aut-num: AS36281
as-name: XION-AS-NET
descr: XION LLC.
import: from AS13645 action pref = 100; accept AS13645 AND NOT {0.0.0.0/0}
import: from AS19962 action pref = 100; accept AS19962:AS-CUSTOMERS AND NOT {0.0.0.0/0}
export: to AS-ANY announce AS-XION
admin-c: DLA80-ARIN
tech-c: MPE70-ARIN
remarks: ========================================================
remarks: Abuse reports to abuse@xion.com
remarks: ========================================================
remarks: - RFC1918 and other reserved networks and subnets are
remarks: not permitted.
remarks: - Advertisements with reserved ASes in the path
remarks: (ie 64512 - 65535) are not permitted.
remarks: - Advertisements are subject to route-flap dampening
remarks: according to the parameters documented in RIPE-229.
remarks: - Prefixes longer than /24 are not permitted. This
remarks: excludes prefixes tagged with the bgp community-id
remarks: of 36281:911 (blackhole). Prefixes tagged with the
remarks: blackhole bgp community-id, can be up to and include a
remarks: /32 in length.
remarks: - Advertisements containing the AS of a network with
remarks: which we have a non-customer peering relationship are
remarks: not permitted.
remarks: - Advertisements tagged with our own "internal use only"
remarks: communities will have all of their communities
remarks: stripped from them at ingress, and any communities
remarks: meant to affect localpref, prepending, etc are thus
remarks: ignored. Advertisements tagged with the well-known
remarks: communities of no-advertise, or no-export sub-confed
remarks: will also have all of their communities stripped
remarks: from them at ingress. However, advertisements with
remarks: the well-known community of no-export will be accepted
remarks: and honored.
remarks: - Prefixes not matching the per-peer import policy
remarks: as documented above are not permitted.
remarks: - A hard limit is sometimes placed on the number of
remarks: routes a peer is allowed to announce to us. This number
remarks: is based on their registered routes plus a bit of extra
remarks: overhead.
remarks: The following import actions are common to every
remarks: Host.net non-customer peering session:
remarks: - RFC1918 and other reserved networks and subnets are
remarks: not permitted.
remarks: - Advertisements with reserved ASes in the path
remarks: (ie 64512 - 65535) are not permitted.
remarks: - Advertisements are subject to route-flap dampening
remarks: according to the parameters documented in RIPE-229.
remarks: - Prefixes shorter longer than /27 are not permitted.
remarks: - Advertisements tagged with our own "internal use"
remarks: or "customer use" communities (as outlined below)
remarks: will have all of their communities stripped from them
remarks: at ingress. Advertisements tagged with the well-known
remarks: communities of no-advertise, or no-export-subconfed
remarks: will also have all of their communities stripped
remarks: from them at ingress. However, advertisements with
remarks: the well-known community of no-export will be accepted
remarks: and honored.
remarks: - MEDs are overwritten unless special arrangements
remarks: have been made.
remarks: - Peers who register their routes with meaningful
remarks: policies may have a prefix filter applied based on
remarks: this policy.
remarks: - Localpref is set to 200 or lower.
remarks: - A hard limit is placed on the number of routes a peer
remarks: is allowed to announce to us. This number is based
remarks: on a historical view of the number of routes they have
remarks: been advertising plus a bit of extra overhead.
remarks: The following export actions are common to every
remarks: Host.net peering session:
remarks: - RFC1918 and other reserved networks and subnets are
remarks: not announced.
remarks: - Advertisements with reserved ASes in the path
remarks: (ie 64512 - 65535) are not announced.
remarks: - Prefixes longer than /27 are not announced.
remarks: - Suppression and prepend actions as outlined in the
remarks: community list below are taken for announcements to
remarks: non-customer peers.
remarks: --------------------------------------------------------
notify: noc@xion.com
mnt-by: MAINT-XION
changed: noc@xion.com 20051117
source: HOST
