Tuesday, July 16, 2019

Dell S4148 VLT / VRRP

Hi guys, I have a pair of S4148's that i am upgrading to from N3000 switches.

My users are on an N3000 stack and my servers will be on VLAN 200 with each server having a LACP LAG connected to each S4148. I have set the S4148's up with VLT and it seems to work great. However i now want to be able to route to the N3000 stack that my clients are on. Looking for some advice if my setup is correct and / or there is another way i should be doing this.

N3000 Stack has 192.168.x.x ip's and the S4148's have 10.x.x.x I have a LAG configured on the N3000 with 2 ports connecting to both S4148s with VLAN 40 with IP address 10.40.12.1 and a static route for 10.200.x.x to 10.40.12.10

Below is an example of my config on the S4148's i don't want to plug the connections in until the weekend to test as the clients are live (and a lot of servers are still on that stack but no overlapping IPs) VLAN 200 will be for my servers where as VLAN 40 should be for the route between the N3000 and S4148's I am hoping that when i can plug the cables in, i can essentially wipe both S4148s and run the below code to have everything working as it should (i have taken out ACLs and the other 40 port-channels to reduce spam). I want to try and get a jump on it as i dont have anything i can test against in the office!

I was unsure if i needed to add vlan 200 into its own VRRP group or not as the switch the packet is on should never leave that switch.

Any feedback / advice is appreciated!

config t spanning-tree mode rstp interface ethernet 1/1/26 no switchport exit interface ethernet 1/1/30 no switchport exit vlt-domain 254 discovery-interface ethernet1/1/26 discovery-interface ethernet1/1/30 vlt-mac 00:00:00:00:00:02 backup destination 192.168.90.220 peer-routing interface vlan 200 ip address 10.200.10.1/24 interface vlan 40 ip address 10.40.12.12/24 vrrp-group 254 virtual-address 10.40.12.10 priority 200 no preempt vrrp mode active-active interface port-channel 1 vlt-port-channel 1 switchport mode trunk switchport trunk allowed vlan 200 exit interface port-channel 2 vlt-port-channel 2 switchport mode trunk switchport trunk allowed vlan 200 exit interface ethernet 1/1/1 channel-group 1 mode active lacp rate fast interface ethernet 1/1/9 channel-group 2 mode active lacp rate fast ip route 192.168.0.0/16 10.40.12.1 


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