Re: Arista MLAG to Cisco 6500 VSS [ LACP Issue ]

to add

When regular port-channel config is added on the 6500 and you have different ports added on both chassis the VSS will pick this up as a MEC (multi ether-channel chassis)

It's seems it's seeing multiple macs or system-id's via the MLAG ports on the Arista

Depends on how Arista encode the frames, I don't think MLAG or MEC are RFC compliant even if LACP is

Where you could get Arista nodes communicating using MLAG

--
BR
Tony
Sent from my iPad
> On 5 Mar 2014, at 21:32, Cristian Matei <cmatei_at_ine.com> wrote:
> 
> I say it should work, is MLAG correctly configured on Arista; if so, all
> ports in the ether channel towards VSS should use the same system-id? What
> does B3show ether channel summaryB2 show on VSS?
> Regards,
> Cristian.
> 
>> On 05/03/14 23:15, "Tony Singh" <mothafungla_at_gmail.com> wrote:
>> 
>> In the system-id negotiated in your LACP frames your multi chassis lag
>> has a different base mac-address per unit
>> 
>> Hence no LACP
>> 
>> Had the same issue between a Cisco ASA pair going to a stackable switch,
>> it can't be done from what I've seen
>> 
>> Maybe someone will override me
>> 
>> --
>> BR
>> 
>> Tony
>> 
>> Sent from my iPad
>> 
>>> On 5 Mar 2014, at 12:53, Taufik Kurniawan <ktaufik_at_gmail.com> wrote:
>>> 
>>> Dear All,
>>> 
>>> Does anyone here has an experience to connect an arista pair (MLAG)
>>> with a pair of 6500 (VSS).
>>> 
>>> We are trying this, but a pair of 6500 (VSS) complaining below messages
>>> :
>>> 
>>> Feb 27 20:05:13.351: %LACP-SW1-4-MULTIPLE_NEIGHBORS: Multiple
>>> neighbors detected on Te1/1/1: new neighbor(sys-mac-id:
>>> 001c.7318.b7e0, port: 0x29), old neighbor(sys-mac-id: 021c.7318.b7e0,
>>> port: 0x29)
>>> 
>>> Feb 27 20:05:14.211: %LACP-SW1-4-MULTIPLE_NEIGHBORS: Multiple
>>> neighbors detected on Te2/1/8: new neighbor(sys-mac-id:
>>> 001c.7318.ba32, port: 0x802A), old neighbor(sys-mac-id:
>>> 021c.7318.b7e0, port: 0x802A)
>>> 
>>> 
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