7254XSQ SMLT/LACP to Cisco

[bfaltys]

Hello. I’m trying to get an LACP link to come up to a Cisco. I’ve spent too much time looking on Google without the most helpful of results so I’m hoping someone here can help. Here is some of the relevant configuration…

The interfaces on the Cisco:

interface GigabitEthernet1/1/2

switchport mode trunk

logging event trunk-status

channel-protocol lacp

channel-group 10 mode active

interface GigabitEthernet2/1/2

switchport mode trunk

logging event trunk-status

channel-protocol lacp

channel-group 10 mode active

interface Port-channel10

switchport mode trunk

On the VSP:

# LACP CONFIGURATION
#

vlacp enable
lacp smlt-sys-id d4:78:56:xx:xx:xx
lacp enable

# MLT CONFIGURATION
#

mlt 22 enable name "MY-MLT"

# MLT INTERFACE CONFIGURATION
#

interface mlt 22
smlt
lacp enable key 22
exit

interface GigabitEthernet 1/41
name "MLT22"
no shutdown
lacp key 22 aggregation enable
lacp enable
sflow sampling-rate 8192
exit

MY-SWITCH:1(config)#show mlt 22

===============================================================================
                                    Mlt Info
===============================================================================
                                         PORT    MLT        MLT           PORT         VLAN
MLTID IFINDEX NAME      TYPE   ADMIN CURRENT    MEMBERS       IDS
----------------------------------------------------------------------------------------------------
22         6165  MY-MLT     trunk   smlt        norm                                 2222

                          DESIGNATED   LACP      LACP
MLTID IFINDEX  PORTS            ADMIN     OPER
----------------------------------------------------------------------------------------------------
22       6165       null                  enable    down

                                                                                                                WHICH PORTS
                        WHERE        LOCAL                      REMOTE                   PROGRAMMED
MLTID NAME   CREATED    PORT MEMBERS      PORT MEMBERS      IN DATA PATH
----------------------------------------------------------------------------------------------------
22      MY-MLT   LOC & REM                                      NONE

                          ENCAP                                          PVLAN        VID
MLTID IFINDEX  DOT1Q     LOSSLESS   PVLAN     TYPE         TYPE       FLEX-UNI
----------------------------------------------------------------------------------------------------
22       6165       enable      disable               -              -                -            disable

A message I found in the logs:

MY-SWITCH:1(config)#show log file tail
CP1 [02/10/21 12:41:44.739:CST] 0x000ec5d1 00000000 GlobalRouter LACP INFO A churn condition has been detected for port 1/41 as the  PARTNER is out of sync.

[bfaltys]

I’m new to these Extremes, but to me, this seems that the port is up and not learning any MACs…

[Miguel-Angel_RO]

What Cisco model is it?

Could you share ?:

show isis spbm

show virtual-ist

Mig

[bfaltys]

I do see that we’re sending LACP PDUs, but not receiving anything.

====================================================================================================
                                Port Stats Lacp
====================================================================================================
PORT     TX       RX       TX         RX         TX              RX              RX         RX
NUM      LACPDU   LACPDU   MARKERPDU  MARKERPDU  MARKERRESPPDU   MARKERRESPPDU   UNKNOWN    ILLEGAL
----------------------------------------------------------------------------------------------------
1/41     185      0        0          0          0               0               0          0

[bfaltys]

MY-SWITCH:1(config)#sh run | b 1/41
interface GigabitEthernet 1/41
encapsulation dot1q

[Miguel-Angel_RO]

Could you double check this?:

interface GigabitEthernet 1/41

encapsulation dot1q