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AS1299 BGP Communities

Last Updated: 2020-01-15

ENABLING CUSTOMERS TO CONTROL THEIR IPV4 AND IPV6 TRAFFIC IN-LINE WITH THEIR BUSINESS NEEDS

Telia Carrier's Internet Services on AS1299, offers a range of BGP Community options to help control the scope and route preference of traffic.

NOTE & DISCLAIMER

- Unless stated otherwise, these features are available for all BGP customers.

- All of these are subject to change; Customers and Peers should check the Portal and the RIPE database entry for AS1299.

These are provided on a Best Endeavour basis and not subject to product-specific SLAs.

Visit the RIPE database to see the entry for AS1299

PREPEND AND DO NOT ANNOUNCE

IP Transit customers can use predefined communities to prepend or deny announcements to specific Telia Carrier peers. Communities are checked at AS1299 exit points, starting with the most specific (i.e. per- peer communities checked before regional communities).

Allowable values for the regional & peer prepend are 0, 1, 2 & 3, denoting the number of prepends to be applied. Telia Carrier’s community support also allows customers to set multiple community actions. For example, simultaneously setting a regional prepend of 1x and a peer- specific prepend of 2x. A prepend of zero is also possible.

PLEASE NOTE: Prepend and Do Not Announce community actions are not available for Content Connect customers.

Full list of Predefined Communities

Peer AS Europe North America Asia

All Peers in Europe

 

1299:200x

   

All Peers in North America

   

1299:500x

 

All Peers in Asia

     

1299:700x

AT&T

AS2686

1299:258x

   

AT&T

AS7018

 

1299:558x

 

AT&T

AS2687

   

1299:758x

CenturyLink

AS3910

1299:261x

   

CenturyLink (Qwest)

AS209

 

1299:561x

1299:761x

CenturyLink (Level3)

AS3356

1299:256x

1299:556x

1299:756x

China Telecom

AS4134

1299:288x

1299:588x

1299:788x

China Unicom

AS4837

1299:287x

1299:587x

1299:787x

Cogent

AS174

1299:273x

1299:573x

 

Comcast

AS7922

 

1299:566x

 

Deutsche Telekom (DTAG)

AS3320

1299:264x

   

France Telecom

AS5511

1299:254x

1299:554x

1299:754x

GTT

AS3257

1299:269x

1299:569x

1299:769x

KPN

AS286

1299:286x

1299:586x

 

Liberty Global (UPC)

AS6830

1299:270x

1299:570x

 

NTT

AS2914

1299:252x

1299:552x

 

PCCW

AS3491 

   

1299:794x 

Sprint

AS1239

1299:250x

1299:550x

 

TATA

AS6453

1299:263x

1299:563x

 

Tele2

AS1257

1299:275x

   

Telecom Italia

AS6762

1299:274x

1299:574x

1299:774x

Telefonica

AS12956

1299:259x

1299:559x

 

Verizon

AS701

 

1299:557x

 

Verizon

AS702

1299:257x

   

Verizon

AS703

   

1299:757x

Vodafone

AS1273 

1299:284x 

 

1299:784x 

XO Communications

AS2828

 

1299:578x

 

Zayo (Abovenet)

AS6461

1299:253x

1299:553x

 

* Where x is the number of prepends (x=0,1,2,3) or do NOT announce (x=9)

Origin Communities

Telia Carrier offers origin BGP communities to all IP Transit customers as a standard service feature. Origin communities indicate if a prefix was learned from a customer or a peer, and the region in which it was learned.

Full list of Origin BGP Communities

Community Description 

1299:20000

EU Peers

1299:25000

North American Peers

1299:27000

Asia Peers

1299:30000

EU Customers

1299:35000

North American Customers

1299:37000

Asia Customers

 

REMOTE BLACKHOLE COMMUNITY

The remote blackhole community allows IP Transit customers to tag announced prefixes with a community (see below) that will trigger Telia Carrier to automatically discard (null-route) traffic destined for the tagged prefix as soon as it enters our network. IPv4 and IPv6 prefixes can be tagged up to a /32 or /128, respectively.

While not enabled by default, this capability can be requested when ordering a new service or via a change order for existing services.

For security purposes, customers must use per-prefix BGP filters and register and maintain their prefixes and route objects in the applicable Internet Routing Registry database.

Full list of Remote Blackhole Community

Community Description 

65535:666

RTBH

1299:999

RTBH

1299:666

RTBH

 

LOCAL PREFERENCE ACTIONS

Customers also have the option to change the default local preference setting within AS1299 from 200 (customers) to either 150 (Peerings) or 50 (Backup). 

Full list of Local Preference Actions

Community Description Local Preference
1299:50 Lowest Possible, Backup  50
1299:150 Equal to Peer, Backup 150
Default Equal to Customer 200

 

BGP GRACEFUL SHUTDOWN

AS1299 Accepts and Honours the BGP Graceful Shutdown community; 65535:0 - compliant with IETF RFC8326. The purpose of this is to reduce the amount of traffic lost when BGP sessions are to be shut down, for example, during planned work. When announced by a customer, AS1299 will set local-preference to 20, which will ensure the use of alternative paths, if they exist. During Planned Works, AS1299 will always signal this community to customers and peers, allowing them to also re-route within their network.

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