Cisco IOS XE Software, Version 16.11.01
Switch#show interfaces twentyFiveGigE 1/0/29
TwentyFiveGigE1/0/29 is down, line protocol is down (notconnect)
Hardware is Twenty Five Gigabit Ethernet, address is cc7f.76a4.34bc (bia cc7f.76a4.34bc)
Description: TO_Xier-HJ-SW-F3-1_link
MTU 1500 bytes, BW 25000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, link type is auto, media type is unknown
Fec is auto
Switch#show interfaces twentyFiveGigE 2/0/29 capabilities
TwentyFiveGigE2/0/29
Model: C9500-48Y4C
Type: unknown
Speed: 1000,10000,25000
Duplex: full
FEC: auto/off/cl74/cl108
Trunk encap. type: 802.1Q
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Unicast suppression: percentage(0-100)
Multicast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(off,on,desired)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),
tx-(2p6q3t)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: no
SPAN: source/destination
PortSecure: yes
Dot1x: yes
Diagnostic Monitoring: N/A
Breakout Support: not applicable
Using these SFP's on the C1000 is fine, but not when the C9500 and C1000 are interconnecting because the C9500 is not recognized. I can't confirm if it's my configuration or the device or module. Meanwhile, other interfaces on the C9500 have used the same module, but no problems.
