Cisco – Trouble Shooting errdisabled Cause

ciscocisco-catalystconfiguration

I have a Cisco Catalyst 3850. I added a network module with 4 gbic for fiber connection. The module is not showing any lights on either side of the connection. After the searching the depths of the internet I found out that when adding a network module like I did I have to enable the media-type of sfp for those interfaces. This is what I have tried.

enable

conf t

int tengigabitethernet 1/1/1

media-type sfp

it's not wanting to take this command.
is this the right way to enable media-type sfp?

Show inventory command:

flcoffice_48m_01#show inv
NAME: "c3xxx Stack", DESCR: "c3xxx Stack"
PID: WS-C3850-48T      , VID: V04  , SN: FCW1905C178

NAME: "Switch 1", DESCR: "WS-C3850-48T"
PID: WS-C3850-48T      , VID: V04  , SN: FCW1905C178

NAME: "Switch 1 - Power Supply A", DESCR: "Switch 1 - Power Supply A"
PID: PWR-C1-350WAC     , VID: V01  , SN: LIT19221FY 

NAME: "Switch 1 FRU Uplink Module 0", DESCR: "4x10G Uplink Module"
PID: C3850-NM-4-10G    , VID: V01  , SN: FOC19238XKL

NAME: "TenGigabitEthernet1/1/1", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD         , VID: V01  , SN: FNS19270TD6    

NAME: "TenGigabitEthernet1/1/2", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD         , VID: V01  , SN: FNS19270TQ0    

NAME: "TenGigabitEthernet1/1/3", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD         , VID: V01  , SN: FNS1920059J   

here is the errdisable recovery command:

flcoffice_48m_01#show errdisable recovery 
ErrDisable Reason            Timer Status
-----------------            --------------
arp-inspection               Disabled
bpduguard                    Disabled
channel-misconfig (STP)      Disabled
dhcp-rate-limit              Disabled
dtp-flap                     Disabled
gbic-invalid                 Disabled
inline-power                 Disabled
l2ptguard                    Disabled
link-flap                    Disabled
mac-limit                    Disabled
loopback                     Disabled
pagp-flap                    Disabled
port-mode-failure            Disabled
pppoe-ia-rate-limit          Disabled
psecure-violation            Disabled
security-violation           Disabled
sfp-config-mismatch          Disabled
storm-control                Disabled
udld                         Disabled
vmps                         Disabled
psp                          Disabled
Recovery command: "clear     Disabled

Best Answer

Check if your interfaces are in err-disabled. If so, it's due to a known Cisco bug where it states gbic-invalid (even though it is valid) , you can manually shut no shut the interface with the SFP or add errdisable recovery cause gbic-invalid to your config. Possibly the bug will be fixed in future IOS releases.

Tidy

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