AMS-IX B.V.

AS1200 peering

IPv4 peering

This document describes the necessary steps to set up a peering with the AMS-IX ASN (AS1200). Also shown is a sample Cisco router config that can be used to set up this peering with the AS1200 routers.

In case of questions, please contact peering@ams-ix.net.

	Please Note the Following:
	AS1200 only peers with parties that are directly connected to the AMS-IX infrastructure. AS1200 does not sign additional contracts for peering sessions (“peering agreements”).

1: Add the peer

In the "router bgp xxx" configuration section of your router that is attached to the AMS-IX shared medium you should add two peers: the AS1200 routers at AMS-IX.

neighbor 195.69.144.1 remote-as 1200
neighbor 195.69.144.1 version 4
neighbor 195.69.144.1 filter-list 31 in
neighbor 195.69.144.1 filter-list 32 out
neighbor 195.69.144.1 next-hop-self

neighbor 195.69.145.1 remote-as 1200
neighbor 195.69.145.1 version 4
neighbor 195.69.145.1 filter-list 31 in
neighbor 195.69.145.1 filter-list 32 out
neighbor 195.69.145.1 next-hop-self

Adjust the numbers of the AS path filter-lists according to your own preferences.

Optional: Configure the peer-group

You only need to do this if you use peer-groups based on peer location. The AMS-IX peering router 195.69.144.1 (rtr-eun-01) is located at EuNetworks, whereas 195.69.145.1 (rtr-glo-02) is at Global Switch.

neighbor 195.69.144.1 peer-group IPV4-PEERS-GLOBALSWITCH
neighbor 195.69.145.1 peer-group IPV4-PEERS-TELECITY2

2: Add the access-lists

Make sure the AS path filter-lists are set up such that you only permit routes with the AMS-IX Autonomous System Number from AS1200 and that you announce any routes you care to share to the AMS-IX router.

ip as-path access-list 31 permit ^(1200_)+$

ip as-path access-list 32 permit ^my-AS$
ip as-path access-list 32 permit my-Customer-1$
ip as-path access-list 32 permit my-Customer-2$
...

In case you adjusted the numbers of the AS path filter-lists in Step 1, you should use the same numbers in this step.

The above is only an example. In general, you want to configure outgoing access list to only announce your (and your customer's) routes. If you plan on sending us a full routing table, please let us know in advance. We will use best routes for transit. Also, please do not announce AS1200 advertisements to non-customers without our explicit request.

3: Send e-mail to <peering@ams-ix.net>

When you configured your end of the peering, please notify the operator of the AMS-IX by sending e-mail to <peering@ams-ix.net> stating you set up the peering with the AS1200 router and you want the AS1200 router to start the peering with you. Please include the following details in your e-mail message:

• Provider name
• IP address of router at AMS-IX
• ASN that the router at AMS-IX resides in

The peering from the AS1200 router will be set up as soon as possible. You will be notified when the peering is up.

4: Update your aut-num: object in the RIPE database

Your peering with AS1200 should be registered in the Internet Routing Registry at the RIPE NCC, just like all your other peerings. You can use the template below. Please adjust the cost in the “import” clause according to your own needs and put the correct AS set(s) in the “export” clause

import:      from AS1200
	       action pref=100;
	       accept AS1200
 export:      to AS1200
	       announce MY-AS-SET

Setting up IPv6 Peerings

If you want to implement IPv6 peerings on the AMS-IX:

• Use the IPv6 numbering scheme to determine your IPv6 address(es) and configure your router interface(s) accordingly.
• Please let the AMS-IX NOC (noc@ams-ix.net) know that you are IPv6 enabled so we can add your address(es) to the members database.
  Please mention the following details to inform us sufficiently:
  
  
  • Name Organisation
  • IPv6 address
  • (optional) Host name (PTR) you would us to map the address to
  • In case you have more than one port, the IPv4 address of the port or its location
• Invite peers. The AMS-IX Members List also lists which members use IPv6.
• If you wish, you can set up an IPv6 peering with AS1200. To do so, send a mail to the AMS-IX NOC with your peering details.