Check 10Gb Interfaces On An ASA

I recently had to deploy and ASA pair. One of the pre-requisites is to make sure there’s an optic in the interface we’re going to use. On a switch you have the following options:

#show int te5/4 transceiver
Transceiver monitoring is disabled for all interfaces.

ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
If device is externally calibrated, only calibrated values are printed.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).

Optical Optical
Temperature Voltage Current Tx Power Rx Power
Port (Celsius) (Volts) (mA) (dBm) (dBm)
---------- ----------- ------- -------- -------- --------
Te5/4 27.0 0.00 7.6 -- -2.2 -2.7


#show int tenGigabitEthernet 5/4 capabilities
Model: VS-S720-10G
Type: 10Gbase-SR
Speed: 10000
Duplex: full
Trunk encap. type: 802.1Q,ISL
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on),tx-(off,on)
Membership: static
Fast Start: yes
QOS scheduling: rx-(8q4t), tx-(1p7q4t)
QOS queueing mode: rx-(cos,dscp), tx-(cos,dscp)
CoS rewrite: yes
ToS rewrite: yes
Inline power: no
Inline power policing: no
SPAN: source/destination
UDLD yes
Link Debounce: yes
Link Debounce Time: yes
Ports-in-ASIC (Sub-port ASIC) : 1-5 (3-4)
Remote switch uplink: no
Dot1x: yes
Port-Security: yes


#show inventory "Transceiver Te6/4"
NAME: "Transceiver Te6/4", DESCR: "X2 Transceiver 10Gbase-SR Te6/4"
PID: X2-10GB-SR , VID: V05 , SN: FNS14501PP3

Unfortunately, on an ASA, there is no way to check if a transceiver is present. You can use your CCO account to submit a feature request though.

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