Brief Update from Operation-TF

UDBox Status Total 12 Boxes –6 Shipped to Partner ITB/AIT/ASTI/USC/USM/AIMST AIT has trouble on the BOX –1 Operational in SFC –3 Stocked in SFC –2 Broken in SFC SONY Box operation on UDL –More than 10

Proposal on UDL Receiver Purchase additional UDbox to distribute to SONY-Box partners No technical support available for SONY-* 13Mbps + Standard codec –Need Section Packing mode of MPEG-2 TS –ULE(?) as a light-weight data link protocol

Topics Two-UDL Experiment UDL 13Mbps Status Satellite Link Utilization

Two-UDL Experiment

Result: Failed Cisco bridge at BDL doesn t forward Ethernet frames due to MAC learning –MAC filtering at catalyst doesn t help Fallback Plan as solution based on the current situation –SFC transmit 128Kbps Minimum just for routing protocol exchange –Partner transmit 1Mbps/0.5Kbps Feedback and commodity from partner site –Design the routing so that traffic goes from SFC to partner via UDL, and from partner to SFC via BDL

Experiment Topology FR RR Catalyst F Catalyst R UDStation SDM 2020 Upcon UDbox Cisco B SDM 300A Ethernet Serial Coax

Two-UDL Fallback Plan sfc-sat2udl-feed bdl-gwrr GW 128k512k or 1M 13M

13Mbps Status

UDL 13Mbps Status Status: Not completed yet –Failure on SFC SONY-Feed Suitable configuration not implemented No technical support –Failure on JSAT SONY-Feed Suitable configuration not implemented Availability unknown for technical support –Failure on UDStation JSAT codec not completed (Need padding for SONY-BOX) Modify to activate Pdding on UDStation

What is the cause of failure? JSAT codec is not completed on UDstation –UDstation uses packing –Padding is not available on SONY-Receiver, which causes packet loss on SONY-Receiver when it receives traffic What is padding / section packing? What does UDStation (Section Packing) causes on SONY-RECV (Padding-only)? Performance / Interoperability Problem? –When we send packet no to cause section packing … UDStation -> UDbox is Good UDStation -> SONY-box is bad

Padding and Section Packing Padding Section Packing

Direction Wait for UDstation completing the JSAT codec Migrate to UDstation from SONY-FEED Migrate to 13Mbps –Feed: UDstaion –Receiver; SONY-BOX + UDbox Be careful not to disturb SOI-Asia Classes –Detail is in the next page

Todos & Schedule ~ Beginning of May –Complete JSAT codec on UDStation to migrate from SONY-Feed ~ Middle of May –Test 13Mbps configuration in IF Environment UDstation in mixed environment SONY-Recv + UDBox ~ End of May –Fix the new bandwidth allocation for 13Mbps with Two-UDL fallback plan –Finalize the instruction for 13Mbps migration Beginning of June ~ –Ready for 13Mbps Migration in RF –Concern on SOI-Asia classes

SONY FEED->UDStation –UDStation still has problems in supporting JSAT format (bug status) –Schedule TBD –Migration deadline is July/August Consider SOI Asia events –Need another UDStation (for backup and for standard encapsulation migration) SONY RECV->UDBox –Bug status –UDBox stocks in SFC ? Only 3-4 (Kotaro will check) –Budget? Ask Jun/Keiko? –Before migration from SONY to UDBox finishes, no migration to standard format

Two-hop BDL?? –Unibraw in practice doesn t use Unibraw-ITB –TU status? –ITB-Unsyiah (need update from ITB) Bandwidth allocation for ITB-Unsyiah class If we move Unibraw-ITB to Unibraw-SFC –How s the operation? Each time we have class, SFC will need to turn off tx to make room for ITB to tx to Unsyiah

What have been and have not been done since the previous meeting Unsyiah is up –When, how (topology, bandwidth, earth station config) –What s the current status? Ask Unsyiah via 13Mbps –Tomorrow RF test(?) –Migration? Just after AI3 meeting.(Early May) Two-UDL –Failed –Cisco bridge doesn t forward traffic –Partner tx 1M, SFC tx 128k (minimum just for routing protocol exchange) –Design the routing so that traffic goes from SFC to partner via UDL, and from partner to SFC via BDL 13Mbps + changing BDL freq as one time application to JSAT –Ask Haruhito to apply to JSAT

Bandwidth Plan Current Status 13Mbps & 2UDL-Fallback Plan

Satellite Link Utilization Status

BDL Traffic on SFC-ASTI Daily Graph Weekly Graph Monthly Graph Yearly Graph

BDL Traffic on SFC -USM Daily Graph Weekly GraphMonthly Graph Yearly Graph

BDL Traffic on SFC-TP Daily Graph Weekly GraphMonthly Graph Yearly Graph

BDL Traffic on SFC-IOIT Daily Graph Weekly GraphMonthly Graph Yearly Graph

BDL Traffic on SFC-ITB Daily Graph Weekly Graph Monthly Graph Yearly Graph

BDL Traffic on SFC-AIT Daily Graph Weekly Graph Monthly Graph Yearly Graph

BDL Traffic on SFC-NAIST Daily Graph Weekly GraphMonthly Graph Yearly Graph

BDL Traffic on SFC-UNSYIAH Daily Graph Weekly Graph Monthly Graph Yearly Graph

UDL Traffic on SFC-FEED Daily Graph Weekly Graph Monthly Graph Yearly Graph