Active - Active firewall deployment across two data centers

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Active - Active firewall deployment across two data centers

L2 Linker

Hi All, 

 

We are exploring the firewall deployment options for one of our customers who have a requirement to stretch few VLANs across 2 data centers most probably using VXLAN/EVPN. The options currently being explored are:

 

1. Active-Standby firewalls in each data center

2. Active-Active firewall  with one node in each data center

 

Are there any design/deployment references for these scenarios especially how to avoid double firewalling and the possible scenarios for asymmetric routing and how to avoid them. 

2 REPLIES 2

Cyber Elite
Cyber Elite

you can avoid asymmetric routing by not deploying in Active/Active 😉

 

do both datacenters need to be 'hot' or is there one warm standby? do both need active connections to the outside and will the bandwidth needed exceed the VXLAN/EVPN capability?

 

I'd try to void A/A as that complicates your configuration tremendously with very little ROI (you'll also need to enable HA3 and make sure jumbo frames are supported over the VXLAN/EVPN etc)

Tom Piens
PANgurus - Strata specialist; config reviews, policy optimization

Hi, 

 

Thanks for your response. 

 

Both datacenters need to be "Hot" and will have active connections outside. The bandwidth will not exceed VXLAN/EVPN. I am trying to understand if there are any deployment guides/design options for deploying A/A across data centers in Palo Alto. 

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