OC192 Sycamore SN16000 GbE/10GbE Compute and viz clusters Sycamore SN16000 GbE/10GbE Compute and viz clusters OC192 GbE/10GbE Compute and viz clusters OC192 through Atlanta Sycamore SN16000 Start SFTP or Viz. app RSVP-TE Path Map 21 OC1s between 2 OC192 ports Resv GMPLS interop of Sycamore and Ciena demo’ed in Supercomm Cray X1 NERSC supercomputer NCSU NC

5. Value and pending issues Value of distributed provisioning –Removes humans from the loop –Simplifies network growth Pending issues –Security in the control-plane –Inter-domain routing –Scheduling (book-ahead) connections handle external to switches initiate Path messages with high preemption priority just before the scheduled time

6. UVA work items Provisioning across CHEETAH and UltraScience networks  Transport protocol for dedicated circuits: Fixed-Rate Transport Protocol (FRTP) Extend CHEETAH concept to enable heterogeneous connections – “connection-oriented internet” Malathi Veeraraghavan

7. Fixed-Rate Transport Protocol (FRTP) for dedicated circuits Our first cut solution –NULL Congestion Control and NULL Flow Control –i.e. Sending rate is not altered during the flow –Blast away at the rate of the circuit –What we found: Losses occur on disk-to-disk transfers at high rates Why? Receiver’s buffer overflows –Thinking: set up circuit at rate that the receiver can handle Avoid losses

8. Experimental results FRTP throughput FRTP packet-loss rate CIRCUIT RATE (Mbps) CIRCUIT UTILIZATION (%) RELATIVE TRANSFER DELAY 200901.7 590621.0

9. Next iteration Choose a circuit rate based on user’s objective - delay and utilization combo For a given circuit rate –Test window and on/off flow control schemes against this blast-take-losses- and-retransmit NULL flow control approach

10. UVA work items Provisioning across CHEETAH and UltraScience networks Transport protocol for dedicated circuits: Fixed-Rate Transport Protocol (FRTP)  Extend CHEETAH concept to enable heterogeneous connections – “connection-oriented internet” Malathi Veeraraghavan

11. Connection-oriented internet Cisco and Juniper routers implement –MPLS (user-plane) –RSVP-TE (control-plane) Many vendors’ Ethernet switches –Untagged (port-mapped) VLANs –Tagged VLANs with priority queueing –Add external GMPLS controller

12. Implement and deploy software to enable heterogeneous connections GbE/10GbE Compute and viz clusters GMPLS-controlled SONET networks e.g., UltraScienceNet- CHEETAH GMPLS-controlled VLAN-capable Ethernet switches e.g., enterprise nets Compute and viz clusters Compute and viz clusters Compute and viz clusters GMPLS-controlled all-optical WDM networks e.g., Dragon, OMNInet GMPLS-controlled MPLS-capable IP router-based networks e.g., Abilene