Juniper's official Hardware Compatibility Guide lists 100G DACs as officially supported on MX10003, so "no DACs" being officially supported is not true. https://apps.juniper.net/hct/product/#prd=MX10003
We have used DAC cables (10G, 40G, & 40G -> 4x10G) with MX204s up to 18.4R3. I have also labbed up 40G DACs with EX4300s (for VC and uplink to MX) with no issues. -- ______________________ David Miller [email protected] On Fri, Jun 12, 2020 at 2:41 PM Chris Adams <[email protected]> wrote: > > Is anybody using DAC cables on MX routers? We have a customer with an > MX10003 connected to EX4600 switches with 40G DAC cables (Juniper parts, > not third-party). Upon upgrading the router JUNOS to 18.2R3-S3, none of > the interfaces with a DAC cable would come up on the router end. > > JTAC's response was that no DAC cables are supported on any MX routers. > > That seems a little odd to me... I thought DAC cables are a part of the > various specs, so saying they're not supported is saying those aren't > actually Ethernet ports to me. > > -- > Chris Adams <[email protected]> > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
