Problems to use LAG with 2504 and 3560

Hello, we recently bought a 2504 wireless controller, and I can't using the aggregation of links (LAG) to connect the WLC to the network.   I was able to connect properly to the contoller using a single link, but as soon as I activate LAG (on the switch and wlc) I'm unable to access the controller.  I think that I have the correct position of the switches as the port channel is active and shows active on the controller via cdp.

I can't do a ping of the controller, but I see it via cdp.

The controller runs 7.4.100.0 with bootloader 1.0.18

The switch is a WS-C3560G-48PS and running 12.2 (25r) SE

The controller is 10.10.10.202.

No access-lists on interface vlan switch

Note that I have currently the 2nd stop of the port as the first member of the Association is active.

Thoughts?   Any help would be appreciated.

Thank you

Bryan

#sho ip arp 10.10.10.202

Protocol of age (min) address Addr Type Interface equipment

Internet 10.10.10.202 143 5478.1aad.1f0b ARPA Vlan1

#sho address mac-address-table 5478.1aad.1f0b

Mac address table

-------------------------------------------

VLAN Mac Address Type Ports

----    -----------       --------    -----

1 5478.1aad.1f0b m 1 DYNAMIC

Total of the Mac addresses for this criterion: 1

#sho cdp neighbors detail

-------------------------

Device ID: wubc_wlc

Workshop / entry:

IP address: 10.10.10.202

Platform: AIR-CT2504-K9, capacity: host

Interface: GigabitEthernet0/40, ID of Port (outgoing port): GigabitEthernet0/0/1

Hold time: 153 s

Version:

Name of the manufacturer: Cisco Systems Inc.  Product name: Cisco Controller Product Version: 7.4.100.0 Version RTOS: Erro Bootloader Version: 1.0.18 Type of Build: DATA + WPS

version of the announcement: 2

Duplex: full

Workshop / management:

-------------------------

Device ID: wubc_wlc

Workshop / entry:

IP address: 10.10.10.202

Platform: AIR-CT2504-K9, capacity: host

Interface: GigabitEthernet0/40, ID of Port (outgoing port): LAGInterface0/3/1

Hold time: 148 s

Version:

Name of the manufacturer: Cisco Systems Inc.  Product name: Cisco Controller Product Version: 7.4.100.0 Version RTOS: Erro Bootloader Version: 1.0.18 Type of Build: DATA + WPS

version of the announcement: 2

Workshop / management:

# sho etherchannel summary

Flags: D - low P - port-channel

I have - autonomous s - suspended

H Eve (LACP only)

R - Layer 3 S - Layer2

U - running f - cannot allocate an aggregator

u - unfit to tied selling

w waiting to be aggregated

d default port

Number of channels: 1

Number of aggregators: 1

Protocol for the Port-Channel port group

------+-------------+-----------+-----------------------------------------------

1 Po1 (SU) - Gi0/40 (P) Gi0/42 (D)

#sho run IM int 0/40

Building configuration...

Current configuration: 123 bytes

!

interface GigabitEthernet0/40

switchport trunk encapsulation dot1q

switchport mode trunk

channel-group mode 1 on

end

#sho run IM int 0/42

Building configuration...

Current configuration: 133 bytes

!

interface GigabitEthernet0/42

switchport trunk encapsulation dot1q

switchport mode trunk

Shutdown

channel-group mode 1 on

end

#sho run int port-channel 1

Building configuration...

Current configuration: 92 bytes

!

Interface Port - Channel 1

switchport trunk encapsulation dot1q

switchport mode trunk

end

Make sure that your markup of the wlc management interface.

Sent by Cisco Support technique iPhone App

Tags: Cisco Wireless

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