Winter 2014 Netgurus Meeting
NANOG will provide to NetGurus, a room to be set in closed Board style conference seating to support 20-30 R&E Operators on Sunday, February 9, 2014 before NANOG 60 begins. We will have a projector and screen available if needed by participants. The actual room assignment will not be known for a few more weeks. When established, we will share the room location/information.
Location |
Atlanta, GA |
Room |
International F |
Meeting Date |
February 9, 2014 |
Meeting Time |
11:00am - 5:30pm |
Conference Dates |
February 10-12, 2013 |
Hotel
The NANOG Room Block at the Westin PeachTree will accommodate the early arrival of NetGurus. They will find hotel reservation information on the web.
Tentative Agenda
Time |
Activity |
---|---|
11:00am |
Gurus start |
12:15pm |
Break for group lunch |
1:30pm |
Guruing continues |
5:30pm |
Adjourn |
6:00pm |
NANOGers and Education Students Reception* |
* NOTE: Reception included for those registered for NANOG 60.
Attendance
Contact Jeffry Handal (jhandal@lsu.edu) to RSVP and for topics you wish to discuss during the meeting. Attendance limit is 25.
Name |
Email |
---|---|
Michael Sinatra |
ms@es.net |
Jeffry Handal |
jhandal@lsu.edu |
Chris Spears |
cspears@internet2.edu |
Rich Cropp |
rac111@psu.edu |
Brian Parker |
bparker@clemson.edu |
Chris Konger |
ckonger@clemson.edu |
Joe Rogers |
joe@usf.edu |
Ted Netterfield |
ted@usf.edu |
Jose Dominguez |
jad@uoregon.edu |
Andrew Lee |
leea@grnoc.iu.edu |
Hans Addleman |
addlema@grnoc.iu.edu |
Brian Jones |
bjones@vt.edu |
Eric Oosting |
eoosting@netuf.net |
Celeste Anderson |
celestea@usc.edu |
Jeff Bartig |
jeffb@doit.wisc.edu |
|
|
Discussion Topics and Notes
- Perfsonar and SRX firewalls
- Recommended placement: inside and outside network; AL2S network.
- Bandwidth test: sets up blocks; shuffles bits on memory to NIC; there is no hard drive; almost line rate. Can overrun buffers on routers/firewall.
- Check out perfclub.org. Group open to all.
- New patches/upgrades coming for perfsonar.
- Recommended boxes for using perfsonar: qbox, nerada, udroids, beagle.
- Uses of perfsonar:
- Before/after snapshots of performance
- Data can be used by researchers
- Jason and Ely working on workshop to help users understand perfsonar. Feel free to provide feedback. Contact Celeste.
- Web10g coming. People need to comment.
- LSU using v6sonar used for a sensor network for testing ipv4/ipv6 performance.
- Lots of Asia pacific members use perfsonar.
- They do not know the community function and they have it closed. Celeste can hook you up.
- They create tools that allow cool stuff. Example: create network map from perfsonar connections.
- Creating a telepresence friendly campus.
- Use an SBC
- Application based firewall for video and voice
- It will help identify packet loss.
- Only telepresence sent through it.
- Recommend using SIP line from provider and a vlan on the internet as backup.
- Check out bluejeans from NET+.
- Examples from campuses:
- Set QoS and do not place behind campus FW.
- Allow 1723 in from anywhere so people can dial in/out.
- Cisco VCS express: inside and outside firewall only applies to tanderg (only video not voice).
- Use an SBC
- IPv6 measurement sharing
- Deepfield project to replace portal.internet2.edu.
- I2 issues with measurement:
- v6 flows are behind - have to mirror traffic, juniper gear having issues (netflow v9 not available with certain hardware).
- Atlas project may have some statistics that you can reference.
- Farmer offers to community colleges the following option:
- v6 free and v4 has a cost. Ipv6 adoption great!
- Keeps costs down because he peer with HE for free.
- Similar model Chinese colleges follow.
- Security:
- Tools not keeping up.
- Traffic is there whether you deploy or not.
- Issues:
- Monitor both: v4 and v6 to find problems.
- Recommend nagios/mrtg/cacti.
- Monitor health of session for bgp.
- Peering issues still exist.
- Multicast: test sources, future of ipv4 multicast
- Negative:
- Pacific wave: multicast not allowed; only p2p; little requests for ipv6 multicast.
- Most campuses do not worry about it.
- Positive:
- Replication of wireless config with ipv4 multicast; next version may work for ipv6. (Cisco controller)
- People using it, NOC getting more complaints on ipv4 multicast more in one month than in the last 1.5 years.
