Diference SG550XG-24F and SX550X-24F

[Nolaan]

Hello,

I found on the cisco.com website a new series of switches: SX350X / SX550X

I can not find the specifications of these models.

Does anyone know anything more about these models?

In the release notes I found only that the SG550XG-24F and SX550X-24F have 10Gbit ports

[Seb Rupik]

Hi there,

Please see below, click the 'view all' link on both pages:

https://www.cisco.com/c/en/us/support/switches/350x-series-stackable-managed-switches/tsd-products-support-series-home.html

https://www.cisco.com/c/en/us/support/switches/550x-series-stackable-managed-switches/tsd-products-support-series-home.html

cheers,

Seb.

[Nolaan]

Thank you for your response.

In that place I found only information that these switches exist (SX350X/SX550X)

I can not find the specifications of these models.
Switching Capacity
Any Information about IPv4 routing (RIP / OSPF?)
Maybe something about MPLS / VPLS? ;)

[Seb Rupik]

Hello again,

Once you click on the link for the switch model, on the next page follow the links for 'data sheets', ie:

https://www.cisco.com/c/en/us/products/collateral/switches/550x-series-stackable-managed-switches/datasheet-c78-735874.html

...these will give you the specifications for the switches.

cheers,

Seb.

[Nolaan]

Thank you for your response.

In that place I found only information that these switches exist (SX350X/SX550X)

I can not find the specifications of these models.
Switching Capacity
Any Information about IPv4 routing (RIP / OSPF?)
Maybe something about MPLS / VPLS? ;)

[lukaslaz83]

From what I have found manually in the datasheet, because in comparisson tool these swithes are not...:

SG550XG-24F

• sw capacity 357 mpps 480 gbps
• power, heat 77.5W 264.44BTU/hr
• ports 22SFP+ 2combo 10GE/SFP+
• packet buffer 2MB
• weight 4.16kg
• Fans, MTBF 4+1 642449hrs

SX550X-24FT

• sw capacity 240 mpps 480 gbps
• power, heat 55.5W 189.37BTU/hr
• ports 20SFP+ 4combo 10GE/SFP+
• packet buffer 3MB
• weight 4.7kg
• Fans, MTBF 3+1 433149hrs

And SX switch has 1.3GHz CPU instead of 800MHz.

In general, if I'm right, in SX550X, for twice the price (4600USD vs 2200USD) you get

• (+) 2 more combo ports instead of 2 just SFP+ and bigger Packet buffer, less power consumption and more heat dissipation
• (-) less switching capacity, lower MTBF

?

[asg2ki]

Hi,

I was also looking into the very same question so I started digging a bit on this topic. Besides what you already found and mentioned from the products datasheets I also noticed that as per the Cisco EOL notifications the SX550X-24F is a direct replacement model for the SG500XG-24F therefore it doesn't really make sense to look into the SG500XG-24F switch any longer. The SG500XG-24F type has been made available in 2015 while the SX500X-24F is from 2018.

https://www.cisco.com/c/en/us/products/collateral/switches/350x-series-stackable-managed-switches/eos-eol-notice-c51-743290.pdf

Also I believe the switching capacity outlined in the SX500X-24F datasheet contains typo. It definitely doesn't make any sense to have 240 Mpps on the new model when the old one had 357.12 Mpps on it, so this must be a mistake made by Cisco.  Furthermore I looked also into the SG350XG-24F and SX500X-24F datasheets and both of them are specified as having 357.12 Mpps. As for the lower MTBF, well... this puzzles me too but I suppose it might be due to the newer CPU. Not sure how Cisco has calculated these values but in any case these switches seems to be decent enough for large workloads and based on their datasheets and feature sets would be much better compared to the cheap 10Gb switches that can be found on the market today.

Myself I would probably buy the SX500X-24F type for my own home lab.