Connectivity between CC-INP3 and IHEP
2 presentations were made, one from Fabio and other from Jérôme. They described the status and the progresses made on the understanding and resolution of the connectivity issues between IHEP and CC-IN2P3. since March 2012.

3 issues: 
	- file transfer rates from and to CC IN2P3 are low and the transfers in the direction CC to IHEP are very low.
	- file transfer asymmetry is observed: low throughput observed from Disk-to-Disk and Memory-to-Memory for CC-to-IHEP direction. 
	- PerfSonar rates are observed to be very low and asymmetric: throughput from CC to IHEP is more than 1 order of magnitude lower than the throughput from IHEP to 	CC. Moreover. PerfSonar tests are set with LAL PerfSonar. And although LAL and CC share almost the same connections to IHEP, the rates from LAL to IHEP are 8 times better than those between CC to IHEP.

Actions performed:

	- 22/05/2012: Change of the bonding algorithm on all machines transferring data (going from round robin to IEEE 802.3ad dynamic link aggregation algorithm). This change has shown some improvement on  the memory-to-memory tests (from 16 to 220 Mbps) but no improvement observed on the PerfSonar tests. New bonding algorithm has show improvements … but very small for IHEP.

	- 02/07/2012: PerfSonar machine was configured to use TenGigaEthernet card. This was reconfigured to use the GigaEthernet ethernet connexion. After reconfig, the tests seem to be at the same level for CC as for the others. 

	- xx/07/2012: Monitoring has shown large variations of the throughput depending on the load of the link. The link is particularly overloaded by the traffic to french Tiers 2, not LHCONE. To regulate better the load, a new 10Gb link will be setup from RENATER to GEANT at Geneva. RENATER will have 2 possible roads, one in PARIS from the North of France, and one in Geneva for the South.  
  
Actions 
	-Confirm the improvement of the PerfSonar reconfiguration to 1 Gbps ethernet connexion on a period of few weeks (JB,LCV)
	-Follow up the setting up of the new 10Gb link in Geneva between RENATER and GEANT (JB,LCV).
	-Get statistics from the network between at the level of the connexion between RENATER and the transcontinental link (latency, lost data, etc.).  (JB, LCV).
	-Get similar informations and statistics from the other side of the network, between IHEP and the transcontinental link (IHEP)

VO France- Asia

Actions 
	- Setup of regular submission tests (YC)