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About timbaker
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For anyone out there interested in this topic, I got the following from Meraki support: "Both SFP and QSFP ports can be used simultaneously for different purposes." and "The ports themselves are independent of each other and using one type does not disable the other type."
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Does anyone out there have a definitive answer to this? @Phi-L, is this info something you can source internally with Meraki? (I'm working on a fibre upgrade project with 50+ Meraki switches and need to know how many QSFP/SFP ports are actually useable) Thanks...
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@Phi-L Thanks for this. However, you said it "should" work whereas I really need to know whether it will or not... Are you able to provide a definitive answer from Meraki? ie: is it a viable and supported configuration to use all QSFP and SFP ports simultaneously on an MS355?
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Nice work, @cmr - that is interesting indeed. Has anyone out there put this to the test? Or can someone from Meraki provide clarification? Thanks
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Thanks @cmr - that is encouraging... Has anyone out there used SFP and QSFP simultaneously on an MS355? Or can a Meraki rep confirm the meaning of the statement in doco?
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Hello Meraki Community, According to specs listed here: https://meraki.cisco.com/product/switches/stackable-access-switches/ms355-24x/ ...the MS355 can use 2 × 40G OR 4 × 10G fiber uplinks. Does this really mean that it is not possible to use the QSFP and SFP ports simultaneously? Thanks! Tim.
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Jan 20 2021
3:30 PM
The 1 and 10 Gb uplinks provide diverse physical paths, hence the preference for including the 1's (preferably aggregated). Thanks for the quick response.
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Jan 19 2021
10:49 PM
Hello experts, I'm trying to work out how QSFP ports can be used in Meraki MS355 switches and can't find much about it in the documentation. More specifically: 1) Does the MS355 support "octopus" 4 x LC to 1 x QSFP+ breakout cables? 2) If I connect 4 x 1Gbps to a QSFP+ port, will the MS355 see this as 1 x 4Gbps or 4 x 1Gbps interfaces? (If 4x1 can I use LACP?) 3) Can I connect, say, 3 x 1Gbps to a QSFP+ port? Or must all 4 channels be used? 4) If I have multiple links going into a QSFP port via octopus cable and one link goes down, what happens at the switch interface? For context... I have 10Gbps uplink and want to aggregate 1Gbps links to provide a redundant uplink > 1Gbps. But in several cases I only have 6 fibre cores (ie: 3 x 1Gbps) and in other cases if I use SFP ports and LACP I'll run out of SFP ports. Hence the questions above... Can anyone help shed some light on this? Thanks!
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