VPC AND VLT DELL SWITCHES CONNECTIVITY

[Sajid Khan]

NEXUS TO DELL SWITCH CONNECTIVITY

[Sajid Khan]

VPC VS VLT INTEROPERABILITY DELL

[M02@rt37]

Hello @Sajid Khan,

Here: https://www.manualslib.com/manual/1349794/Dell-Poweredge-Fx2.html?page=70#manual

[Sajid Khan]

I am using Nexus OS image not ACI image, the nexus model is 9380YC-FX3. In the manual the example is for Nexus aci or simple nx os image.

[MHM Cisco World]

[Sajid Khan]

[Sajid Khan]

Now we changed toplogy and we contacted with cisco to implement like this toplogy and on Dell side they have configured VLT but still vpc on our side id down,

[Sajid Khan]

config t
hostname 9K-DCHITA-SECURITY-SW1
vlan 351
name MGTSW-SUpgrade
exit
vlan 352
name CCTVMonitering-SUpgrade
exit
vlan 353
name SERVER-SAN-SUpgrade
exit
vlan 354
name CCTV-SUpgrade
exit
vlan 355
name DELLEMC-MANAGEMENT
exit
feature telnet
feature vpc
feature lacp
feature interface-vlan
interface vlan 351
ip address 10.60.64.252 255.255.255.0
no shutdown
exit
interface vlan 352
ip address 10.60.65.1 255.255.255.0
no shutdown
exit
interface vlan 353
ip address 10.60.67.1 255.255.255.0
no shutdown
exit
interface vlan 354
ip address 10.60.63.1 255.255.224.0
no shutdown
exit
interface vlan 355
ip address 10.60.66.1 255.255.225.0
no shutdown
exit
vrf context VPC-KEEPALIVE
interface Ethernet 1/48
no shutdown
no switchport
vrf member VPC-KEEPALIVE
ip address 50.50.50.1 255.255.255.0
exit
interface Ethernet 1/49, Ethernet 1/50
description **VPC-PEERLINK**
channel-group 100 mode active
no shutdown
vpc domain 255
peer-gateway
role priority 20
peer-keepalive destination 50.50.50.2 source 50.50.50.1 vrf VPC-KEEPALIVE
exit
interface port-channel 100
description **VPC-PEERLINK**
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354,355
spanning-tree port type network
vpc peer-link
exit
interface Ethernet 1/41, Ethernet 1/42
no shutdown
channel-group 150 mode active
interface port-channel 150
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354
vpc 150
exit

interface Ethernet 1/1, Ethernet 1/2, Ethernet 1/3, Ethernet 1/4, Ethernet 1/5, Ethernet 1/6, Ethernet 1/7, Ethernet 1/8
no shutdown
switchport
channel-group 1 force mode active
interface port-channel 1
description To MX ChassisDell
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354,355
vpc 1
exit

feature hsrp
interface Vlan 351
no shutdown
hsrp 51
ip 10.60.64.254
priority 200
preempt
exit
interface Vlan 352
no shutdown
hsrp 52
ip 10.60.65.254
priority 200
preempt
exit
interface Vlan 353
no shutdown
hsrp 53
ip 10.60.67.254
priority 200
preempt
exit
interface Vlan 354
no shutdown
hsrp 54
ip 10.60.63.254
priority 200
preempt
exit

interface vlan 355
no shutdown
hsrp 55
ip address 10.60.66.254
priority 200
preempt
exit

config t
hostname 9K-DCHITA-SECURITY-SW2
vlan 351
name MGTSW-SUpgrade
exit
vlan 352
name CCTVMonitering-SUpgrade
exit
vlan 353
name SERVER-SAN-SUpgrade
exit
vlan 354
name CCTV-SUpgrade
exit
vlan 355
name DELLEMC-MANAGEMENT
exit
feature telnet
feature vpc
feature lacp
feature interface-vlan
interface vlan 351
ip address 10.60.64.253 255.255.255.0
no shutdown
exit
interface vlan 352
ip address 10.60.65.2 255.255.255.0
no shutdown
exit
interface vlan 353
ip address 10.60.67.2 255.255.255.0
no shutdown
exit
interface vlan 354
ip address 10.60.63.2 255.255.224.0
no shutdown
exit
interface vlan 355
ip address 10.60.66.2 255.255.225.0
no shutdown
exit
vrf context VPC-KEEPALIVE
interface Ethernet 1/48
no shutdown
no switchport
vrf member VPC-KEEPALIVE
ip address 50.50.50.2 255.255.255.0
exit
interface Ethernet 1/49, Ethernet 1/50
description **VPC-PEERLINK**
channel-group 100 mode active
no shutdown
vpc domain 255
peer-gateway
role priority 40
peer-keepalive destination 50.50.50.1 source 50.50.50.2 vrf VPC-KEEPALIVE
exit
interface port-channel 100
description **VPC-PEERLINK**
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354,355
spanning-tree port type network
vpc peer-link
exit
interface Ethernet 1/41, Ethernet 1/42
no shutdown
channel-group 150 mode active
interface port-channel 150
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354
vpc 150
exit

interface Ethernet 1/1, Ethernet 1/2, Ethernet 1/3, Ethernet 1/4, Ethernet 1/5, Ethernet 1/6, Ethernet 1/7, Ethernet 1/8
no shutdown
switchport
channel-group 1 force mode active
interface port-channel 1
description To MX ChassisDell
no shutdown
switchport
switchport mode trunk
switchport trunk allowed vlan 1,351,352,353,354,355
vpc 1
exit

feature hsrp
interface Vlan 351
no shutdown
hsrp 51
ip 10.60.64.254
priority 150
preempt
exit
interface Vlan 352
no shutdown
hsrp 52
ip 10.60.65.254
priority 150
preempt
exit
interface Vlan 353
no shutdown
hsrp 53
ip 10.60.67.254
priority 150
preempt
exit
interface Vlan 354
no shutdown
hsrp 54
ip 10.60.63.254
priority 150
preempt
exit

interface vlan 355
no shutdown
hsrp 55
ip address 10.60.66.254
priority 150
preempt
exit

[MHM Cisco World]

you cannot merge all link connect to two DIFFERENT SW in one VPC except the case these SW (DELL SW) use stack technology like cisco, which from your topology it appear that each SW is standalone 
so you cannot merge all link 
but you can merge link go to one Dell SW in one vPC in both NSK as I show you in above

[Sajid Khan]

Actually on two dell switches it does not support stack configuration. But they have configured VLT on Dell which is just like VPC. The dell chassis is MX7000.

[MHM Cisco World]

In your topolgy there is no interconnect between two dell SW' are there interconnect? 

[Sajid Khan]

Yes they are interconnected.

[Sajid Khan]

Dell switches are interconnected just like vpc nexus switches.

[MHM Cisco World]

Two points must check then 

Stp mode in both pairs match or compatible 

Check show lacp counter see if  both pairs exchange lacp.

[Sajid Khan]

can you share with me that both pairs exchange lacp. on which switch i should run that command, please explain to me how to troubleshoot.