Situation

# 使用非Cisco原廠的GBIC跳出ErrDisable
Using a non-Cisco GBIC results in an errdisable state.

Solution

(conf t)
[1]
service unsupported-transceiver	

[2]
no errdisable detect cause gbic-invalid	

# 如果是10G模組但對端沒有的話可以關閉協商速度
(interface giga 0/0)
[3]
speed nonegotiate