Hi Chris, We have an MX204 on order and plan to test 1G SFPs of both media types (latter half of this month). Sad to see the release notes don't specify which 1G SFPs are supported. Even more sad to see that 1G ports retain their xe- naming rather than changing to ge- as you would hope and expect.
That's sure going to confuse some folks at some point, having to run additional commands to verify the actual running speed. *sigh* I've set a reminder to check in on this thread again once we've done our testing. Meanwhile all I can think to ask you is, which copper SFP you're using? If official JNPR, then there's a single-rate SFP-T (1Gbps) and a tri-rate (10/100/1000Mbps) SFP-T. Which have you tried, or have you tried both? 740-038291 SFP-T Single-rate 740-013111 SFP-T Tri-rate How you can check: # # Find SFP-Ts FPC and PIC numbers, work out interface names. # For your case on MX204, stupidly, they'll be xe- ports but in my example I have ge- ports on MX960. # @mx1.ams.nl.re0> show chassis hardware | match "FPC 0|PIC 3|SFP-T" FPC 0 REV 25 750-031089 ------- MPC Type 2 3D PIC 3 BUILTIN BUILTIN 10x 1GE(LAN) SFP Xcvr 0 REV 01 740-038291 ------- SFP-T Xcvr 1 REV 02 740-013111 ------- SFP-T # # I've got one of each type in FPC0, great! I have ge-0/3/0 and ge-0/3/1. # How to tell which part number is which speed? # start shell pfe network fpc0 # Look for interface name to find index number - in my case, ge-0/3/0 and ge-0/3/1 => index 11 and 12 show sfp list # Show detail for SFP 11 and SFP 12 show sfp 11 show sfp 12 # # Results - beware both will list 10/100/1000Base-T SFP in the xcvr codes, look further below to 'SFP Type' # ge-0/3/0 housing a 740-038291 SFP-T SFP ID eeprom data: Cable Type: 11 (SFP-T) SFP xcvr codes: 10/100/1000Base-T SFP PNO: 740-038291 <...> SFP Type: 1000BASE-T Copper SFP <...> ge-0/3/1 housing a 740-013111 SFP-T SFP ID eeprom data: Cable Type: 11 (SFP-T) SFP xcvr codes: 10/100/1000Base-T SFP PNO: 740-013111 <...> SFP Type: Tri Rate Copper SFP <...> Br, Niall Br, Niall -----Original Message----- From: juniper-nsp [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Chris Adams Sent: 04 April 2018 18:00 To: juniper-nsp@puck.nether.net Subject: [j-nsp] MX204 and copper SFP? Has anyone tried a copper SFP in an MX204? With 18.1R1, the ports can be set to 1G mode, and I can use a fiber SFP, but a copper SFP doesn't work for me. The router sees it, but the port shows "up" (even with no wire connected), and it won't actually pass any traffic when connected (both ends see transmits but 0 receives). -- Chris Adams <c...@cmadams.net> _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
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