Arista MLAG - Step by Step with Troubleshooting and Tips
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- Опубликовано: 11 июл 2024
- Short video to show you how easy it is to create Arista MLAG. Explaining why you need it with few Tips and troubleshooting steps.
Lab : Eve- NG www.eve-ng.net/
Arista vEoS : www.aristanetworks.com/en/supp... (Register for free)
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Gr8 video, looking forward to see more of Arista related videos, specially VXLAN, Thanks
Thanks Shahzad. My work is keeping me very busy but I will remember your request.
Truly enjoyed this video and the config-sanity command at the end. Only downside was the poor audio. It made watching the video very challenging until I enabled the cc feature.
Sorry, it was one of my first videos and it was long so I had to speed it up and it distorted the audio.
@@TwT101 Hey, you did a great job! Don't worry about duration as engaging topics such as these are the reason that viewers enjoy your videos.
Hi again! Hope you don’t mind me asking. I purchased a Cisco C2960 and I configured both SFP+ ports on the C2960 as LACP Po3 and trunk it. I also put one of each ports on the Arista switches as a MLAG and Po3 as trunk. Do I need to enable IP Routing on the C2960 to past two vlans? Just like the way your single Arista switch has IP routing and the new hop address. Thanks again buddy!
2960 doesn't need IP routing to pass traffic. It's layer 2 trunk. IP routing needs to be enabled on the up stream switch who does the inter vlan routing. If that's the Arista then you are good. Just to pass the traffic to Arista you don't have to enable IP routing. Make sure you have a valid default gateway configured.
Tutorials & Tips I figured out why the Asrita and Cisco switch couldn’t ping each other (even know lldp could detect each other). I put the Aristas’s physical interface as trunk when the interface Port Channel was on trunk too. After I removed the trunk from the physical interface, it worked. Forgive my ignorance, why did the standalone Arista switch from your video had IP Routing enable? Thanks again
Good stuff! Question. I have two Aristas in a MLAG mode and I have a Synology NAS, that has the ability to link aggregate for higher throughput. How would I connect and setup it in the Aristas? Do I connect on Ethernet cable on Arista01 and another on Arista02 switch and port channel or connect both Ethernet cables from the NAS to the same switch and port channel it on a single Arista (but this defeats the purpose if switch zero fails). Thanks!
Yes. Think of 2 Arista switches as one logical switch. Create an MLAG port-channel .
Paste the below config on Switch1 and Switch2
interface Port-Channel69
Des Uplink to NAS-PortX
switchport trunk native vlan 999 (This is optional.)
switchport mode trunk
mlag 69
!
interface Ethernet53
switchport trunk native vlan 999
switchport mode trunk
channel-group 69 mode active
This will create MLAG port-channel 69 with Switch1 member port Eth53 and switch 2 member port 53. Take the connection port Eth53 from both switch1 and switch2 to your NAS.
Hope this help. Please don't forget to hit the subscribe and the like button.
Thank you very much! I just did!
Question. The vlan I need this NAS to be is on vlan 4 so No need to create the port-channel as a truck on both switch, correct? Just “switchport access vlan 4” in the port-channel XX.
The same on the physical interface, access vlan 4.
The arista isn’t using vrrp, it’s using a “ip virtual-router”.
@@freddycalderon9092 you can configure the Port-channels with access vlan 4. I am hoping vlan 4 svi is on Arista switch 1 and switch2 . You can email me Arista vlan4 config administrator@tutorialswithtips.com
Tutorials & Tips will do, thank you!
Hi.. Thanks for this video, its a life saver, thanks for the effort...Btw I have a question here...Lets say if I have more than one access switches ( like Extreme , Dell etc.) how would I configure lab to achieve the same functions (especially spanning tree config ). Also I have a FortiGate Firewall which is connected to single internet line and I have two ports of the firewall connected to the two core switches in the upstream , then how would I configure them as well. Can you please advise and if possible can you do it as full lab on eve-ng , it would be much appreciated. Thanks in advance..
Hi Manoj, you can do a mlag with your firewall and connect them to both core switches. Allow the transit vlan and create SVI on each core for that vlan and an L3 interface on your FW. The default route to that IP will take care of the rest. There are other ways like VARP in Arista that makes both the cores active in transferring upstream data. Email me your contact we can talk.
it seems LACP has bug in Arista on EVE-NG.
I tried LACP mode active won't work.
it must be LACP mode on then it would work.
how do you deal with this bug?
Create a separate vswitch and put your lacp ports in a port group on that vswitch. As far as bug, please do a bug lookup and it should have a work around. It's been a while I have used eve. I have fully went for esxi based lab simulating multi-site enterprise network with wlan, SDWan and soon to add Aos-cx vsx in that mix. Check out my lab videos to see if that helps.
@@TwT101 >Create a separate vswitch and put your lacp ports in a port group on that vswitch.
Thoses words are hard to understand for me.
Thus I go back to review this video again and watch how you create LACP and follow your steps:
1. Create port-channel 1
2. Put int eth3,eth1 in Channel-group 1
but I still can't establish LACP mode active.
is there something I miss?
Can you help us with how to install arista devices on eveng?
pls
m.ruclips.net/video/5Hig67jeoY0/видео.html is a good example. Mine was setup by our lab creator but if I have to do it I will just use step by step guide like this one.
My issue is below everything else seems to be configured right.
show mlag interfaces
No MLAG ports configured
Your Mlag Port-channels up ?
Yup, my situation I’m only doing a core 1 and 2 no other device but I realized I think I don’t have any mlag ports configured because I don’t have that third device like you do let me know
@@black_heart_gaming583 you don't need a 3rd device to create an Mlag. You need 2 devices to create Mlag. Core1 and Core 2 needs to be interconnected on Mlag Port-channel. Send me your config administrator@tutorialswithtips.com
How many your computer RAM?
My Laptop has 12 gig, Lab is based on Eve-NG, It is installed on Cisco UC. Each Arista VM has 4 gigs of RAM. Hope this answers your question.
thanks for your informations @@TwT101
why did you put music in this video
Lots of background humming noise from servers. To hide that, I thought music would be nice. Again it's just the aesthetic, that shouldn't affect learning the concept. If you have questions please let me know.