Starting a quick thread on the Arista DCS-7050QX-32 which is a 32 port 40GbE switch.
Useful Links
Port Configuration
24 of the 32 ports can be used with breakout cables to each become 4x 10GbE ports. In theory you could have 96x 10GbE ports from the switch. I did confirm using a Nebula branded QSFP+ to 4x SFP+ cable that this indeed works.
Setup Notes
EOS came on the switch with Zero Touch Provisioning setup. I followed the manual to setup a new admin password, exit ZTP and configure the management interface.
Update here is to user interface management 1 which is correct in the Quick Start guide above.
Airflow differences
Red handles on the fans/ PSUs = front-to-rear airflow (-F in model)
Blue handles on the fans/ PSUs = rear-to-front airflow (-R in model)
DCS-7050QX-32 v. DCS-7050QX-32S
The DCS-7050QX-32S has four additional SFP+ 10GbE ports and a quad core x86 processor (the -32 is a dual core x86 CPU.)
Switch Chip
These are both end of life and Broadcom Trident II based switches (Trident II is still widely used.)
Power Consumption
Power consumption claims 5W per QSFP+ port. With three QSFP+ ports active using DACs and a fourth using a breakout cable power on a single power supply is 112W-114W once it booted which is very good.
Although these are lower power per 10GbE port than the 16 port 10GbE switches like the Ubiquiti ES-16-XG, they still use over 100W and are loud data center products.
QSFP+ Compatibility
On QSFP+ DACs - I can confirm my Mellanox DACs are working on the QSFP+ ports as well as the Nebula branded breakout cable.
Current Pricing (Used)
The DCS-7050QX-32S sells for around $2300 as the low price on ebay, but most are $4000 or more
The DCS-7050QX-32 sells for $1200-$1400
Given this, the DCS-7050QX-32 is the better $/ port value.
Useful Links
- Link to Arista Datasheet
- Link to Arista Quick Start Guide
- Link to Arista Configuration Guide
Port Configuration
24 of the 32 ports can be used with breakout cables to each become 4x 10GbE ports. In theory you could have 96x 10GbE ports from the switch. I did confirm using a Nebula branded QSFP+ to 4x SFP+ cable that this indeed works.
Setup Notes
EOS came on the switch with Zero Touch Provisioning setup. I followed the manual to setup a new admin password, exit ZTP and configure the management interface.
Update here is to user interface management 1 which is correct in the Quick Start guide above.
Airflow differences
Red handles on the fans/ PSUs = front-to-rear airflow (-F in model)
Blue handles on the fans/ PSUs = rear-to-front airflow (-R in model)
DCS-7050QX-32 v. DCS-7050QX-32S
The DCS-7050QX-32S has four additional SFP+ 10GbE ports and a quad core x86 processor (the -32 is a dual core x86 CPU.)
Switch Chip
These are both end of life and Broadcom Trident II based switches (Trident II is still widely used.)
Power Consumption
Power consumption claims 5W per QSFP+ port. With three QSFP+ ports active using DACs and a fourth using a breakout cable power on a single power supply is 112W-114W once it booted which is very good.
Although these are lower power per 10GbE port than the 16 port 10GbE switches like the Ubiquiti ES-16-XG, they still use over 100W and are loud data center products.
QSFP+ Compatibility
On QSFP+ DACs - I can confirm my Mellanox DACs are working on the QSFP+ ports as well as the Nebula branded breakout cable.
Current Pricing (Used)
The DCS-7050QX-32S sells for around $2300 as the low price on ebay, but most are $4000 or more
The DCS-7050QX-32 sells for $1200-$1400
Given this, the DCS-7050QX-32 is the better $/ port value.
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