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AS Number 835

BGP communities are a method to group a set of prefixes and apply some attributes, such as local preference, or route filtering, to all the members of that group. This grouping is done through assigning a "community" value to an IP prefix.

For example, a network administrator can create a community with the value 65000:100 and assign it to all the prefixes that belong to a specific customer. The routers in the network can then be configured to give a higher local preference to all prefixes that have that community value, ensuring that traffic for that customer will always be preferred over other customers.

A common use of BGP communities is to control the distribution of routes between different ASNs. For example, a network operator may use communities to ensure that only certain prefixes are exported to specific customers or peers.

This page lists known meanings of BGP communities for AS835

Quick Search:

Full Listing:

  Community Description
  835:150 Downstream
  835:10000 Source: Cogent Transit
  835:10001 Source: HE Transit
  835:10002 Source: Zayo Transit
  835:11000 Source: TORIX
  835:11001 Source: Equinix Toronto
  835:11002 Source: Google
  835:5000 IRR Valid
  835:5001 IRR Missing or Invalid
  835:5010 RPKI Valid
  835:5011 RPKI Missing
  835:5012 RPKI Invalid
  835:20001 Append 1x to Cogent
  835:20002 Append 2x to Cogent
  835:20003 Append 3x to Cogent
  835:20009 Drop to Cogent
  835:20011 Append 1x to HE
  835:20012 Append 2x to HE
  835:20013 Append 3x to HE
  835:20019 Drop to HE
  835:20021 Append 1x to Zayo
  835:20022 Append 2x to Zayo
  835:20023 Append 3x to Zayo
  835:20029 Drop to Zayo
  835:21001 Append 1x to TORIX
  835:21001 Append 2x to TORIX
  835:21001 Append 3x to TORIX
  835:21001 Drop to TORIX
  835:21011 Append 1x to Equinix Toronto
  835:21012 Append 2x to Equinix Toronto
  835:21013 Append 3x to Equinix Toronto
  835:21019 Drop to Equinix Toronto
  835:22001 Append 1x to Google
  835:22002 Append 2x to Google
  835:22003 Append 3x to Google
  835:22009 Drop to Google

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