1. D

    QoS Arista DCS-7060CX-32S-R

    Hello everyone, I have a case that I would like a little help, I have a DCS-7060CX-32S-R edge, which works spectacularly for me, but I would like to be able to limit the bandwidth per physical port and per vlan, someone has performed this action that can support me please.
  2. R

    Arista DCS-7048T-A Fan Modifications

    I recently acquired an Arista DCS-7048T-A for free and it's a great switch, but it sounds like a jet engine, even during idle and on 30% fan override (with temps within 20c of the warning threshold). I looked into replacing the fans with quieter models and came across this Reddit thread...
  3. L

    Mellanox ConnectX-4s Not Working

    So I've spent many hours on this completely unnecessary home network upgrade from 40 gigabit to 100 gigabit and it has been a very frustrating journey. I recently acquired a Celestica DX010 100 gigabit switch loaded with SONiC, two Mellanox ConnectX-4s (Exact model for both appears to be...
  4. E

    Arista DCS-7050SX-64 won't start

    Hi, A days ago I received Switch Arista DCS-7050SX-64. This device is second-hand from eBay. The seller tells me your team has tested the devices and shares a report with evidence. When putting power cable, device power-on but freeze for a long time, after will start to infinite loop restart...
  5. M

    Chelsio T420-BT and Arista DCS-7050T-64-F

    Hi, I have a strange trouble on my home lab. I have two Chelsio T420-BT on a Windows 2019 connected to two Arista DCS-7050T-64-F. The link is up for a few minutes and after the link came down. On windows, I have "Network cable unplugged". The link is up and stable if I set the speed of the port...
  6. Y

    Accton/Edgecore/White Box vs Arista & other branded switches?

    Anyone here have any thoughts on Accton / Edgecore switches versus Arista or other more branded switches? Seeing that the hyperscalers (FB, AMZN) are using a lot of cheaper switches, but like we've seen elsewhere, these cheaper switches are actually moving up in terms of value and...
  7. M

    Port Flapping with Aristia Switch and Mellanox Connectx 3 Pro

    I have two Aristia 7150S-R that are mlagged together and I have all my servers using bonds across the mlagged switches. Four of my servers are experiencing random port flaps on then 10G. If I reboot the server it will stay up for 5-7 days and then start doing it again. Switch OS 4.18 Server OS...
  8. H

    48+ ports 10gb switch with some 40gbps ports recommendation

    Hi All, I am looking to get 2 high density 10GB switches to replace my brocade VDX 6720 the vdx 6720 is fine but the 2 I have have 2 limitations that make them not that usefull 1- I have only 16 ports licensed 2- to connect both switches I dont have qsfp port so I am using 4 out of the 16...
  9. N

    Arista not applying DCBX application priorities - Not syncing DCBX to Windows Server with ConnectX-4

    Hi, Simple LAB test of RoCE with Arista 7150 not working as expected. When querying DCBX status from Arista is says no "0 application priorities configured". See below for config applied. Goal is to sync DCBX to windows servers, but it only sync the traffic class, not the port/application...
  10. N

    Arista 7150S Fan mod

    Hey everyone, I'm trying to quiet my Arista 7150S down a bit with some Noctua NF-A4x20 PWM fans. The problem I'm having is the switch is throwing the error below. Any ideas on how/if this can be reconfigured? arista>May 6 19:11:57 arista Thermostat: %ENVMON-3-FAN_SPEED_TOO_SLOW: The speed...
  11. I

    Looking for Arista firmware

    I have some Arista DCS-7050S switches I'm trying to find a working EOS image for. Edit : Never mind, it looks like our siwtches already have the latest firmware ;)
  12. P

    Solved: Arista 7050s 802.1x // Firmware

    Hi We have a DCS-7050S-64 in our lab. It had a pretty old EOS installed (4.12). This image did not support any 802.1X configurations. As there is no support on this switch, I searched and found a newer firmware one on a ftp server (4.17.7M). I could configure 802.1X PBAC with this firmware...
  13. I

    Arista DCS-7050Q-16 transceiver compatibility

    Hi, Just bought an Arista DCS-7050Q-16 switch on ebay and wanted to know if anyone has one of this working with Brocade 10GbE SFP+ transceivers (PN: 57-0000075-01)? Also can anyone recomend 1M long compatible QSFP+ cables to work with Mellanox MCX354A-FCBT cards?
  14. N

    Emerson Power Supply vs. Arista Emerson Power Supply

    Hi, Would anyone know the difference between a normal 460W Emerson power supply, and the Emerson power supply that is sold only for Arista switches? Ordered some over e-bay and it turned out they were not recognized by the Arista switch. The switch powered up, but had some issues recognizing...
  15. S

    QSFP+ to QSFP+ link/connection (4x10G vs 40Gfull)

    What's the functional difference? The reason I ask is because I have an Arista 7050QX-32-S (24x QSFP+ 4x10G-capable-ports and 8 QSFP+ 40G-only-ports) and recently I picked up some Arista 40G-UNIV transceivers expecting, perhaps niavely, for them to functionally be an SMF/MMF compatable version...
  16. S

    Arista QSFP28 100G AOC, 10M, $96.75 from unixpluscom

    I was on ebay searching for cheap QSFP+ AOC's for my Arista 7050QX-32-S and I stumbled across this unixpluscom listing for an Arista compatible AOC-Q-Q-100G-10 for $96.75: NEW Arista 100G QSFP28 10-Meter Active Optical Cable AOC-Q-Q-100G-10M | eBay This AOC cable is $510 on Arista...
  17. L

    Upgrade Flash Storage on Arista 7050QX-32

    According to official spec, Arista 7050QX-32 has 4GB RAM and up to 4GB flash storage. In the market most of the switches have 2GB flash storage. Unfortunately the one I got has only 1GB flash storage. When I called Arista support, they told me I could not upgrade the storage module by myself and...
  18. T

    DAC Question: Mellanox MCX314A-BCBT <-> Arista 7050QX-32

    Searched through the forums and can't find a definitive answer regarding a DAC for this setup. Hoping someone has first hand experience. If a gun was to my head I would buy this: Arista Networks CAB-Q-Q-1M 40G QSFP+ DAC Cable | FS.COM Just looking to make sure I get something that works...
  19. L

    Firmware for Arista 7124S/7148S

    I'm looking for firmware newer than EOS-4.13.10M in 14.13 branch. If anyone have it, please post it here.
  20. J

    Arista 7050 basic switching

    I got a great deal on a used 7050 that I am trying get working with my setup. I have followed the initial setup guide to get the management interface working. I have two servers both with ESXI 6.5, a Connect X3 and uplinked to a vswitch on each server and both nics connected to the switch (port...