Traffic Engineering

Traffic Engineering for BGP Downstreams

aurologic offers ingress and egress applied BGP Communities. Egress BGP Communities are available to the customer, while Ingress ones are set by aurologic up on route import.

This document is currently WIP and some communities might be not available yet. Use with caution.

Control Communities

  • 30823:30820 -> Customers can set that community to trigger RTBH for /32 IPv4 and /128 IPv6
  • 30823:30821 -> External Route, any route received on peering/upstream is tagged with
  • 30823:30822 -> Pre-Customer Route, this route is accepted only for automation purpose and only when the prefix is not accepted yet - not installed in FIB
  • 30823:30823 -> Customer Route, any route tagged with that community is advertised to peering and upstream
  • 30823:21xxx:xxxx -> Router Identifier the route was received on

Ingress Communities

These are applied on routes received by aurologic routers.

Peering

Peering Communities are like the following:

30823:153IXP:0-3, where 30823 is the aurologic AS-SET, 153 the ASCII number of IP (ingress peering combined), IXP is the numeric identifier of the IXP, e.g. 358 for GNM-IX on PeeringDB. 0-3 is either do not announce (0) or 1-3 amount of times the aurologic ASN 30823 is prepended in the AS-PATH.

Private Peering

  • 30823:154000:999 -> ANY Private Peering
  • 30823:1541766:999 -> AS24940, Hetzner Online -> Region: FFM3.DE
  • 30823:154433:999 -> AS15169, Google -> Region: FFM3.DE
  • 30823:1541007:999 -> AS24961, WIIT Group -> Region: FFM3.DE
  • 30823:1544961:999 -> AS50629, LWLcom -> Region: FFM3.DE

Egress Communities

These are applied on routes transceived by aurologic routers, e.g. to disable upstream/peering partners or influence ingress routing.

Upstream

Upstream Communities are like the following:

30823:85ASN:0-3, where 30823 is the aurologic AS-SET, 85 the ASCII number of U in Upstream, ASN is the numeric ASN of the Carrier, e.g. 5405 for inter.link. 0-3 is either do not announce (0) or 1-3 amount of times the aurologic ASN 30823 is prepended in the AS-PATH.

Upstream Communities are passed, which means if you use the Arelion Community for Local-Preference Changes, it's distributed to our upstreams.

  • 30823:85000:XXX -> ANY Upstream
  • 30823:851299:XXX -> AS1299, Arelion, Region FFM3.DE
  • 30823:853257:XXX -> AS3257, GTT Communications, Region FFM3.DE
  • 30823:855405:XXX -> AS5405, inter.link -> Region: FFM5.DE
  • 30823:856204:XXX -> AS6204, Zet.net -> Region: FFM5.DE
  • 30823:856667:XXX -> AS6667, Elisa Oy -> Region: HEL1.FI
  • 30823:85199524:XXX -> AS199524, G-Core Labs -> Region: FFM3.DE
  • 30823:8544592:XXX -> AS44592, Skylink Datacenter -> Region: EGH.NL
Peering

Peering Communities are like the following:

30823:80IXP:0-3, where 30823 is the aurologic AS-SET, 80 the ASCII number of P in Peering, IXP is the numeric identifier of the IXP, e.g. 358 for GNM-IX on PeeringDB. 0-3 is either do not announce (0) or 1-3 amount of times the aurologic ASN 30823 is prepended in the AS-PATH.

Private Peering

  • 30823:69000:XXX -> ANY Private Peering
  • 30823:691766:XXX -> AS24940, Hetzner Online -> Region: FFM3.DE
  • 30823:69433:XXX -> AS15169, Google -> Region: FFM3.DE
  • 30823:691007:XXX -> AS24961, WIIT Group -> Region: FFM3.DE
  • 30823:694961:XXX -> AS50629, LWLcom -> Region: FFM3.DE
Action
Applied by aurologic
  • 30823:30820 -> RTBH -> ANY Region, max. IPv4 /32, IPv6 /128
  • 30823:30823 -> Customer -> ANY Region, Community is added for any customer Announcement
  • 30823:30824 -> Discovered but yet filtered customer announcement
Site (Region) specific
Finland
  • 30823:90
Germany

####### Frankfurt

  • 30823:9049:69001 -> Tornado Datacenter FRA1
  • 30823:9049:69002 -> Interwerk Rechenzentrum
  • 30823:9049:69003 -> Digital Realty FRA16
  • 30823:9049:69005 -> Equinix FR7
Netherlands

####### Amsterdam

  • 30823:9031:20001 -> Nikhef

####### Eygelshoven

  • 30823:9031:45001 -> Skylink Datacenter
Network Services
Network Services by aurologic
Interface Metrics
Interface Metrics for Network Services