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Category Archives for "Network Collective"

Episode 27 – State Of The Podcast

In this episode we’re changing things up a bit. Eyvonne, Russ, and Jordan come together to chat a bit about the past year and share some exciting news about where we are heading as a podcast. Thank you for making Network Collective possible and we’re looking forward to producing even more great content over the coming year.


Jordan Martin
Host
Eyvonne Sharp
Host
Russ White
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Episode 27 – State Of The Podcast appeared first on Network Collective.

History Of Networking – Geoff Houston – BGP Security

Recent history tells us that even after decades of pervasive use, BGP is far from a fully secure protocol. In this episode of History of Networking on Network Collective, Geoff Houston joins us to talk about how we got here and why previous attempts at BGP security have fallen by the wayside.

 

Geoff Houston
Guest
Russ White
Host
Donald Sharp
Host
Jordan Martin
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post History Of Networking – Geoff Houston – BGP Security appeared first on Network Collective.

History Of Networking – Tony Przygienda – History of BIER

In this History of Networking episode Tony Przygienda joins us to discuss his involvement in the origins of BIER (Bit Index Explicit Replication). BIER is a new take on an old problem, the efficient forwarding of point-to-multipoint (multicast) traffic.

 

Tony Przygienda
Guest
Russ White
Host
Donald Sharp
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post History Of Networking – Tony Przygienda – History of BIER appeared first on Network Collective.

Episode 26 – Networking War Stories Part Deux

To celebrate the first anniversary of Network Collective, we invite a stellar panel of guests to share their networking war stories.  We discuss challenging outages, difficult problems, and what we’ve learned along the way.


Terry Slattery
Guest
Ethan Banks
Guest

Jordan Martin
Host
Eyvonne Sharp
Host
Russ White
Host


Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Episode 26 – Networking War Stories Part Deux appeared first on Network Collective.

History Of Networking – Dino Farinacci – History of LISP

 In this History of Networking episode of Network Collective we chat with Dino Farinacci about his contributions to the Locator/ID Separation Protocol, or LISP.

Dino Farinacci
Guest
Russ White
Host
Jordan Martin
Host
Donald Sharp
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post History Of Networking – Dino Farinacci – History of LISP appeared first on Network Collective.

Episode 25 – MPLS Part 1

In a new protocol deep-dive series, Nick Russo and Russ White return to discuss MPLS. In part one, we discuss the primary use cases for MPLS, label allocation, and what SD-WAN means for the future of MPLS.


Show Notes:

  1. MPLS solves 3 fundamental problems, individually or in concert
    1. Multi-tenancy/VPNs
    2. Traffic engineering
    3. Fast reroute
  2. 4 bytes in a shim header, technically not a label, but we call it that
    1. 20 bits for label value, 2^20 ~= 1 million values (this is important)
    2. 3 bits for EXP, QoS really
    3. 1 S-bit to signal bottom of stack
    4. 8 bits TTL
  3. Label depth is theoretically infinite, but some HW platforms have a tolerance
  4. Many ways to allocate labels
    1. LDP transport
    2. LDP pseudowire
    3. BGP labeled unicast
    4. BGP based IP VPNs (VPNv4/v6)
    5. BGP pseudowire
    6. SR (really built into OSPF and ISIS for distribution)
    7. RSVP-TE
  5. Some forward rules are worth mentioning (basic LDP/BGP-LU environment)
    1. If route learned via IGP/static, LDP label must be used
    2. If route learned via BGP, BGP label must be used
    3. No exceptions
  6. Penultimate Hop Popping: second to last hop removes topmost label when signaled with imp-null from last hop along a given LSP, saves a lookup
  7. Is MPLS is a tunnel or not:
    1. Continue reading

Short Take – Cisco Disaggregation Announcement

In this Network Collective short take, Jordan Martin shares his thoughts on the recent announcement from Cisco that they will be offering disaggregated solutions. Has Cisco seen the light? Will Cisco abandon hardware completely? Or are the doing all of this for other reasons?

Related Episodes:

Jordan Martin
Host

The post Short Take – Cisco Disaggregation Announcement appeared first on Network Collective.

History Of Networking – Dinesh Dutt – Divergence of Compute and Networking

The operation and management of compute and networking are unique in the the tools and skill-sets required, but do they necessarily need to be? Dinesh Dutt joins Network Collective to talk about the divergence of compute and networking, how it hasn’t always been this way, and why he believes it should return to being a unified effort.


Dinesh Dutt
Guest
Russ White
Host
Jordan Martin
Host
Donald Sharp
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post History Of Networking – Dinesh Dutt – Divergence of Compute and Networking appeared first on Network Collective.

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