ACE4710 appliance & LACP

[ali-franks]

Hi,

Seen the docs that state the 4710 appliance uses neither PAGP nor LACP.

The snag I have now is that I have a 4710 connected to 2 x 3750X with one port in each. The switch ports must be LACP but the output of show etherchannel summary is:

2      Po2(SD)         LACP      Gi1/0/13(I) Gi2/0/13(I)

Is that normal? They are both in stand-alone mode.

many thanks

Alastair

[Richard Michael]

Hello Ali,

I am not sure about the expected behaviour when you configure LACP or PAgP with your ACE(not supported). As you understood it right, The ACE does not use either protocol. If you intend to configure Layer 2 EtherChannel bundles between an ACE and a Catalyst switch, all ports in the bundle must be statically assigned at both end.

Neither LACP or PAgP are supported on the 4710. For sure only 802.1q encapsulation is supported (no ISL).

This info is directly from the routing and bridging guide, here is the etherchannel configuration specifically:

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_servic  es/ace_appliances/vA3_1_0/configuration/routing_bridging/guide/interfce.html#wp1358397

Thanks,

Ricky Micky

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[ali-franks]

Thanks Ricky,

that was the doc i was looking at too. so it seems that the ACE ports are in a channel-group but the switch ports operate as stand alone

hmmm...

[Richard Michael]

Hi Ali,

I just checked this in lab. it seems that when you use LACP for bundling, the ports seems to be in standalone and not getting bundled up, but when i just turn the active into "ON" it just bundles up properly.

Thanks,

Ricky Micky

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[ali-franks]

Am i missing something? "ON" is for PAGP is it not? when i try to change it i get:

%With PAgP enabled, all ports in the Channel should belong to the same switch

Command rejected (Port-channel2, Gi1/0/13): Invalid etherchnl mode %

this is what the config looks like on the switch. i didn't include the ACE as there's not a great deal to it:

interface Port-channel2

  switchport trunk encapsulation dot1q

switchport trunk allowed vlan AAA

switchport mode trunk

interface GigabitEthernet1/0/13

switchport trunk encapsulation dot1q

switchport trunk allowed vlan AAA

switchport mode trunk

switchport nonegotiate

speed 1000

duplex full

channel-protocol lacp

channel-group 2 mode active

interface GigabitEthernet2/0/13
switchport trunk encapsulation dot1q
switchport trunk allowed vlan AAA
switchport mode trunk
switchport nonegotiate
speed 1000
duplex full
channel-protocol lacp
channel-group 2 mode active

[Richard Michael]

Hi Ali,

PAgP is auto/desirable, LACP is active/passive and "ON" is a static assignment,

interface Port-channel2

  switchport trunk encapsulation dot1q

switchport trunk allowed vlan AAA----> Should be VLAN number

switchport mode trunk

interface  GigabitEthernet1/0/13

switchport trunk encapsulation dot1q

switchport trunk allowed vlan AAA------> Should be VLAN number

switchport mode trunk

speed 1000

duplex full

channel-group 2 mode on

interface GigabitEthernet2/0/13
switchport  trunk encapsulation dot1q
switchport trunk allowed vlan AAA------> Should be VLAN number
switchport mode trunk
speed 1000
duplex full
channel-group 2 mode on

Let me know if the above config works..

Thanks,

Ricky Micky