Hi Community!
we have 2x C9500-48Y4C directly connected with QSFP 100G LR4.
One of the C9500 is running IOS-XE 16.9.1 (Hostname: B-02) and the other 17.3.3 (Hostname B-01).
AOC Cables working perfeclty.
The links between the devices won't come up since the upgrade of one Device to 17.3.3
But I don't want to upgrade the 2nd until I am sure the first is running OK.
B-01#show int hu1/0/49
HundredGigE1/0/49 is down, line protocol is down (notconnect)
Hardware is Hundred Gigabit Ethernet, address is a0b4.39cd.8491 (bia a0b4.39cd.8491)
Description: "Link to B-02"
MTU 9100 bytes, BW 100000000 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, 100Gb/s, link type is force-up, media type is QSFP 100G LR4
B-02#show int hu1/0/49
HundredGigE1/0/49 is down, line protocol is down (notconnect)
Hardware is Hundred Gigabit Ethernet, address is a0b4.39cd.8351 (bia a0b4.39cd.8351)
Description: "Link to B-01"
MTU 9100 bytes, BW 100000000 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, 100Gb/s, link type is force-up, media type is QSFP 100G LR4
Fec is auto
First I saw that link type is forced-up on 17.3.3 --> configured "speed nonegotiate" on 16.9.1
Then tried to play around with fec --> auto/cl91.
"show interface hu1/0/49 transceiver detail" looks also perfectly fine.
B-01#show int hu1/0/49 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 42.9 75.0 70.0 0.0 -5.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 3.24 3.63 3.46 3.13 2.97
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port Lane (milliamperes) (mA) (mA) (mA) (mA)
--------- ---- --------------- ---------- --------- --------- ---------
Hu1/0/49 1 37.9 55.0 50.0 30.0 25.0
Hu1/0/49 2 37.7 55.0 50.0 30.0 25.0
Hu1/0/49 3 38.0 55.0 50.0 30.0 25.0
Hu1/0/49 4 37.6 55.0 50.0 30.0 25.0
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port Lane (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ---- --------------- ---------- --------- --------- ---------
Hu1/0/49 1 2.4 7.5 4.5 -4.3 -8.3
Hu1/0/49 2 2.4 7.5 4.5 -4.3 -8.3
Hu1/0/49 3 2.1 7.5 4.5 -4.3 -8.3
Hu1/0/49 4 2.4 7.5 4.5 -4.3 -8.3
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port Lane (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ---- --------------- ---------- --------- --------- ---------
Hu1/0/49 1 -2.1 7.5 4.5 -10.6 -14.6
Hu1/0/49 2 -2.5 7.5 4.5 -10.6 -14.6
Hu1/0/49 3 -2.6 7.5 4.5 -10.6 -14.6
Hu1/0/49 4 -1.7 7.5 4.5 -10.6 -14.6B-02#show int hu1/0/49 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 42.5 75.0 70.0 0.0 -5.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 3.24 3.63 3.46 3.13 2.97
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 40.7 55.0 50.0 30.0 25.0
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 2.2 7.5 4.5 -4.3 -8.3
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ----------------- ---------- --------- --------- ---------
Hu1/0/49 -1.4 7.5 4.5 -10.6 -14.6
Had the same problem once with the QSFP 100G L4 while upgrading to 16.12.4. Cisco then writes "speed nonegotiate" in every port-channel. But this time can't solve it...
Someone may had the same problem and/or knows a solution?
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