09-02-2022 03:57 AM
Hi,
I have a switch C9500-16X and want to downgrade 40G port to 10G port. I have installed cvr-qsfp-sfp10g in 40G port of switch and SFP-10G-SR-S in cvr-qsfp-sfp10g. Following is the output of "show idprom interface fo2/1/1"
Switch#show idprom interface fo2/1/1
General SFP Information
-----------------------------------------------
Identifier : QSFP+
Ext.Identifier : Unknown
Connector : MPO Parallel Optic
Transceiver
10/40GE Comp code : 40G Base-SR4
SONET Comp code : Unknown
GE Comp code : Unknown
Link length : Unknown
Technology : Unknown
Media : Single Mode
Speed : Unknown
Encoding : NRZ
BR_Nominal : 10300 Mbps
Length(9um)-km : GBIC does not support single mode fibre
Length(9um) : GBIC does not support single mode fibre
Length(50um) : 100 m
Length(62.5um) : 30 m
Length(Copper) : GBIC does not support 50 micron multi mode OM4 fibre
Vendor Name : OEM
Vendor Part Number : CVR-QSFP-SFP10G
Vendor Revision : 0x31 0x41 0x42 0x68
Vendor Serial Number : DTY255204T1
Wavelength : 2000.70 nm
CC_BASE : 0xA4
-----------------------------------------------
Is there any special commands for SFP-10G-SR-S to install in cvr-qsfp-sfp?
BR
Abdul Karim
09-02-2022 04:13 AM
No you do not need any special config ? what is the issue ?
09-04-2022 11:53 AM
Thank you so much.
Link is not coming up. SFP-10G-SR-S inserted in CVR-QSFP-SFP10G.
09-05-2022 03:06 AM
Link not coming up other possible issues.
1. check the patch cable ? what cable you using ?
2. are you able to see SFP recognised show interface x/x trans
3. what SFP other side ?
4. can you post bot the side configuration and show run interface x/x and show interface x/x
09-05-2022 06:32 AM
At both ends SFPs are same "SFP-10G-SR-S".
We have tested the different cables.
is there any command for the the interface having SFP-10G-SR-S and CVR-QSFP-SFP10G?
Switch#show run interface fortyGigabitEthernet 1/1/1
Building configuration...
Current configuration : 43 bytes
!
interface FortyGigabitEthernet1/1/1
end
Switch#sh interfaces fortyGigabitEthernet 1/1/1
FortyGigabitEthernet1/1/1 is down, line protocol is down (notconnect)
Hardware is Forty Gigabit Ethernet, address is c0f8.7fbb.9d19 (bia c0f8.7fbb.9d19)
MTU 1500 bytes, BW 40000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 40Gb/s, link type is auto, media type is unknown
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
Output 0 broadcasts (0 multicasts)
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped ou
Switch#show run interface fortyGigabitEthernet 1/1/1
Building configuration...
Current configuration : 43 bytes
!
interface FortyGigabitEthernet1/1/1
end
Switch#sh interfaces fortyGigabitEthernet 1/1/1
FortyGigabitEthernet1/1/1 is down, line protocol is down (notconnect)
Hardware is Forty Gigabit Ethernet, address is c0f8.7fbb.9d19 (bia c0f8.7fbb.9d19)
MTU 1500 bytes, BW 40000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 40Gb/s, link type is auto, media type is unknown
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
Output 0 broadcasts (0 multicasts)
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
09-05-2022 07:11 AM
Full-duplex, 40Gb/s, link type is auto, media type is unknown
shows as unknow, until you see as SFP, you will be not able to use that port.
as i remember 17.3.5 has fixed this issue, i am sure i tested on these ports.
May be @Leo Laohoo suggested some bug, worth looking also remove and default the interface and re-insert and test it.
09-04-2022 05:14 AM
What firmware is the 9500 running on?
09-04-2022 11:56 AM
Thank You so much.
cat9k_iosxe.17.06.03.SPA.binis the IOS version. Actually link is not coming up. Is there any configuration to get the link up.
BR
Abdul Karim
09-05-2022 03:16 AM
CSCvj67503, CSCvn60882
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