05-23-2023 01:47 PM
I have (2) cisco 9500-24Y4C switches and I am looking to get advise on which ports I should use. I want to create a virtual stack. From what I have read so far, it seems best practice would be to use 3 ports per switch. (2) ports for the SVL link and (1) port for the Dual Activation Detection Link. This switch has 4 fixed 40gig/100gig ports. My question is should I use those ports? I read that the SVL ports do not use much traffic if both switches are connected to the core switches. So basically would like to get feed back on how or what ports to use?
Thanks.
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05-23-2023 02:39 PM
I prefer using 2x40' using port channel in case one link down.
And for DAD use one 40 link ( DAD not support PO)
05-23-2023 02:02 PM - edited 05-23-2023 02:04 PM
this lab help you
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/5eU6DfQV/LTRCRS-2090-LG.pdf
4x25G and 4x10G breakout cables are not supported with SVL mode.
On C9500-32C switches, you can configure SVL and DAD only on interfaces numbered 1-16 on the front panel of the switch.
On C9500-32QC, you can configure SVL and DAD only on native 100G and 40G interfaces (default configuration ports). You cannot configure SVL and DAD on converted 100G and 40G interfaces.
On Cisco Catalyst 9500 Series High Performance Switches, configuring SVL using 1G interfaces is not supported.
05-23-2023 02:14 PM
From what I have read all my ports can be used on these switches.
You can establish SVLs using 40G or 10G Ethernet connections (downlink connections) on Cisco Catalyst 9500 Series Switches and 100G, 40G, 25G and 10G Ethernet connections on Cisco Catalyst 9500 Series High Performance Switches.
05-23-2023 02:18 PM
Share this doc. Let me take look
05-23-2023 02:18 PM
I guess what I am asking is using 100Gig overkill for an SVL or is it Ideal?
05-23-2023 02:39 PM
I prefer using 2x40' using port channel in case one link down.
And for DAD use one 40 link ( DAD not support PO)
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