quantum gateway cluster to azure express route

[jurgenvrieze]

One of our customers wants to create a Azure Express route connection. This customer has 2 datacenters strechted. On the first location the primairy Azure express route connection is delivered, on the other location the secondairy Azure express route path. The customer has a Quantum gateway cluster in a active-standby mode. Microsoft gives a /29 subnet for bgp routing, which is split into 2 /30 subnets . 

I'm unable to find some good documentation on this. Obviously I should have 3 ip's for the cluster interface, but that's not possible.  Using azure express route VPN, there must be something created like a VIP. I think that's also the case for this, but I'm not sure. Especially because I found that the RID should be the same as the VIP. I don't know how to configure this because I get 2 VIP's.

anyone that can point me in the right direction? Or should I go to dedicated routers for this (as we normally do). 

[the_rock]

We have customer who has dedicated xpress route link. All we had to do back when we set it up is follow BGP documentation.

https://sc1.checkpoint.com/documents/R80.40/WebAdminGuides/EN/CP_R80.40_Gaia_Advanced_Routing_AdminG...

Andy

[emmap]

You might be able to follow this documentation to set the VIP on the /30 given and then use a different subnet for the interface IPs. 

[Darren_Fine]

Hi Jurgenvrieze,

I have the same query as yourself - at other sites I was force to create the same vlan on a different interface just so that I could get both express route links up as I cannot add the same vlan twice to a bond interface 🙂

So for example lets say express route comes in on vlan 191 - I had a bond1.191 with the VIP in the /30 and then I had a duplicate cable going to the external switch and made a eth6.191 with the VIP of the second /30 express route.

This did work but it really feels like a bit of a hack - surely there is a way to have the two /30 's exist on the bond somehow ? To make the solution better 🙂 ?

(I did start thinking about a local loopback but wasnt sure if that would work)

Anyhow - thought I would share and see if your problem was solved ?

Thanks

[Chris_Atkinson]

Did you explore any options on the switch side to map/translate VLAN IDs?

[Darren_Fine]

Hi  Chris,

That is a good hint - I have researched that and I think I have a plan  - will be able to test in the next two weeks and will revert.

Thanks