[GTER] Alguém tem lista de BGP Communities atualizada de AS3549, AS3356 e AS2914?

[Alessandro de Mello Ferreira]

Segue Level(3)

*Community*

*Action*

3549:600

Customer prefixes marked with community 3549:600 will only be announced

to ISP peers within the same continental region where Global Crossing
learned the prefix (South America).

3549:601

Customer prefixes marked with community 3549:601 will only be announced

to ISP peers within the same RR cluster where Global Crossing learned the
prefix (Brazil peers).

3549:666

Customer prefixes marked with community 3549:666 will not be announced to

any ISP peer globally. This includes all ISP peer BGP-4 sessions but the
prefix will still be announced to Global Crossing BGP-4 customers.

3549:695

Customer prefixes marked with community 3549:695 will not be announced to

any peer AS within the local country, but the route will be announced to
the in country RR for export internationally.



*Controlling Route Propagation*

*Community*

Action

Region Enabled

*3549:600*

Deny inter-continental export of tagged prefix [iBGP].

EU/SA *(NOT AVAILABLE FOR NA)*

*3549:601*

Deny inter-cluster export of tagged prefix [iBGP].

SA *(NOT AVAILABLE FOR NA)*

*3549:602*

Deny inter-country export of tagged prefix [iBGP].

SA *(NOT AVAILABLE FOR NA)*

*3549:603*

Deny inter-metro export of tagged prefix [iBGP].

TBD

*3549:604*

Deny inter-Hub export of tagged prefix [iBGP].

TBD

*3549:605*

Deny inter-router export of tagged prefix [iBGP].

TBD

*3549:666*

Block routes from advertising to all peers. [eBGP].

*3549:690*

Deny routes from entering former Impsat Chile. Temp fix for National vs
International traffic.

SA

*3549:695*

Deny in country peers but export globally

SA

This example below illustrates the use of these communities.

A customer with ASN 65535 sends LEVEL 3 a route tagged with
communities * "3549:8011 3549:8033 3549:8190"
*

When that route is reannounced across LEVEL 3 peering connections:

   - *Qwest (AS 209)* will see an AS path of: "*3549 3549 65535"*
   - *MCI (AS 701)* will see a path of: *"3549 3549 3549 3549 65535"*
   - *OpenTransit (AS 5511)* will not see the route at all
   - All other peers will see: *"3549 65535"*



*IP-VPN Communities*

*Community*

LP Value

Action

*6745:11*

-

set MED based on IGP metric

*6745:100*

100

set local preference 100

*6745:200*

200

set local preference 200

*6745:600*

600

set local preference 600

*6745:700*

700

set local preference 700

*- *

750

Default value for customer learned BGP routes

*6745:800*

800

set local preference 800

*6745:900*

900

set local preference 900



-- 
*Alessandro de Mello Ferreira*
*alessandro.fmello at gmail.com <alessandro.fmello at gmail.com>*

Enviado do meu iPhone 


Em 29 de novembro de 2016 12:08, Kurt Kraut <listas at kurtkraut.net> escreveu:

> Aloha,
>
>
> Necessito da lista de BGP communities atualizada e contendo as communities
> que clientes podem usar dos seguintes Sistemas Autônomos:
>
> AS3549 - Level 3
> AS3356 - Level 3
> AS2914 - NTT America
>
> Caso tenham em URL pública, poderiam compartilhar aqui na lista GTER para
> efeito de registro? Caso seja um documento (ex.: PDF), poderiam me mandar
> em PVT e em anexo já que a lista não suporta anexo?
>
>
> Antecipadamente agradeço pela atenção,
>
>
> Kurt Kraut
> --
> gter list    https://eng.registro.br/mailman/listinfo/gter