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New Member

Cisco Nexus 7000 BGP default route distribution

Hi,

I am trying to configure BGP on a Nexus 7000 to distribute a default route to several VRFs, however I am unable to find a command to do this.  Any ideas would be greatly appreciated.

7 REPLIES
Cisco Employee

Cisco Nexus 7000 BGP default route distribution

Hi,

You can try the following:

http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/unicast/configuration/guide/l3_advbgp.html#wp1154404

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: Cisco Nexus 7000 BGP default route distribution

Thanks for your reply.

The issue is I do not have the option to enter the default-information originate in BGP...this command is not present.  We are running version 6.1(2) and have several VDCs configured...if that makes a difference (I doubt it).  Any ideas as to why this command is not present? perhaps I need to enable another feature?

Thanks

New Member

Re: Cisco Nexus 7000 BGP default route distribution

Also we have several VRFs configured, which are the ones I am trying to have the configured default route advertised for each of those VRFs.

Cisco Employee

Re: Cisco Nexus 7000 BGP default route distribution

Hi,

It looks like the only way to generate the default  route in a VRF in this version of nx-os is to use a networ statement (network  0.0.0.0/0). You will obviously need to have a default route present in  the RIB for the specific VRF.

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: Cisco Nexus 7000 BGP default route distribution

Hi thanks again.

I found the command to distribute the default route:

router bgp 10

neighbor 10.10.10.10

address-family ipv4 unicast

default-originate

However this distributes the global default route and not for the individual VRFs.  I had originally configured static default routes under the VRF process on the edge switches, but that did not work.  I removed the bgp process and added it again and things worked.  so not sure why it did not work the first time...guess I will never know.

Thanks for your replies

Cisco Employee

Re: Cisco Nexus 7000 BGP default route distribution

Hi,

The command you found is for the global context and is not available in a VRF context. Did you try using a network statement as I suggested?

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: Cisco Nexus 7000 BGP default route distribution

No I did not try the network statement. I did however remove and then add the default route I had configured under the VRF context and then the route was added to the routing table.  I am not sure why it was not added the first time.  Anyway, things are working now. thanks for your replies.

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