I see the 1/1 port that is connected to the PC is configured for "tagged" frames, as per the vlan interface config.  If the PC is not set up to handle .1q tagged frames, you should change 1/1 to untagged.

Moving to your link between the cisco and the dell, is this a port channel?  According to the cisco config you are forcing LACP with "mode active", but on the dell side, there is no port channel configured.  Depending on whether you want a port channel (LAG), or a single link between the switches, it shouldn't be too hard to get that sorted out. 

Good luck.

Thanks for the reply BealDrid2!

So I temporarily took 1/1 out of vlan3, so 1/1 is no longer set for tagged frames 

When I try to put the Dell interface into port-channel (LAG) I get the %error port in L2-mode% .  They are both in switchport mode so L2 should work? I read that dell port-channels support L2 mode. 

 

interface TenGigabitEthernet 1/52/1
no ip address
portmode hybrid
switchport
no shutdown
Dell10gBSwitch01(conf-if-te-1/52/1)#exit
Dell10gBSwitch01(conf)#int port-channel 8
Dell10gBSwitch01(conf-if-po-8)#show config
!
interface Port-channel 8
no ip address
portmode hybrid
switchport
no shutdown
Dell10gBSwitch01(conf-if-po-8)#channel-member te1/52/1
% Error: Port is in Layer-2 mode Te 1/52/1.
!

interface TenGigabitEthernet 1/1
no ip address
switchport
no shutdown

interface Vlan 3
name Engineering
no ip address
tagged TenGigabitEthernet 1/52/1
no shutdown

 

 

Do you want to configure a "LACP" enabled port-channel between the Dell and Cisco, or is this just a single link?  If a single link, don't bother with a port channel.  If you do have multiple links and you want to do LACP port channel, here's how you do it on the DELL side:

interface TenGigabitEthernet 0/43
 no ip address
!  
 port-channel-protocol LACP 
  port-channel 1 mode active 
 no shutdown
!
interface TenGigabitEthernet 0/44
 no ip address
!  
 port-channel-protocol LACP 
  port-channel 1 mode active 
 no shutdown
! 

interface Port-channel 1
 no ip address
 portmode hybrid
 switchport
 no shutdown
!

interface Vlan 100
 no ip address
 untagged Port-channel 1
!

!
interface Vlan 101
 no ip address
 tagged Port-channel 1
 shutdown
!

Portmode hybrid, allows you to do untagged frames on this port channel as well as tagged. In the above example, Vlan 100 is the "native" vlan and is untagged.  Vlan 101 is a tagged VLAN.

When you removed the tagged configuration from Te1/1, I'm unsure of the reason.  What vlan is that port supposed to be in? And is it supposed to receive tagged or untagged frames?

Ah, I finally got port-channel set up, but not in hybrid. I will give this a shot. 

We are eventually going to set up multi links. 

Thank you!!

I still cannot ping pc connected to Dell4048 TenGigabitEthernet 1/1 from the Dell-switch-Console. I also tried with Vlan 3 (101 in your example) set to 'shutdown'.

I can ping my PC which is in vlan 3 on the Cisco core switch from the Dell-Switch-CONSOLE.

 

Here's my current config:

interface TenGigabitEthernet 1/52/1
description to int Core A-1 Te1/1/5
no ip address
!
port-channel-protocol LACP
port-channel 8 mode active
no shutdown

interface Port-channel 8
no ip address
portmode hybrid
switchport
no shutdown

interface Vlan 616
description dummy vlan to nowhere
no ip address
untagged Port-channel 8
no shutdown

interface Vlan 3
name Engineering
no ip address
tagged TenGigabitEthernet 1/1
tagged Port-channel 8
no shutdown

interface TenGigabitEthernet 1/1
no ip address
switchport
no shutdown

 

Cisco Core-Switch is unchanged:

interface TenGigabitEthernet1/1/5
description Link to DellStackTe1/52/1
switchport trunk native vlan 616
switchport trunk allowed vlan 3,150
switchport mode trunk
switchport nonegotiate
channel-group 8 mode active

ip dhcp pool VLAN3
network 172.16.3.0 255.255.255.0

In regards to the "shutdown" in the VLAN interface-  This is only pertinent if the VLAN is a Layer-3 interface with an IP address.  If you had an IP on that vlan interface, the "shutdown" would essentially prevent any inter-vlan routing from taking place for that vlan on the switch. 

If you are trying to ping from the S4048 switch, you'll need an IP address on that switch.  To test, you could throw an IP address from the PC subnet onto the vlan3 interface temporarily, then do a ping to the PC.

switch> ping 1.2.3.4 src vl3

This will use the vlan 3 IP address as source.  For this I'm not sure if you need "no shutdown" on the vlan or not.