AS34771 SEEREN South East European Research & Education Networking project

aut-num:        AS34771
as-name:        SEEREN
descr:          South-East European Research & Education Networking project
remarks:         ###############################################################
+#            ROUTING POLICY FOR SEEREN
+#######################################################################
+
+    BGP communites supported by GRNET (main upstream):
+    -----------------------------------------------------------------
+       5408:666     Blackhole this route (for /32 only)
+       5408:3003    Prepend 3 times when announcing to AIX
+       5408:3005    Prepend 5 times when announcing to AIX
+       5408:4001    Don't announce to AIX
+       5408:4005    Don't announce to AIX and GEANT
+
+#######################################################################
+
+
 #======================================================================
 # PEER: GRNET (AS5408)
 # ---------------------------------------------------------------------
 # PEER DESCRIPTION:
 # GRNET is the primary upstream for SEEREN.
 # SEEREN receives FIRT (including GRNET & AIX routes) from GRNET
 # and advertises SEEREN customers to GRNET.
 # ATTENTION: ISTF is both a backup upstream and a SEEREN customer;
 $ FIRT received by ISTF *should not* leak towards GRNET !!!
 #======================================================================
import:         { # GRNET Routes, LocalPreference=120, accept all >/24 routes
                 from as5408
                      action pref=100;
                      accept (AS-GRNET^0-24);
                 # FIRT, LocalPreference=100, accept all >/24 routes
                 from as5408
                      action  pref=120;
                      accept {0.0.0.0/0^0-24};
               }
export:          # Announce SEEREN routes
              to AS5408
                   announce AS-SEEREN AND <^AS-SEEREN*$>;
+
+
 #======================================================================
 # PEER: ISTF (AS6802)
 # ---------------------------------------------------------------------
 # PEER DESCRIPTION:
 # ISTF is the backup upstream for SEEREN and a SEEREN customer as well.
 # FIRT is advertised to ISTF, except from routes with 5408:4005.
 # 5408:4001 community is added to SEEREN routes, so in case of
 # GRNET-SEEREN failure, SEEREN routes will not be advertized to AIX.
 #======================================================================
import:         { # Give equal local preference as to the announcement
                 # coming from GRNET, let BGP choose the closest node
                 from AS6802
                      action pref=120; community.append(5408:4001);
                      accept (AS112);
                 # ISTF Routes, LocalPreference=100, accept all >/24 routes
                 # Attach community 5408:110 so as to direct GRNET to
                 # prefer the ISTF<->GEANT<->GRNET route. Attach community
                 # 5408:4001 to ensure that the route will not leak to AIX.
                 from AS6802
                      action pref=100;
                             community.append(5408:110);
                             community.append(5408:4001);
                      accept (AS6802^0-24 OR AS6802:AS-TO-SEEREN^0-24)
                             AND <^AS6802+AS6802:AS-TO-SEEREN*$>;
                 # FIRT, LocalPreference=90, accept all >/24 routes
                 from AS6802
                      action pref=130;
                      accept {0.0.0.0/0^0-24};
               }
export:         { # Announce FIRT, except from routes with 5408:4005 which
                 # are not supposed to reach GEANT.
                 # Append 5408:4001 to SEEREN routes so that they are not
                 # announced to AIX via SEEREN-ISTF-GEANT-GRNET if
                 # GRNET<->SEEREN link fails.
                 to AS6802
                      announce NOT community.contains(5408:4005);
               } refine {
                 to AS6802
                      action community.append(5408:4001);
                      announce AS-SEEREN;
                 to AS6802
                      announce ANY;
               }
+
+
    #======================================================================
    # PEERS: SEEREN CUSTOMERS
    # ---------------------------------------------------------------------
    # PEER DESCRIPTION:
    # SEEREN receives its customers' routes and announces FIRT to them.
    #======================================================================
import:         { # Accept the routes/AS path that originates from each peer
                 from prng-as34771-seeren-peers
                      action  pref=100;
                      accept  (PeerAS^0-24 OR PeerAS:AS-TO-SEEREN^0-24)
                              AND <^PeerAS+PeerAS:AS-TO-SEEREN*$>;
               }
export:          # Announce FIRT
              to prng-as34771-seeren-peers
                   announce ANY;
+
+
remarks:###############################################################
+
+
org:            ORG-SA307-RIPE
admin-c:        SN1990-RIPE
tech-c:         SN1990-RIPE
mnt-by:         GRNET-NOC
mnt-routes:     GRNET-NOC
changed:        hostmaster@ripe.net 20050331
changed:        A.Polyrakis@noc.ntua.gr 20050404
changed:        A.Polyrakis@noc.ntua.gr 20070314
changed:        A.Polyrakis@noc.ntua.gr 20070329
source:         RIPE

Peer and upstream distribution

Brief information