有時候 Cisco接上光纖非Cisco原廠的模組會出現以下訊息:
GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi1/0/28 has bad crc
PM-4-ERR_DISABLE: gbic-invalid error detected on Gi1/0/25, putting Gi1/0/25 in err-disable state
用以下指令可以解除這個狀況
//第一行隱藏指令,Tab, ? 是不會出現unsupported-transceiver 的,輸入後會出現Warning:…等訊息
(config)# service unsupported-transceiver
(config)# no errdisable detect cause gbic-inval
一開始接上就會被disable,記得將這些port shutdown再no shutdown (不然會再出現Unsupported transceiver的訊息),再把模組重接。
參考網址:http://www.kuncar.net/blog/unlocking-cisco-devices-to-work-with-unsupported-sfp/2008/