Mon 2-2 Andersson
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Transcript of Mon 2-2 Andersson
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8/13/2019 Mon 2-2 Andersson
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www.isocore.com/mpls2013
Presentation Title
Loa Andersson
[email protected]/ [email protected]
mailto:[email protected]:[email protected]:[email protected]:[email protected] -
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Once I read a book ...
Well not the entire book ...
just one chapter...
The original affluent society by Marshall D Sahlins
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Once upon a time
An isolated group of humans...
Hunter / gathers
Stoneage lifestyle
Working hours?
Modern
Tribal
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Pretty relaxed!
But really isolated!!??
No mail, no Facebook, no Twitter, no Web, no SLA ...
Wait a minute!! Bronislaw Malinowski!
The story of the Kuari shells!
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Kuari shell!
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Stoneage networking
The original well-connected society...
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Interesting (?)
But what has this...
...to do with MPLS and SDN?
Solving an eternal basic problem
Note: Not reinventingthe wheel!
The problems statment involves
defining new and better tools for our
inter-tribal communicatio
At least I hope that this is what we are doing ...
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From the pespective of an MPLS nerd
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L3VPN
PCEMPLS-TP
GMPLSL2VPN
PWE3
L1VPN
IPO
MPLS and IP
MPLS-TEVN
MPLS-MCP2MP MPLS
SDNCLOUDSR
SPRINGMS-PWs
BFD
OAMi/f
overlay
SFC
DC
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What does the picture say?
The picture is clearly a mish-mash of everything!
Working groups are apples
Solutions are oranges
And does not immidiately compare
Dependencies are there,
but not always apparent.
When we continue to develop the
technology we might find ourselves
in one of four situations
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Monolith
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A monolith is impressive! But it just stand there
No developmemt TTL has become 0
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One size does not fit all!
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The strength of MPLS is that
it is adaptable.
A couple of fortunate design
decisions:
EncapsulatonFixed Label
Unaware of payload
Link local Labels Context adaptable
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One size does not fit all (II)
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Scaling issues
We dont know what theyare and where to find them
Until we know what the
problem iswe should avoid
bright ideas
Lucky Luke shooting Irrevocable decissions
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Irrevocable Decisions
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More than one way down!
They are not equal!
One is irrevocableand will justget you wet!
The other will leave you with
both alternatives open!
Irrevocable Decissions!
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Or we stay in control!
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CompanyLogo Here
What do we need to learn?/ What did we learn?
Design authority is
important
Keep the data plane
intact
Dont play with the
MPLS encapsulation
We need strong OAM
tools BFD
LSP Ping
Coordination
Design decisions for
backwards compatibility
Keep the backdoor open
Control Plane is more
robust Not sure whether that is an
accident or not.
If it is not we credit theauthors of RFC 3031
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What about the future
The future is not what it used to be, whats more it
never was! (Lee Hayes, base singer in the Weavers)!
The future will come with more and increasingly
intresting challenges. We will carefully have to adapt IP and MPLS to these
challenges
SDN, DC, SR, Service Chaning, MPLS Labeled
Applications, etc; just a step on the road
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Future requirements!
Design authority is
important
Keep the data plane
intact
Dont play with the
MPLS encapsulation
We need strong OAM
tools BFD
LSP Ping
Coordination
Design decisions for
backwards compatibility
Keep the backdoor open
Control Plane is more
robust Not sure whether that is an
accident or not.
If it is not we credit the
authors of RFC 3031
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Insert
CompanyLogo Here
Future requirments!
Design authority is
important
Coordination
We have 24 different
things to coordinate
If it breaks, it will stay
broken
New applications
MPLS to the (who knows) LSPs with new
characteristics might need
to be set up
Look out for the new
bright ideas
We have probably already
discussed them !
more than once
Design for scale
Design for flexibility
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Summary
What we have done so far has kept us
on the track; and ...
...in control
We will need to continue to do that! The role on bleading edge testing is important
The role of interoperability testing is important
Meeting place for people knee deep in technologydevelopment outside the marketing events is
important
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Questions?
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