LACP Configuration – Stand-Alone Setup Between Cisco 3650 Stack & Dell VRTX R1 2210 10gb Switch

ciscodellieee-802.1axswitch

LACP between a R1-2210 VRTX 10Gb Switch & Cisco 3650 Stack will not bundle properly. Has anybody seen this/have any ideas? Running what is currently the latest firmware on the VRTX Switch and CAT3K_CAA-UNIVERSALK9-M on the Stack. As a side note- we do have LACP bundles between Dell 630s that are working fine.

Configs:

R1-2210 VRTX 10Gb Switch:

!
interface tengigabitethernet0/1
  channel-group 4 mode auto
  switchport mode trunk
!
interface tengigabitethernet0/2
  channel-group 4 mode auto
  switchport mode trunk
!
interface Port-channel4
 description LINK_TO_CORE
 switchport mode trunk
!
#show lacp protocol-state te0/1
LACP State Machines:
          Receive FSM:           Defaulted State
          Mux FSM:               Collecting Distributing State
          Periodic Tx FSM:       Slow Periodic State
  Control Variables:
          BEGIN:                 FALSE
          LACP_Enabled:          TRUE
          Ready_N:               FALSE
          Selected:              SELECTED
          Port_moved:            FALSE
          NNT:                   FALSE
          Port_enabled:          TRUE
  Timer counters:
          periodic tx timer:     22
          current while timer:   0
          wait while timer:      0
!
#show lacp protocol-state te0/2
 LACP State Machines:
          Receive FSM:           Defaulted State
          Mux FSM:               Detached State
          Periodic Tx FSM:       Slow Periodic State
  Control Variables:
          BEGIN:                 FALSE
          LACP_Enabled:          TRUE
          Ready_N:               FALSE
          Selected:              UNSELECTED
          Port_moved:            FALSE
          NNT:                   FALSE
          Port_enabled:          TRUE
  Timer counters:
          periodic tx timer:     14
          current while timer:   0
          wait while timer:      0
!
#show lacp statistics te0/1 (Same output on te0/2)
te0/1 LACP statistics:
  LACP Pdus sent:                45
  LACP Pdus received:            0
!
#show lacp Port-Channel 4
Port Type 10 Gigabit Ethernet
   Attached Lag id:
   Actor
           System Priority:1
           MAC Address:    f8:b1:56:74:c3:f1
           Admin Key:      1003
           Oper Key:       1003
   Partner
           System Priority:0
           MAC Address:    00:00:00:00:00:00
           Oper Key:       0

Cisco 3650 Stack:

!
interface Port-channel4
 description LINK TO VRTX TE1-2
 switchport mode trunk
!
interface GigabitEthernet2/1/4
 switchport mode trunk
 channel-protocol lacp
 channel-group 4 mode active
!
interface GigabitEthernet3/1/4
 switchport mode trunk
 channel-protocol lacp
 channel-group 4 mode active
!
#sho ether sum
4      Po4(SD)         LACP      Gi2/1/4(I)  Gi3/1/4(I)
!
#sho int po4
Port-channel4 is down, line protocol is down (notconnect)

Configurations are identical on our functioning Port Channels to our Dell 630s.

I appreciate any insight from the community.

Thanks for your time!

Chris.

Best Answer

You have a speed mismatch when using fiber. You are trying to connect 1 Gb to 10 Gb and that won't work.

You can get the C3KX-NM-10G for your Cisco 3560. It can have either four 1 Gb SFPs (copper or fiber), or two 10 Gb SFPs. This will allow you to connect the Cisco and Dell in the way you are attempting.

FYI:

Be aware the the Cisco will default to use PVST for STP. I don't know if the Dell can do that, but you should probably change that on the Cisco before connecting to non-Cisco equipment.

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