08-07-2024 07:57 AM
Hi All, I am looking at these QDDs and I was wondering If these are limited to CISCO host or if they are compatible with any CMIS-complaint router. Same question I have for the Acacia/CISCO DP04QSDD-E20-190. TIA
08-07-2024 08:52 AM
The Cisco 400G QSFP-DD coherent optics data sheet claims multi-vendor interoperability:
"Extensive system-level testing and unmatched technical expertise enable Cisco optics to be successfully used across Cisco as well as multivendor platforms."
AFAIK, DP04QSDD-E20-190 is the internal Cisco-Acacia part number for the generic Cisco part number QDD-400G-ZRP-S, which is covered by the above data sheet:
Transceiver Vendor Details Form Factor : QSFP-DD Optics type : QSFP-DD 400G-ZRP-S Name : CISCO-ACACIA OUI Number : 7c.b2.5c Part Number : DP04QSDD-E30-19E Rev Number : 01 Serial Number : ACA2503003X PID : QDD-400G-ZRP-S VID : ES03 Firmware Version : 61.20 (Build : 13) Date Code(yy/mm/dd) : 21/01/22
The caveat here is that Cisco will not likely have tested these parts in your non-Cisco router with your NOS version. Cisco wants to be a 3rd-party optics vendor and provides TAC support to customers who buy Cisco optics for insertion into non-Cisco gear. TAC will troubleshoot with you and engage the Cisco TMG (Transceiver Module Group) to determine root-cause if there is an interop issue. The TMG engineers are quite sharp and experienced with interoperability.
08-07-2024 09:03 AM
So are these DP04QSDD-E20-190 equivalent to the QDD-400G-ZRP-S but only difference is the range? So I could expect either one to work with other none cisco routers like Junipers PTXs?
08-07-2024 01:45 PM
I would not expect the complexity of a configurable (DAC rate, FEC, frequency, chromatic dispersion, transmit power) 400G coherent optic to be plug & play in a host platform in which it has not been tested before. I would expect that TAC will troubleshoot with you to arrive at root cause if there is an issue.
I would also recommend that you engage in a qualification process before committing to any large purchase. Check with your Cisco account team (or Cisco-authorized reseller team) to:
Once you have the demo samples of the optics in-hand, thoroughly test them in your target platforms and open a Cisco TAC case if there are issues. If there are issues, Cisco's root cause analysis may indicate that changes are required to JUNOS. If that turns out to be the case, you would have to work with Juniper to get them to agree with the RCA and for them to commit the required changes into JUNOS.
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