Cisco 9136 Lag/lacp on switches

[owen2]

Hi All,

Trying to make full use of the 9136 dual port. Enable LAG on WLC 9800-L-C for AP Profile.
However, the ports configured with LACP won't work on the switch side.
when I switch to the Normal Trunk port it works.
Does the AP not need LACP on switches to work?

[RoadRunner4k]

Which version do you use on the WLC 9800 ? 

[owen2]

@RoadRunner4k 17.9.4a

[Leo Laohoo]

In non-Dot1X ports, dual-uplink feed to a 9136 works without any LAG enabled on either side.

[owen2]

yes, it works well for a normal trunk port.

interface GigabitEthernet1/0/48
description Connect to AP12
switchport trunk native vlan 410
switchport trunk allowed vlan 410,100-300
switchport mode trunk
end

AP12#ping 172.16.23.1
Sending 5, 100-byte ICMP Echos to 172.16.23.1, timeout is 2 seconds

PING 172.16.23.1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0.851/0.964/1.012 ms
AP12#
even when i disconnect the primary connection, the WIFI is till running.
So i trying to confirm lacp is not needed no switch side.

[marce1000]

 - Ref : https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9136-series-access-points/cat9136-series-ap-deployment-guide.html  
                    Look for LAG with Find in your browser 

 M.

[balaji.bandi]

However, the ports configured with LACP won't work on the switch side.

what Switch model ? what IOS code running the Switch ?

can you post sample configuration of the switch side ?  along with show ether x summary.

[owen2]

running on 9200 with firmware 17.6.6

interface Port-channel11
switchport trunk native vlan 410
switchport trunk allowed vlan 410,100-300
switchport mode trunk
end
!
interface GigabitEthernet1/0/1
switchport trunk native vlan 410
switchport trunk allowed vlan 410,100-300
switchport mode trunk
channel-group 11 mode active
end
!
interface GigabitEthernet1/0/2
switchport trunk native vlan 410
switchport trunk allowed vlan 410,100-300
switchport mode trunk
channel-group 11 mode active
end

AC_01#show etherchannel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator

M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

A - formed by Auto LAG

Number of channel-groups in use: 1
Number of aggregators: 1

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
11 Po11(SD) LACP Gi1/0/1(w) Gi1/0/2(D)

AC_01#
*Dec 20 04:01:49.988: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to up
AC_01#
*Dec 20 04:01:51.755: %ETC-5-L3DONTBNDL2: Gi1/0/1 suspended: LACP currently not enabled on the remote port.
AC_01#
*Dec 20 04:01:59.295: %ETC-5-L3DONTBNDL2: Gi1/0/2 suspended: LACP currently not enabled on the remote port.

[marce1000]

  >.....ETC-5-L3DONTBNDL2: Gi1/0/1 suspended: LACP currently not enabled on the remote port.
             - On the interfaces configuration add : channel-group 11 mode on

 M.

[MHM Cisco World]

the dual Port have three option 
static LAG 
LACP 
PAgP

so in Sw can you share 
show lacp neighbor 
show etherchannel summry 

MHM 

[owen2]

AC_01#show lacp neighbor
AC_01#show etherchannel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator

M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

A - formed by Auto LAG

Number of channel-groups in use: 1
Number of aggregators: 1

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
11 Po11(SD) LACP Gi1/0/1(w) Gi1/0/2(D)

AC_01#
*Dec 20 04:01:49.988: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to up
AC_01#
*Dec 20 04:01:51.755: %ETC-5-L3DONTBNDL2: Gi1/0/1 suspended: LACP currently not enabled on the remote port.
AC_01#
*Dec 20 04:01:59.295: %ETC-5-L3DONTBNDL2: Gi1/0/2 suspended: LACP currently not enabled on the remote port.

[MHM Cisco World]

Configuration > Wireless > Access Points > [select the Catalyst 9136I AP] > Interfaces > Link Aggregation (LAG)

can you share this fomr WLC-9800
thanks 

MHM

[owen2 · Accepted solution]

After long search and help from our distributor. There a additional feature need to enable .
AP LAG mode under wireless global need to enable, which was disable by default.