[grnog] GRNOG7 sign-off

[Tasos Karaliotas]

Hello,

Regarding longer prefix propagation ...an obvious case is this:

As IPv4 space has been exhausted, we in GRNET, tend to assign even
longer prefixes to our members [aka customers] ( /26,/27...up to /29).
When multi-homing is desired by the member then the other SP should
propagate longer prefixes to its upstream in order to service the
member. In our turn we need to de-aggregate the same long, part of our
supernet, prefix and advertise it to our upstreams in order to let the
customer to choose the desired path. 

We've exchanged few mails about that in the list, some time ago.  Of
course there are other variations to this scenario.

If you like, we could organize a more detailed discussion about this
topic during our next GRNOG technical meeting.

Regards

Tasos


On 13/07/2018 09:07 πμ, Nikos Leontsinis wrote:
>
> Παρακολουθησα την ημεριδα απο το ipad.  Χαιρετιζω την προσπαθεια και
> συγχαρητηρια σε ολους  τους συντελεστες.
>
> Ισως οι vendors θα μπορουσαν να συμμετεχουν και να υπστηριζουν εδω.
>
>  
>
> A few comments about the security discussion:
>
> Let’s just say rfc 7454 is a good place to start.
>
>  
>
>  1. /The RIPE community has documented that:  IPv4  prefixes longer
>     than /24 and IPv6 prefixes longer than /48 are/
>
> /   generally neither announced nor accepted in the Internet/ and
> there is a best practice rfc supporting that view too:
>
> https://tools.ietf.org/html/rfc7454 which by the way also mentions the
> ttl security feature mentioned (of course the
>
> approach is applicable for the igp too but this is another discussion.)  
>
>
> Further to that, it would be interesting to explore the opposite
> view  i.e why someone would be willing to start propagating
>
>  /25s and /26s? I don’t see a reason but there might be merits to that
> view.
>
>  
>
>  2. Bogon Ass should be filtered too:
>
>  
>
> 0
>
> 23456
>
> 64496 – 131071
>
> 4200000000 – 4294967295
>
> RFC5398, RFC6996, RFC7300
>
>  
>
>  3. We don’t do full automation and we will never do simply because
>     automation is not compatible with flexibility. The network is more
>     complex than an application.
>  4. The idea to write 250K lines of a prefix-list  is not rational.
>     Simply doesn’t scale.
>  5. There are no customer obligations there are obligations of any
>     internet citizen as stipulated by RIPE.
>  6. The idea to outsource  filtering  to the provider is a pragmatic
>     one  and  can be part of the managed services portfolio  offered
>     for many years. The brave new world promises to lower
>
> barriers to market entry,  empowering the provider with  all these tasks.
>
>  7. How many of you have supported/adopted rfc 7999 wouldn’t that make
>     internet a better place?
>  8. Also another aspect not mentioned but important is to encourage
>     the use of public but non publicly routable address space in the
>     interconnections.
>
>  
>
> Regards,
>
>
> /nikos
>
>
>
>
>
>
> 2018-07-11 0:37 GMT+01:00 Andreas Polyrakis <apolyr at noc.grnet.gr
> <mailto:apolyr at noc.grnet.gr>>:
>
>     Καλησπέρα,
>
>     Στον απόηχο ενός πολύ πετυχημένου GRNOG7*, θα θέλαμε να σας
>     ενημερώσουμε πως στη σελίδα της διοργάνωσης
>     <https://www.grnog.gr/7th-meeting/> έχουν αναρτηθεί οι
>     παρουσιάσεις, το βίντεο, φωτογραφίες και γενικότερα το υλικό της
>     συνάντησης.
>
>     Θυμίζουμε πως η αξιολόγησή
>     <https://goo.gl/forms/0Q9Xcgnk060EG8Lz2> σας είναι σημαντική για
>     την διατήρηση του υψηλού επιπέδου της διοργάνωσης. Το link θα
>     παραμείνει ενεργό για λίγες ημέρες ακόμα.
>
>     Και πάλι σας ευχαριστούμε θερμά για την ενεργή συμμετοχή σας!
>
>     Η επιτροπή του GRNOG,
>     Κώστας Ζορμπαδέλος
>     Μιχάλης Μπερσίμης
>     Μιχάλης Οικονομάκος
>     Ανδρέας Πολυράκης
>
>     * 111 εγγραφές, 11+2 παρουσιάσεις, ένα panel, με 3 ομιλητές να
>     ταξιδεύουν επί τούτου από το εξωτερικό και ένας από άλλη πόλη της
>     Ελλάδας, live streaming & recording -- και όλα αυτά σε ένα υπέρχο
>     χώρο!
>
>
>     -- 
>     -----------------------------------------------------------------------
>     Andreas Polyrakis - apolyr at noc.grnet.gr <mailto:apolyr at noc.grnet.gr>
>     GRNET NOC Technical Manager
>     Greek Research & Technology Network - http://www.grnet.gr
>     7, Kifisias Av., Ampelokipi, 11523 Athens, Greece
>     <https://maps.google.com/?q=7,+Kifisias+Av.,+Ampelokipi,+11523+Athens,+Greece&entry=gmail&source=g>
>     Mobile: +30 6972832445    Office: +30 2107474249   Fax: +30 2107474490
>     -----------------------------------------------------------------------
>
>

-- 
---------------------------------------------------------------
Tasos Karaliotas - karaliot at noc.grnet.gr
Greek Research&  Technology Network - http://www.grnet.gr, 
7, Kifisias  Av., Ampelokipi, 11523 Athens, Greece
Office: +302107471097 Fax: +302107474490
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