blob: c8fbce50a47cf6ee4b657908c7e8f0a8b2a7d809 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
# Route Reflector
This page explains how to set up GoBGP as a route reflector.
## Prerequisites
Assumed you finished [Getting Started](https://github.com/osrg/gobgp/blob/master/docs/sources/getting-started.md).
## Configuration
Configure `RouteReflector.RouteReflectorConfig` section to enable route reflector functionality.
The configuration below configures two route reflector clients and two normal iBGP peers.
```toml
[Global]
[Global.GlobalConfig]
RouterId = "192.168.0.1"
As = 65000
[Neighbors]
[[Neighbors.NeighborList]]
[Neighbors.NeighborList.NeighborConfig]
NeighborAddress = "192.168.10.2"
PeerAs = 65000
[Neighbors.NeighborList.RouteReflector.RouteReflectorConfig]
RouteReflectorClient = true
RouteReflectorClusterId = "192.168.0.1"
[[Neighbors.NeighborList]]
[Neighbors.NeighborList.NeighborConfig]
NeighborAddress = "192.168.10.3"
PeerAs = 65000
[Neighbors.NeighborList.RouteReflector.RouteReflectorConfig]
RouteReflectorClient = true
RouteReflectorClusterId = "192.168.0.1"
[[Neighbors.NeighborList]]
[Neighbors.NeighborList.NeighborConfig]
NeighborAddress = "192.168.10.4"
PeerAs = 65000
[[Neighbors.NeighborList]]
[Neighbors.NeighborList.NeighborConfig]
NeighborAddress = "192.168.10.5"
PeerAs = 65000
```
## Check route reflector behavior
Let's check adj-rib-out of a route reflector client.
```bash
$ gobgp neighbor 192.168.10.2 adj-out
Network Next Hop AS_PATH Attrs
10.0.2.0/24 192.168.10.3 [{Origin: i} {Med: 0} {LocalPref: 100} {Originator: 192.168.0.3} {ClusterList: [192.168.0.1]}]
10.0.3.0/24 192.168.10.4 [{Origin: i} {Med: 0} {LocalPref: 100} {Originator: 192.168.0.4} {ClusterList: [192.168.0.1]}]
10.0.4.0/24 192.168.10.5 [{Origin: i} {Med: 0} {LocalPref: 100} {Originator: 192.168.0.5} {ClusterList: [192.168.0.1]}]
```
You can see the routes from other iBGP peers are reflected.
Also Originator and ClusterList path attributes are added.
For the normal iBGP peer's adj-rib-out
```bash
$ gobgp neighbor 192.168.10.4 adj-out
Network Next Hop AS_PATH Attrs
10.0.1.0/24 192.168.10.2 [{Origin: i} {Med: 0} {LocalPref: 100}]
10.0.2.0/24 192.168.10.3 [{Origin: i} {Med: 0} {LocalPref: 100}]
```
Only the routes from route reflector clients are advertised via GoBGP.
Originator and ClusterList path attributes are not added.
|
