Re: OT: Cisco and Foundry LACP

Don't forget about the terminology differences between Cisco and Foundry devices. In Foundry-land the equivalent to an "access" or "trunk" port would be a "tagged" or "untagged" port so the following is true

Foundry tagged port = Cisco trunk port
Foundry untagged port = Cisco access port
Foundry trunk = Cisco EtherChannel

In your case you are not using a dynamic protocol to form the channel (foundry trunk) such as LACP, PAgP is out of the question since it's Foundry. What you have done would be the equivalent of just turning on the port-channel (no negotiation) using the following command in Cisco

Switch(config-if)#channel-group 20 mode on

Once you have your Channel (trunk) or whatever working the traffic will be load-balanced unequally. Hope that helps

-Steve

________________________________
From: Tony Varriale <tvarriale_at_flamboyaninc.com>
To: Cisco certification <ccielab_at_groupstudy.com>
Sent: Thu, December 10, 2009 6:21:56 AM
Subject: RE: OT: Cisco and Foundry LACP

Maybe you forgot about etherchannel on?

tv

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Radioactive Frog
Sent: Thursday, December 10, 2009 8:06 AM
To: Danshtr
Cc: Cisco certification
Subject: Re: OT: Cisco and Foundry LACP

Hi Dan,
Understand but without any LACP or PAGP we can not load balance.

http://en.wikipedia.org/wiki/Link_Aggregation_Control_Protocol#Link_Aggregat
ion_Control_Protocol

</kermit>

On 12/10/09, Danshtr <danshtr_at_gmail.com> wrote:
> Kermit,
>
> I have no experience with Foundry, but LACP is not about load-balancing
> inside the etherchannel. LACP is about forming etherchannels.
>
> HTH,
> Dan #13685(RS/Sec/SP)
> Troubleshooting blog: http://dans-net.com
>
>
>
> On Thu, Dec 10, 2009 at 3:33 PM, Radioactive Frog
> <pbhatkoti_at_gmail.com>wrote:
>
>> Does anyone has experience with Foundry ether-channel (src-dst-ip)
>> load balancing?
>> according to the foundry manual, it says just trunk the ports and no
>> need to enable LACP. without LACp how does it do the load balancing
>> with Cisco?
>>
>> Cisco-sw====3 ports====foundry-sw
>>
>> thanks
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Thu Dec 10 2009 - 14:51:43 ART