SDN Retreat Notes

gistfile1.txt

Keeps surprising me, to many DevOps is still a novelty.

Not to reinvent the wheel: https://dl.dropboxusercontent.com/u/778575/IMG_0964.jpg


http://www.pmacct.net  # NetFlow collector and BGP agent.
http://sdn-internet-router-sir.readthedocs.org/en/latest/  # UI and API to pmacct

Puppet seems to be the choice for network vendors: Juniper, Arista and, lately, Cisco.
Ansible is a preferred tool for startups though.

http://www.ntop.org/products/netflow/nprobe/  # Outperforms many specialized pizza boxes

https://github.com/6connect/irrpt  # IRR? Anyone uses it? Would JF be interested?

https://github.com/inex/IXP-Manager  # Hey, http://yycix.ca.


https://github.com/spotify/napalm  # Thanks, Spotify and Netflix! Complements Ansible nicely
https://github.com/Exa-Networks/exabgp  # Another python toolkit (Thanks Samir!)

BGP Based SDN:
    - Agents: Quagga, Bird, ExaBGP (or its fork Bagpipe BGP) or ODL (ONOS?)
    - Eventual consistency for free
    - BGP-LS
    - FlowSpec (RFC5575)
    - L3VPN (RFC 4364)
    - EVPN (RFC 7432), , BGP Enc Community (RFC 5512)
    - Remote Triggered Black Hole, there's an official IPv6 blackhole RFC 6666
    - BGP in Datacentre @ Microsoft: draft-lapukhov-bgp-sdn-00

http://tsung.erlang-projects.org  # Effective load testing

Procedures: Simplify -> Standardize -> Automate -> Abstract
    RANCID -> git -> Gerrit -> Ansible (-> API)
    http://xkcd.com/1205/

NETCONF and YANG:
    Atomic, Consistent, Independent, Abstract API over XML. Not stateless!
    Works best on JunOS.
    YANG is a human readable data description language. Also, worst case of design by commitee. http://www.openconfig.net

NFV:
    Use cases: 
        Virtual Appliances (i.e. BGP RR, FW, LB, IDS)
        Enterprise Remote Site
        4over6: IPv6 for access, VM-based psudowire termination vor IPv4 (Accessible via IPv6 anycast) <= Deutsche Telecom (Snabb sw on VMs)
        vCE (per-customer services)
        vPE: CPE <=> P
        E sw <=> vPE
    Heavy reliance on SR-IOV, DPDK, PF_RING, etc.
    MPLS, IP tunnels, EVPN to pull the client's data into cloud. Also, source/segment routing. Also, Juniper Contrail.

https://github.com/Juniper/OpenClos  # Neat ZTP script for Junipers

SDN Use Cases:
    Arista XMPP(!) & ZTP, `show event-monitor sqlite .schema`
    Traffic Engineering (PCEP RFC 5440)
    Programmable Network Taps
    Arista syslog server to let permitted flows through
    https://www.opnfv.org/software/download

SDDC
"All infra is virtualised and delivered as service. Entirely delivered as software"
Amusing how distributed FS is said to be "for hipsters". People have barely moved from iSCSI to NFS.
http://www.potaroo.net
http://socketplane.io
Hyper-V Extensible Switch is plain amazing.