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Import ospf routen in two routing instancen

[ Edited ]
‎05-18-2019 03:43 AM

Hi guys,

 

I have a problem to import ospf routes in my specified init.0 tables.

 

I have two L3 vrf instances on my Juniper MX router an I must import two virtuell router from my neighboor network.

We have bgp an the neighboor network have ospf.

Thr routes from the vr-voip from my neighbour must go in the L3_VoIP.init.0 and the routes from th vr-router wifi must go in the L3_Aerohive.init.0

I became on my Juniper Interface two vlans from his virtuell routers and i must import them in the init.0 table of my vr-routers.

Today all routes going in the global init.0 table and one vr router can see the other vr-router.

 

 

Kopplung BGP OSPF.jpg

 

 

5 REPLIES 5
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Routing

Re: Import ospf routen in two routing instancen

‎05-18-2019 07:15 AM

Hi Thomas,

 

You can simply configure a policy to match the routes of interest and then use "instance-import" in the respective VRF.

 

See example here: https://kb.juniper.net/InfoCenter/index?page=content&id=KB19860&pmv=print

 

Hope this helps.

 

Regards,
-r.

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Re: Import ospf routen in two routing instancen

‎05-18-2019 08:35 AM

Hello,

The canonical way to do it is:

1/ configure 2 VLANs over ge-1/3/8, say, VLAN 100 and VLAN 200

2/ add IP addresses on each end

3/ terminate VLAN 100 L3 subinterface (say, ge-1/3/8.100) in "L3_Aerohive" VRF

4/ terminate VLAN 200 L3 subinterface (say, ge-1/3/8.200) in "L3_Voip" VRF

5/ configure OSPFv2 over ge-1/3/8.100 and ge-1/3/8.200 inside these VRFs. 

6/ Redistrubute routes of Your choice (MP-iBGP, static, direct etc) into OSPF with OSPF export policies

6a/ optionally, You'd need to disable DN bit and VPN route tag if Extreme side does not see routes from Kunde 2 MX

7/ redistribute routes received from Kunde 1 over OSPF into MP-iBGP on MX side

If You cannot create 2 VLANs on ge-1/3/8 then it becomes more difficult.

HTH

Thx
Alex 

 

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Re: Import ospf routen in two routing instancen

[ Edited ]
‎05-19-2019 11:27 PM

Hi Alex.

i habve a question about  your help

When I read your answer on point 3 and 4 I thinks the routes from the two vlan going directly in the L3-Aerohive.init.0 and wifi.init.0

Is this richt or false.

 

I want do not work without policies, i this possible?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Solution
Accepted by topic author thomas.block@esh.essen.de
‎05-20-2019 03:10 AM

Re: Import ospf routen in two routing instancen

‎05-19-2019 11:30 PM

Hello,


thomas.block@esh.essen.de wrote:

 

When I read your answer on point 3 and 4 I thinks the routes from the two vlan going directly in the L3-Aerohive.init.0 and wifi.init.0

Is this richt or false.

 

 

Das ist richtig

 


thomas.block@esh.essen.de wrote:

 

I want do not work without policies, i this possible?

 

 

In JUNOS, redistributing between OSPF and BGP requires policies.

HTH

Thx

Alex

_____________________________________________________________________

Please ask Your Juniper account team about Juniper Professional Services offerings.
Juniper PS can design, test & build the network/part of the network as per Your requirements

+++++++++++++++++++++++++++++++++++++++++++++

Accept as Solution = cool !
Accept as Solution+Kudo = You are a Star !
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Re: Import ospf routen in two routing instancen

‎05-20-2019 03:09 AM

Thank you very mutch for your help in this topic.

The first vive points we have done and it works very fine.

We do not need  to use a policie and it works exelent.

 

 

Thank you very mutch and it is very important for us that we have understood this way...

 

I am proud of you..

 

THX

 

Thomas