Latest LHCOPN-LHCONE Meeting Notes from Edoardo

A brief update on the status of the LHCOPN was given. The OPN has been 
quite stable recently  and the only changes concerned some link upgrade 
and IPv6 activations. The traffic has increased with the start of Run2 
and few sites are considering upgrading the capacity of their links to CERN.
 
CERN has announced a change of its LHCOPN and LHCONE prefixes. The 
change aims to reduce the number of servers exposed. Exact dates will be 
announced to the mailing lists.
 
 
The discussion about stop using LHCOPN for T1-T1 traffic got more input.
- NL-T1 was against, because LHCOPN is cheaper than LHCONE.
- GEANT supports the current status, i.e. Tier1s are allowed to decide 
bilaterally the transit policies
- UK-T1-RAL stated that the UK sites don't need LHCONE for the time 
being. If T1-T1 traffic has to be moved to LHCONE, then there must be a 
compelling reason to do it. If it was the case, the Experiments should 
be involved in the decision making.
- CERN is happy to keep providing transit to T1-T1 traffic. T1s must be 
aware that most of the backup paths have already been moved to LHCONE, 
though.
In the end has been agreed to not force the removal of T1-T1 traffic 
from LHCOPN. And to let Tier1s decide with their peers where to put that 
  traffic (symmetry should be respected).
 
 
*LHCONE L3VPN*
 
L3VPN update: Mian Usman showed traffic statistics for the main VRF 
providers. He showed also the interesting information which can be 
provided by the flow analyser tool that Geant has adopted.
 
L3VPN operations update: Mike O'Connor presented an analyses on the 
utilization of BGP communities in LHCONE and the new tools to check the 
content of the ESnet routing table.
 
LHCONE AUP audit: the AUP has been approved by ~70% of the sites. 
Edoardo Martelli will contact the missing sites to get the 
acknowledgements. Pierre Auger has not provided the necessary 
information, so it has not been formally added to the AUP.
It followed a discussion about connecting commercial cloud providers to 
LHCONE. The Network providers already peer with cloud providers, which 
routes are not sent to  peering partners. They expressed some concern in 
transiting commercial traffic over R&E networks.
 
perfSONAR update: Shawn McKee presented the progresses made and new 
tools using ElasticSearch and MadDash
 
Report on Asian Tier Centre Forum in Korea: Bill Johnston gave an 
extensive report on the forum held in Korea which saw the participations 
of most of the WLCG Asian sites and important progress in realizing VRFs 
in that region.
 
Transit VRF: more LHCONE VRFs are being implemented and it's not always 
possible to guarantee a full mesh among them, especially for those 
outside Europe and North America. For them it's important to find 
transit VRFs that can assure global reachability.
Currently the default routing policy is Peering, so ad-hoc agreements 
have to be arranged in order to grant VRF transit.
 
*LHCONE P2P*
 
BGP-based solutions with dynamic circuits: Magnus Bergroth presented 
possible solutions using BGP to the L3 routing issue of sites using p2p 
circuits. A solution is based on Route servers interacting with BFD for 
knowing the status of the data plane.
 
Named Data Networking: Christos Papadopoulos presented NDN, a project 
that aims to implement data distribution using data identifiers rather 
than host addresses.
 
Progress of SDN, OVS and dynamic circuits: Ramiro Vocu presented the 
progresses made with integrating NSI circuits with PhEDEx using OVS 
(Open vSwitch) and how they were able to shape the bandwidth on a p2p 
circuit. He also showed the result of data transfers using servers with 
100G NICs.
 
 
BoD service plans in GÉANT: Mian Usman presented how BoD is currently 
implemented in Geant and it will evolve using the DynPaC framework, ONOS 
and SDN
 
Automated GOLE update: Gerben van Malenstein showed the activity of the 
AutoGOLE project, the dashboard they have implemented
 
*Next meeting*
 
The next LHCOPN and LHCONE meeting will be hosted by the ISGC Symposium 
in Taipei on the 13-14 of March 2016:

Submitted by David Foster on Fri, 11/13/2015 - 14:41