- Netcast for on campus only. They would like digital signage.
- Voip phones have a paging service over multicast.
- Issues:
- iptv with multicast: leaves are an issue; continues streaming and consuming bandwidth.
- Cisco 3750 with ttl 0 problems arise from flooding.
- Private industry out pacing us. Example: multicast LTE; financial center. Education missing content to offer.
- Negative:
- Engaging with researchers
- Begin discussions with researchers. Invite them to technical meetings.
- HPC tends to lead it. Hard part is people leave by the time the grant comes along. Always find a representative. People interested by what they will do is different.
- Recommend nanog/geni/I2 provide research forum. Researchers need feedback. Allow publications.
- Research issues topic of interest: interdomain routing for openflow.
- Long Range Ethernet alternatives
- phybridge: does poe and Ethernet. Cas provided an example: ip phones work just fine.
- 2900 module for 4g celular: instead of using as a backup, use as main connection. Check for data plan; they may be cheaper than renting dark fiber.
- Consider bidirectional transceivers: 10,20, 30 km flavors. 1gig only. (Allied Teleson makes them.)
- Replacement of cacti graphs for a dynamic solution
- Check out statseeker:
- Install on a dell server with 8gig.
- Nexus does like it on the fabic extenders.
- v6 support coming.
- Focuses on statistics only.
- Very fast.
- Consider mrtg instead of cacti.
- Create scripts to scan periodically.
- Clemson uses it mostly core devices.
- Can be used for weather maps.
- Script maker allows flexibility.
- Check out router stud.cgi by steve shipway. Has book.
- Check out snapp used by the I2 noc.
- Dynamic front end. Very slick.
- Free!
- Other:
- php weather map
- drraw used for creating maps from same data.
- whatsup
- Check out statseeker:
- Backbone upgrade plans (e.g. speeds, multi-vendor)
- Examples of campuses:
- Penn state: Moved from 6500 to Brocade mlx-E; 10gig to start with a few 100gig to computer routers; deployed 2 weeks ago and waiting to see what they will learn.
- USF: looking at same decision as Penn but with 100gig only.
- Georgia Tech: VSS at the core; Nexus bug for creating a multicast storm; dual 10gig, planning for 100gig.
Also considering a 6904 with adapter for 10gig interfaces; OSI tend to work when keyed for Cisco. - Clemson: on their CCNIE, went with 40gig interfaces.
- Other campuses: everyone seem to be happen with Nexus 7k but not happy with 100gig support.
- Brocade fears:
- Firmware upgrade
- Documentation not great.
- Forward error correction issue still pending.
- Examples of campuses:
- Data Center Interconnects (e.g. HA, L2 or L3)
- Campus stories:
- Clemson: L2 connectivity but may move all to L3 to avoid broadcast storms.
- USF: L3 between data centers; recommend GLSB to move stuff around.
- Recommendation:
- Hit vendors with not allowing L2 movement of traffic.
- Do not vmotion L2; DCs should be independent.
- General consensus: kill L2 and do not let server guys say otherwise.
- Use load balancers.
- Check outL gtm = global traffic manager.
- Kevin Miller has document showing why L2 is bad. (Sent to list)
- Campus stories:
- Other topics
- Everyone buying 3rd party optics.
- In Data Center: openstack applications dominating.
- CCNIE grant results: Clemson created one flat L2 network and using big switch as controller. Have learned lessons; they were encouraged to share in the near future.
- Outage notification systems:
- Email notifications when network is down is dumb. A better notification system needed.
- Example: blackboard connect. Clients decide decide how to get contacted.
- Servers people use:
- DHCP servers dominated by ISC (failover and load balancers are common deployment scenarios).
- Radius servers: Free radius mostly. Some considering going to radiator. (Radiator written in perl but scales.)
- eduroam:
- Service expanding.
- Campuses like Clemson and LSU using it as the only network to offer. Clients must get used to setting usernames as xxxx@xxx.edu.
- Suggest eduroam for nanog
- Question asked: Does eduroam use tls? Ideal when AD changes passwords.
- Future venue for Netgurus
- Nanog and GENI still welcomes us.
- Another possibility is the Technology Exchange in Indianapolis.
- Quarterly call with one topic in mind.
- Future still uncertain.
Lunch Options
Meehan's Public House (Properly poured pint and bar food) <--- Selected by the group
Rays in the City (Seafood)
Sweet Georgia's Juke Joint (Southern Food)
Thanks for the Support
Many thanks to our sponsors who have made this meeting possible:
Michael Sinatra
Betty Burke
Internet2
Nanog