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Question

Routing between Global Route and VRF

  • 9 September 2019
  • 4 replies
  • 713 views

Hi!, i'm looking for routing between GoblalRoute and any VRF in VSP4450 on 7.1.1.0 VOS.

This is my config example:
- add GlobalRoute routes to a VRF:
router vrf vrf-red
Isis accept i-sid 0
exit
isis apply accept vrf vrf-red

*** Where i-sid 0 is the Global Route Table.

- add routes from vrf to GRT:
router isis
accept i-sid xxxx
exit
isis apply accept

This works but i can't make the GlobalRoute learn the 0.0.0.0/0 route from the VRF. Can anyone help me?.

Thanks!,
Joan Ale

4 replies

Userlevel 1
Assuming the default route you listed is located in your vrf-red and without seeing the entire script, I would guess you haven't redistributed the static route for your VRF.
"isis apply redistribute static vrf vrf-red"

hope this helps.
Steve
Hello sdockham, thanks for you help! i get the next output when y apply the redistribute. You think i need to redistribute on globalRT too?.

NEW-VSP-01:1(config-isis)#isis apply redistribute static vrf aasa
Error: ip redistribute entry is not found

EDIT:
router vrf vrf-red
isis redistribute static
isis redistribute static enable
isis apply redistribute static vrf vrf-red

I apply those commands and it's working now, i gonna make some routing test. Thanks again!.

=====================================================================================================
IP Route - GlobalRouter
=====================================================================================================
NH INTER
DST MASK NEXT VRF/ISID COST FACE PROT AGE TYPE PRF
-----------------------------------------------------------------------------------------------------
0.0.0.0 0.0.0.0 172.29.2.1 vrf-red 1 2 ISIS 0 IB 200
1.1.1.0 255.255.255.0 1.1.1.1 - 1 0 LOC 0 DB 0


Thanks,
Joan Ale

Hi @Joanale ,

 

I found your post since I had a similar issue.

The above info was of great help, but there is still something that does not work as expected.

 

The routes which are imported into the GRT from any VRF, are imported as ISIS, but not ISIS SPBM. Hence, they are not available in the fabric.

 

In the above post, it looks like your default route has the same issue:

0.0.0.0 0.0.0.0 172.29.2.1 vrf-red 1 2 ISIS 0 IB 200

 

I think this should be:

0.0.0.0 0.0.0.0 172.29.2.1 vrf-red 1 2 ISIS 0 IBS 200

 

Or am I missing something?

Hi @Joanale ,

 

I found your post since I had a similar issue.

The above info was of great help, but there is still something that does not work as expected.

 

The routes which are imported into the GRT from any VRF, are imported as ISIS, but not ISIS SPBM. Hence, they are not available in the fabric.

 

In the above post, it looks like your default route has the same issue:

0.0.0.0 0.0.0.0 172.29.2.1 vrf-red 1 2 ISIS 0 IB 200

 

I think this should be:

0.0.0.0 0.0.0.0 172.29.2.1 vrf-red 1 2 ISIS 0 IBS 200

 

Or am I missing something?

Hello @Fijs ,

I’m still waiting for window to implement this, but you right if it’s not on spbm it can’t be sended to fabric. Maybe @sdockham can help us?.

 

Thanks.

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