Solved!
Go to SolutionU
user_c5d0aa
1 Rookie
•
1 Message
•
2 Points
0
232
January 10th, 2026 16:50
VLT Domain Switch uplink working
We have two Dell switches configured in a VLT domain and two firewalls in HA (Active/Passive) mode. Each switch has links to both the Active and Passive firewalls. On both switches, we created Port-Channel 100 for the Active firewall and Port-Channel 102 for the Passive firewall. In this setup, will traffic flow through both switches simultaneously?
Thanks in advance
(edited)
DELL-Joey C
Moderator
•
4170 Posts
•
20965 Points
0
0
Posted January 12th, 2026 01:38
Hi,
Short answer: Yes—if those port‑channels are configured as VLT peer‑LAGs, traffic can use both switches at the same time.
But because your firewalls are HA Active/Passive, only the active firewall’s LAG will forward user traffic at any given moment. The passive firewall’s LAG is typically down or blocking until failover.
DELL-Joey C
Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
#IWork4Dell
Did I answer your query? Please click on ‘Mark as Accepted Answer’ if I did.