bgp-orr with local-preference set
- Jean-luc KRIKER
Owned by Jean-luc KRIKER
| vRR1 | R2 | R3 | R4 |
|---|---|---|---|
Befor 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(1048574)}
Page 0 idx 0, (group bgp-orr type Internal) Type 1 val 0xb20c2b4 (adv_entry)
Advertised metrics:
Nexthop: 14.14.14.14
Localpref: 100 <<<<<<<<<<<<< Default LP
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: 0
*BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc6327d0
Next-hop reference count: 7
Source: 13.13.13.13
Next hop type: Router, Next hop index: 581
Next hop: 20.11.13.13 via em1.20, selected
Session Id: 0x141
Protocol next hop: 13.13.13.13
Indirect next hop: 0xb23e200 1048574 INH Session ID: 0x142
State: <Active Int Ext>
Local AS: 65432 Peer AS: 65432
Age: 29:53 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: 0xb23e200 1048574 INH Session ID: 0x142
Indirect path forwarding next hops: 1
Next hop type: Router
Next hop: 20.11.13.13 via em1.20
Session Id: 0x141
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: 141
BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc632ad0
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: 0xb23e380 - INH Session ID: 0x0
State: <NotBest Int Ext>
Inactive reason: Not Best in its group - IGP metric
Local AS: 65432 Peer AS: 65432
Age: 29:06 Metric2: 2000
Validation State: unverified
ORR Generation-ID: 1
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: 0xb23e380 - 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>
| Before root@vRR3# run show route table inet.0 advertising-protocol bgp 11.11.11.11 51.148.72.88/31 detail
inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
* 51.148.72.88/31 (1 entry, 1 announced)
BGP group iBGP type Internal
Nexthop: Self
Localpref: 100 <<<<<<<<<<<<<<<<<<<<<<<<<<<<< Default
AS path: [65432] I
| ||
change of policy set local-preference 200 | |||
After [edit policy-options policy-statement from_static_2_iBGP term term2 then]
root@vRR3# run show route table inet.0 advertising-protocol bgp 11.11.11.11 51.148.72.88/31 detail
inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
* 51.148.72.88/31 (1 entry, 1 announced)
BGP group iBGP type Internal
Nexthop: Self
Localpref: 200 <<<<<<<<<<<<<<<<<<<<<<< modify to LP= 200
AS path: [65432] I
| |||
adv to R2 root@vRR1> show route table inet.0 advertising-protocol bgp 12.12.12.12 51.148.72.88/31 detail
inet.0: 14 destinations, 24 routes (14 active, 0 holddown, 0 hidden)
* 51.148.72.88/31 (2 entries, 1 announced)
BGP group bgp-orr type Internal
Nexthop: 13.13.13.13
Localpref: 200 <<<<<<<<<<<<<< LP=200
AS path: [65432] I
Cluster ID: 11.11.11.11
Originator ID: 13.13.13.13
After 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, 1 announced)
TSI:
KRT in-kernel 51.148.72.88/31 -> {indirect(1048574)}
Page 0 idx 0, (group bgp-orr type Internal) Type 1 val 0xb20c2b4 (adv_entry)
Advertised metrics:
Nexthop: 13.13.13.13
Localpref: 200 <<<<<<<<< LP=200
AS path: [65432] I
Communities:
Cluster ID: 11.11.11.11
Originator ID: 13.13.13.13
Path 51.148.72.88 from 13.13.13.13 Vector len 4. Val: 0
*BGP Preference: 170/-201
Next hop type: Indirect, Next hop index: 0
Address: 0xc6327d0
Next-hop reference count: 7
Source: 13.13.13.13
Next hop type: Router, Next hop index: 581
Next hop: 20.11.13.13 via em1.20, selected
Session Id: 0x141
Protocol next hop: 13.13.13.13
Indirect next hop: 0xb23e200 1048574 INH Session ID: 0x142
State: <Active Int Ext>
Local AS: 65432 Peer AS: 65432
Age: 10:46 Metric2: 1000
Validation State: unverified
ORR Generation-ID: 1
Task: BGP_65432.13.13.13.13+179
Announcement bits (3): 0-KRT 3-BGP_RT_Background 4-Resolve tree 4
AS path: I
Accepted
Localpref: 200
Router ID: 13.13.13.13
Indirect next hops: 1
Protocol next hop: 13.13.13.13 Metric: 1000
Indirect next hop: 0xb23e200 1048574 INH Session ID: 0x142
Indirect path forwarding next hops: 1
Next hop type: Router
Next hop: 20.11.13.13 via em1.20
Session Id: 0x141
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: 141
BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc632ad0
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: 0xb23e380 - INH Session ID: 0x0
State: <Int Ext>
Inactive reason: Local Preference
Local AS: 65432 Peer AS: 65432
Age: 46:49 Metric2: 2000
Validation State: unverified
ORR Generation-ID: 1
Task: BGP_65432.14.14.14.14+179
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: 0xb23e380 - 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>
| After change root@vRR2> show route 51.148.72.88
inet.0: 14 destinations, 14 routes (14 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
51.148.72.88/31 *[BGP/170] 00:28:00, localpref 200, from 11.11.11.11
AS path: I, validation-state: unverified
> to 10.11.12.11 via em1.10
to 40.12.14.14 via em1.40
change root@vRR2> show route protocol bgp detail
inet.0: 14 destinations, 14 routes (14 active, 0 holddown, 0 hidden)
51.148.72.88/31 (1 entry, 1 announced)
*BGP Preference: 170/-101
Next hop type: Indirect, Next hop index: 0
Address: 0xc6324d0
Next-hop reference count: 2
Source: 11.11.11.11
Next hop type: Router, Next hop index: 581
Next hop: 40.12.14.14 via em1.40, selected
Session Id: 0x142
Protocol next hop: 14.14.14.14
Indirect next hop: 0xb23e380 1048575 INH Session ID: 0x143
State: <Active Int Ext>
Local AS: 65432 Peer AS: 65432
Age: 31:21 Metric2: 1000
Validation State: unverified
ORR Generation-ID: 0
Task: BGP_65432.11.11.11.11+179
Announcement bits (2): 0-KRT 4-Resolve tree 4
AS path: I (Originator)
Cluster list: 11.11.11.11
Originator ID: 14.14.14.14
Accepted
Localpref: 100
Router ID: 11.11.11.11
iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
root@vRR2> show route protocol bgp detail
inet.0: 14 destinations, 14 routes (14 active, 0 holddown, 0 hidden)
51.148.72.88/31 (1 entry, 1 announced)
*BGP Preference: 170/-201
Next hop type: Indirect, Next hop index: 0
Address: 0xc632470
Next-hop reference count: 2
Source: 11.11.11.11
Next hop type: Router, Next hop index: 0
Next hop: 10.11.12.11 via em1.10, selected
Session Id: 0x0
Next hop: 40.12.14.14 via em1.40
Session Id: 0x0
Protocol next hop: 13.13.13.13
Indirect next hop: 0xb23e200 1048576 INH Session ID: 0x144
State: <Active Int Ext>
Local AS: 65432 Peer AS: 65432
Age: 11 Metric2: 2000
Validation State: unverified
ORR Generation-ID: 0
Task: BGP_65432.11.11.11.11+179
Announcement bits (2): 0-KRT 4-Resolve tree 4
AS path: I (Originator)
Cluster list: 11.11.11.11
Originator ID: 13.13.13.13
Accepted
Localpref: 200
Router ID: 11.11.11.11
iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
root@vRR2>
| ||