I wanted to say thank you to all of those who have offered us (both on- and offlist as well) help and support for this arista move. It feels good to know that with it, we are on a path that many here are walking on. Lastly, if I may, one more question: My arista seller tells me that the arista 7050QX-32S supports 10G fiber uplinks, but I need 10G UTP RJ45 uplink to our HP core switch. (our HP has 1G fibers, and a 8 * 10G UTP RJ45 linecard. They tell me that the 7050QX-32S can do UTP RJ45, but only 1G speed, and not 10G. :-( Is that something that the (many) arista experts here can confirm or deny..? (other than: "You need to buy it, and then try it") Thanks! MJ On 21/02/2021 11:37, Martin Verges wrote:
Hello MJ,
Arista has a good documentation available for example at https://www.arista.com/en/um-eos/eos-multi-chassis-link-aggregation or https://eos.arista.com/mlag-basic-configuration/. Don't worry, when you know what exactly you want to configure, it's just a few lines of config in the end.
It's more or less:
On Both Switches: ------------------------- no spanning-tree vlan-id 4094 ! vlan 4094 trunk group mlag ! interface Port-Channel2000 switchport mode trunk switchport trunk group mlag ! interface Ethernet35 description MLAG link channel-group 2000 mode active ! interface Ethernet36 description MLAG link channel-group 2000 mode active !
On switch 1 in addition: ------------------------------- interface Vlan4094 ip address 10.2.0.1/30 ! mlag configuration domain-id mlag local-interface Vlan4094 peer-address 10.2.0.2 peer-link Port-Channel2000 !
On switch 2 in addition: ------------------------------- interface Vlan4094 ip address 10.2.0.2/30 ! mlag configuration domain-id mlag local-interface Vlan4094 peer-address 10.2.0.1 peer-link Port-Channel2000 !
After that you create port-channels for the ports you like to bundle with a specific mlag id
On both switches as an example: --------------------------------------------- interface Port-Channel1 switchport access vlan 101 mlag 1 ! interface Ethernet7/1 description "MLAG bonding to Server XXX" channel-group 1 mode active !
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Am Sa., 20. Feb. 2021 um 16:38 Uhr schrieb mj <lists@merit.unu.edu>:
Hi,
Just to follow-up this dialogue:
After Martin's tip for the arista's, we started looked around, and while buying from ebay did not appeal to us, we did manage to find a couple of refurb equipment resellers that offer them for a (little) bit more, but then including a year warranty.
And actually, for an extra 175 euro, I was able to upgrade warranty from one to three years.
Now I just need to get an ok from management here. And then the fun begins: start reading up on arista EOS MLAG config, en doing a lot of testing with new stuff.
Now I wonder if it's accepted to ask arista-specific (MLAG) config questions here on this list...
Have a nice weekend all!
MJ
On 2/15/21 1:41 PM, Sebastian Trojanowski wrote:
3y ago I bought it on ebay to my home lab for 750$ with transport and duty and additional tax, so it's possible
BR, Sebastian
On 15.02.2021 12:57, huxiaoyu@horebdata.cn wrote:
Just wondering from where one can buy Arista 7050QX-32S for 700 USD?
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