Skip to main content

Static CORE

This section describes the different configuration sections required to set up the static CORE appliance. This includes configuration of the network interfaces, the SCION AS, and the SCION links.

note

Refer to the Getting Started Setup guide for step-by-step instructions on how to interact with the Anapaya appliance.

Information​

The configuration examples below are based on the following information and need to be adapted to your specific setup.

ISP
ISD-AS: 1-ff00:0:1
 ISP...
Customer
ISD-AS: 1-ff00:1:10
 Customer...
Anapaya EDGE
 Anapaya EDGE
SCION ISP
 SCION ISP
SCION Link
 SCION Link
ISP IP Network
 ISP IP Network
Anapaya CORE
 Anapaya CORE
x
 x
SCION Interface ID
 SCION Interface ID
IP Connectivity
 IP Connectivity
1
 1
100
 100
10
 10
20
 20
2
 2
20
 20
5
 5
200
 200
ISP 3
ISD-AS: 3-ff00:3:1
 ISP 3ISD-AS: 3-ff00:3:1
ISP 2
ISD-AS: 1-ff00:2:1
 ISP 2ISD-AS: 1-ff00:2:1
fe80:2::2/64
 fe80:2::2/64
fe80:2::1/64
 fe80:2::1/64
fe80:3::1/64
 fe80:3::1/64
fe80:3::2/64
 fe80:3::2/64
EDGE WAN IP
10.10.0.24/24
 EDGE WAN IP...
CORE 1 IP
10.0.0.2/24
 CORE 1 IP...
CORE 2 IP
10.0.0.3/24
 CORE 2 IP... Text is not SVG - cannot display

The ISP deploys two CORE appliances in a single ISD-AS, which are connected to each other via the ISP internal network. The internal network is also used to connect the CORE appliances to the EDGE appliances of the customers. The ISP also peers with two other SCION ISPs, using dedicated network interconnects.

CORE appliances​

Information defined by the ISP

  • SCION ISD-AS: 1-ff00:0:1
  • CORE 1:
    • Internal IP address: 10.0.0.2/24
    • Internal IP gateway: 10.0.0.1
  • CORE 2:
    • Internal IP address: 10.0.0.3/24
    • Internal IP gateway: 10.0.0.1

Information to be aligned with the other ISPs

  • Underlay network: fe80:2::/64 (ISP 2) and fe80:3::/64 (ISP 3)

Information defined by ISP 2

  • SCION ISD-AS: 1-ff00:2:1
  • SCION interface ID: 20
  • SCION link underlay address: [fe80:2::2]:31020

Information defined by ISP 3

  • SCION ISD-AS: 3-ff00:3:1
  • SCION interface ID: 5
  • SCION link underlay address: [fe80:3::2]:31005

Information defined by the ISP

  • SCION link to ISP 2:
    • SCION interface ID: 10
    • SCION link underlay address: [fe80:2::1]:31010
  • SCION link to ISP 3:
    • SCION interface ID: 20
    • SCION link underlay address: [fe80:3::1]:31020

Information defined by the ISP

  • EDGE WAN interface IP address: 10.10.0.24/24
  • EDGE WAN interface gateway: 10.10.0.1
  • SCION link from CORE 1:
    • SCION interface ID: 100
    • SCION link underlay address: 10.0.0.2:31100
  • SCION link from CORE 2:
    • SCION interface ID: 200
    • SCION link underlay address: 10.0.0.3:31200

Information defined by the customer

  • SCION ISD-AS: 1-ff00:0:10
  • SCION link to CORE 1:
    • SCION interface ID: 1
    • SCION link underlay address: 10.10.0.24:31001
  • SCION link to CORE 2:
    • SCION interface ID: 2
    • SCION link underlay address: 10.10.0.24:31002

The following table summarizes the SCION links between the CORE appliances and the customer EDGE appliances, as well as the SCION links to other SCION ISPs. The SCION interface is a combined representation of the ISD-AS and the interface ID, e.g., 1-ff00:0:1#100 for CORE 1.

ApplianceSCION interfaceUnderlay addressNeighbor SCION interfaceNeighbor underlay address
CORE 11-ff00:0:1#10010.0.0.2:311001-ff00:0:10#110.10.0.24:31001
CORE 21-ff00:0:1#20010.0.0.3:312001-ff00:0:10#210.10.0.24:31002
CORE 11-ff00:0:1#10[fe80:2::1]:310101-ff00:2:1#20[fe80:2::2]:31020
CORE 21-ff00:0:1#20[fe80:3::1]:310203-ff00:3:1#5[fe80:3::2]:31005

Network interfaces​

The network interfaces section describes the configuration of the network interfaces on the CORE appliances. In this example, we assume that both CORE appliances have two network interfaces: one towards the internal network internal and one for the SCION links to other SCION ISPs external. The internal interface is used to connect the CORE appliances to the EDGE appliances of the customers but also to connect the CORE appliances to each other.

internal interface

The internal interface can also be split into two separate interfaces, one for the connection to the EDGE appliances and one for the connection to the other CORE appliance.

Loading...

SCION​

The SCION section describes the configuration of the SCION AS on the CORE appliances. For details, see the SCION configuration documentation covering general AS configuration, data plane, control plane, and SCION neighbors.

Most configuration parameters can be directly derived from the Information section. The following example shows the configuration of the SCION AS on the CORE appliances.

control and router

The control and router sections need to be set to enabled: true for the control and data plane to be enabled. The address of the control plane as well as the internal_interface of the router need to be set to the internal interface address.

neighbor relationship

By default, set the neighbor relationship to CORE for other SCION ISPs and to CHILD for customer EDGE appliances, unless specified otherwise.

Loading...

Cluster​

The cluster section describes the configuration of the cluster on the CORE appliances. In this example, the CORE appliances deployed in a sharded manner are part of the same cluster. The cluster configuration is used to synchronize topology as well as SCION beacon and path information amongst each other.

The cluster configuration includes the local cluster endpoint and the list of peers that are part of the cluster. For CORE appliances we recommend to use automatic topology synchronization, see Cluster for more details.

Loading...

Complete configuration​

For completeness, we provide the full configuration of both CORE appliances:

Loading...