Configure default-originate to Advertise Default Route on BGP Peer

To enable external connectivity, configure the default-originate attribute when you create or update BGP peer (IPv4 and IPv6).

By default, default-originate is disabled.

About this task

Follow this procedure to configure default originate.

Procedure

  1. Run the following command to create a BGP Peer on a tenant VRF: 
    efa tenant service bgp peer create --name <bgp-peer-name> --tenant <tenant-name> 

     --ipv4-uc-nbr <device-ip,vrf-name:neighbor-ip,remote-asn> 
     --ipv4-uc-nbr-bfd <switch-ip,vrf-name:ipv4-neighbor,bfd-enable(t/f),bfd-interval,bfd-rx,bfdmult> 

     --ipv4-uc-nbr-default-originate <device-ip,vrf-name:neighbor-ip,true/false>
     --ipv4-uc-nbr-default-originate-route-map <device-ip,vrf-name:neighbor-ip,route-map>
  2. Run the following command to update a BGP Peer on a tenant VRF: 
    efa tenant service bgp peer update --name <bgp-peer-name> --tenant <tenant-name> 

    --operation peer-add

    --ipv4-uc-nbr <device-ip,vrf-name:neighbor-ip,remote-asn> 
    --ipv4-uc-nbr-bfd <switch-ip,vrf-name:ipv4-neighbor,bfd-enable(t/f),bfd-interval,bfd-rx,bfdmult> 

    --ipv4-uc-nbr-default-originate <device-ip,vrf-name:neighbor-ip,true/false>
    --ipv4-uc-nbr-default-originate-route-map <device-ip,vrf-name:neighbor-ip,route-map>
    Note

    Note

    The ipv4-uc-nbr-default-originate-route-map attribute is an optional attribute.
    Example:
    efa tenant service bgp peer create --name ten1bgppeer1 --tenant tenant11 
     --ipv4-uc-nbr 10.20.246.3,v1:10.20.30.40,50000 
     --ipv4-uc-nbr-bfd 10.20.246.3,v1:10.20.30.40,true 
     --ipv4-uc-nbr-default-originate 10.20.246.3,v1:10.20.30.40,true 
     --ipv4-uc-nbr 10.20.246.4,v1:10.20.30.40,50000 
     --ipv4-uc-nbr-bfd 10.20.246.4,v1:10.20.30.40,true 
     --ipv4-uc-nbr-default-originate 10.20.246.4,v1:10.20.30.40,true 
     --ipv4-uc-nbr-default-originate-route-map 10.20.246.4,v1:10.20.30.40,rmap1
    §efa tenant service bgp peer-group show --detail 
    Name     : ten1bgppeer1
Tenant         : tenant11
State            : bgp-peer-created
Description      : 

Static Peer
-----------
Device IP                   : 10.20.246.4
VRF                         : v1
AFI                         : ipv4
SAFI                        : unicast
Remote IP                   : 10.20.30.40
Remote ASN                  : 50000
Next Hop Self               : false
Update Source IP            : 
BFD Enabled                 : true
BFD Interval                : 0
BFD Rx                      : 0
BFD Multiplier              : 0
MD5 Password                : 
Remove Private AS           : false
Default Originate           : true
Default Originate Route Map : rmap1
Prefix List In              : 
Prefix List Out             : 
Route Map In                : 
Route Map Out               : 
Dev State                   : provisioned
App State                   : cfg-in-sync

    Device IP          : 10.20.246.4
VRF                         : v1
AFI                         : ipv4
SAFI                        : unicast
Remote IP                   : 10.20.30.50
Remote ASN                  : 50000
Next Hop Self               : false
Update Source IP            : 
BFD Enabled                 : true
BFD Interval                : 0
BFD Rx                      : 0
BFD Multiplier              : 0
MD5 Password                : 
Remove Private AS           : false
Default Originate           : false
Default Originate Route Map : 
Prefix List In              : 
Prefix List Out             : 
Route Map In                : 
Route Map Out               : 
Dev State                   : provisioned
App State                   : cfg-in-sync

