[AusNOG] How to setup something like LACP across two switches

[Philip Loenneker]

Ah, vPC – gotta love consistent naming across vendors! ☺

From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Andrew Jones
Sent: Friday, 20 April 2018 9:24 AM
To: James Cunningham <jjazza26 at gmail.com>; ausnog at lists.ausnog.net
Subject: Re: [AusNOG] How to setup something like LACP across two switches

Here you go - https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/layer2/503_U2_1/b_Cisco_n3k_layer2_config_guide_503_U2_1/b_Cisco_n3k_layer2_config_gd_503_U2_1_chapter_01000.html

Andrew Jones
0435 658 228

From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of James Cunningham
Sent: Friday, 20 April 2018 9:18 AM
To: ausnog at lists.ausnog.net<mailto:ausnog at lists.ausnog.net>
Subject: [AusNOG] How to setup something like LACP across two switches

Hello Fellow Ausnoggers,

I'm hoping that I can quickly pick the brain of someone more knowledgeable in data centre networking than myself.

We have a customer in one of our racks in Equinix who has a single network switch, and some servers connected to it. We currently have two connections from our switch to the customer's switch, with LACP for redundancy (and as a side effect, we get a slight bandwidth boost for 2 x 1Gbps connections, which is a slight bonus).

We would like to improve this by putting in two network switches on our end, to protect again a single switch failure on our side, but the customer will still have one single network switch.

I'm pretty sure we can't do LACP with this style of setup - so what would people recommend to achieve redundancy here? Main thing is that the connection needs to auto-failover if a network switch fails, or if one of the uplinks fails.

I have created the attached diagram which illustrates what we are trying to do.

Can anyone please help? I'll owe a beer at the Next AusNOG meetup!

Thanks

James
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