bgp-orr or BGP Optimal Route Reflection
- Jean-luc KRIKER
Owned by Jean-luc KRIKER
https://github.com/dahai0013/vlabs/tree/master/vRR_config_1
    
Route reflector: bgp conf # this is a new BGP group for the "igp-primary" # "igp-primary" is the reference point set protocols bgp group bgp-orr type internal set protocols bgp group bgp-orr local-address 11.11.11.11 set protocols bgp group bgp-orr cluster 11.11.11.11 set protocols bgp group bgp-orr optimal-route-reflection igp-primary 12.12.12.12 set protocols bgp group bgp-orr neighbor 12.12.12.12 |
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extended route
root@vRR1> show isis bgp-orr group bgp-orr
BGP ORR Peer Group: bgp-orr
Primary: 12.12.12.12, active
IPv4/IPv6 ORR Routes
--------------------
Prefix L Version Metric Type
12.12.12.12/32 2 195 0 int
13.13.13.13/32 2 195 2000 int
14.14.14.14/32 2 195 1000 int
22.22.22.22/32 2 195 2000 int
30.13.14.0/24 2 195 2000 int
40.12.14.0/24 2 195 1000 int
root@vRR1> show route 51.148.72.88/31 extensive
inet.0: 14 destinations, 24 routes (14 active, 0 holddown, 0 hidden)
51.148.72.88/31 (2 entries, 2 announced)
TSI:
KRT in-kernel 51.148.72.88/31 -> {indirect(1048575)}
Page 0 idx 1, (group bgp-orr type Internal) Type 1 val 0xb20c2d0 (adv_entry)
Advertised metrics:
Nexthop: 14.14.14.14
Localpref: 100
AS path: [65432] I
Communities:
Cluster ID: 11.11.11.11
Originator ID: 14.14.14.14
Path 51.148.72.88 from 14.14.14.14 Vector len 4. Val: 1
*BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc632350
Next-hop reference count: 7
Source: 13.13.13.13
Next hop type: Router, Next hop index: 583
Next hop: 20.11.13.13 via em1.20, selected
Session Id: 0x145
Protocol next hop: 13.13.13.13
Indirect next hop: 0xb23e380 1048575 INH Session ID: 0x147
State: <Active Int Ext>
Local AS: 65432 Peer AS: 65432
Age: 1d 0:26:31 Metric2: 1000
Validation State: unverified
ORR Generation-ID: 1
Task: BGP_65432.13.13.13.13+179
Announcement bits (2): 0-KRT 4-Resolve tree 4
AS path: I
Accepted
Localpref: 100
Router ID: 13.13.13.13
Indirect next hops: 1
Protocol next hop: 13.13.13.13 Metric: 1000
Indirect next hop: 0xb23e380 1048575 INH Session ID: 0x147
Indirect path forwarding next hops: 1
Next hop type: Router
Next hop: 20.11.13.13 via em1.20
Session Id: 0x145
13.13.13.13/32 Originating RIB: inet.0
Metric: 1000 Node path count: 1
Forwarding nexthops: 1
Nexthop: 20.11.13.13 via em1.20
Session Id: 145
BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc632530
Next-hop reference count: 5
Source: 14.14.14.14
Next hop type: Router, Next hop index: 0
Next hop: 10.11.12.12 via em1.10, selected
Session Id: 0x0
Next hop: 20.11.13.13 via em1.20
Session Id: 0x0
Protocol next hop: 14.14.14.14
Indirect next hop: 0xb23e980 - INH Session ID: 0x0
State: <NotBest Int Ext>
Inactive reason: Not Best in its group - IGP metric
Local AS: 65432 Peer AS: 65432
Age: 1d 0:23:53 Metric2: 2000
Validation State: unverified
ORR Generation-ID: 2
Task: BGP_65432.14.14.14.14+179
Announcement bits (1): 3-BGP_RT_Background
AS path: I
Accepted
Localpref: 100
Router ID: 14.14.14.14
Indirect next hops: 1
Protocol next hop: 14.14.14.14 Metric: 2000
Indirect next hop: 0xb23e980 - INH Session ID: 0x0
Indirect path forwarding next hops: 2
Next hop type: Router
Next hop: 10.11.12.12 via em1.10
Session Id: 0x0
Next hop: 20.11.13.13 via em1.20
Session Id: 0x0
14.14.14.14/32 Originating RIB: inet.0
Metric: 2000 Node path count: 1
Forwarding nexthops: 2
Nexthop: 10.11.12.12 via em1.10
Session Id: 0
Nexthop: 20.11.13.13 via em1.20
Session Id: 0
root@vRR1>