Device IP                   : 10.20.246.3
VRF                         : v1
AFI                         : ipv4
SAFI                        : unicast
Remote IP                   : 10.20.30.40
Remote ASN                  : 50000
Next Hop Self               : false
Update Source IP            : 
BFD Enabled                 : true
BFD Interval                : 0
BFD Rx                      : 0

    BFD Multiplier     : 0
MD5 Password                : 
Remove Private AS           : false
Default Originate           : true
Default Originate Route Map : 
Prefix List In              : 
Prefix List Out             : 
Route Map In                : 
Route Map Out               : 
Dev State                   : provisioned
App State                   : cfg-in-sync

Device IP                   : 10.20.246.3
VRF                         : v1
AFI                         : ipv4
SAFI                        : unicast
Remote IP                   : 10.20.30.50
Remote ASN                  : 50000
Next Hop Self               : false
Update Source IP            : 
BFD Enabled                 : true
BFD Interval                : 0
BFD Rx                      : 0
BFD Multiplier              : 0
MD5 Password                : 
Remove Private AS           : false
Default Originate           : true
Default Originate Route Map : tt
Prefix List In              : 
Prefix List Out             : 
Route Map In                : 
Route Map Out               : 
Dev State                   : provisioned
App State                   : cfg-in-sync

    
efa tenant service bgp peer show --detail
==============================================
Name             : bgp173-2501
Tenant           : tenant11
State            : bgp-peer-created
Description      :
Static Peer
-----------
       Device IP                   : 10.20.246.3
	VRF                         : v1
	AFI                         : ipv4
	SAFI                        : unicast
	Remote IP                   : 10.20.30.40
	Remote ASN                  : 50000
	Next Hop Self               : false
	Update Source IP            : 
	BFD Enabled                 : true
	BFD Interval                : 0
	BFD Rx                      : 0
	BFD Multiplier              : 0
	MD5 Password                : 
	Remove Private AS           : false
	Default Originate           : true
	Default Originate Route Map : 
	Prefix List In              : 
	Prefix List Out             : 
	Route Map In                : 
	Route Map Out               : 
	Dev State                   : provisioned
	App State                   : cfg-in-sync
	
      Device IP                   : 10.20.246.4
	VRF                         : v1
	AFI                         : ipv4
	SAFI                        : unicast
	Remote IP                   : 10.20.30.40
	Remote ASN                  : 50000
	Next Hop Self               : false
	Update Source IP            : 
	BFD Enabled                 : true
	BFD Interval                : 0
	BFD Rx                      : 0
	BFD Multiplier              : 0
	MD5 Password                : 
	Remove Private AS           : false
	Default Originate           : true
	Default Originate Route Map : rmap1
	Prefix List In              : 
	Prefix List Out             : 
	Route Map In                : 
	Route Map Out               : 
	Dev State                   : provisioned
	App State                   : cfg-in-sync   
============================================
  3. Verify the switch configuration on the SLX device.
    10.20.246.3
    SLX# show running-config router bgp
address-family ipv4 unicast vrf v1
  redistribute connected
  neighbor 10.20.30.40 remote-as 50000
  neighbor 10.20.30.40 default-originate
  neighbor 10.20.30.40 bfd
  neighbor 10.40.40.252 remote-as 4200000000
  neighbor 10.40.40.252 next-hop-self
  maximum-paths 8
 !
    		 10.20.246.4
    SLX# show running-config router bgp
address-family ipv4 unicast vrf v1
  redistribute connected
  neighbor 10.20.30.40 remote-as 50000
  neighbor 10.20.30.40 default-originate route-map rmap1
  neighbor 10.20.30.40 bfd
  neighbor 10.40.40.253 remote-as 4200000000
  neighbor 10.40.40.253 next-hop-self
  maximum-paths 8
 !
    Note

    Note

    For information about commands and supported parameters to configure default-originate attribute, see ExtremeCloud Orchestrator Command Reference, 3.3.1 .
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