Symptom

sh interface transceiver always displays the cisco id as "--" and the extended id as "4" for SFP+. Ethernet1/8 transceiver is present type is SFP-1000base-LH name is CISCO-SUMITOMO part number is SCP6G44-C1-BMH revision is A serial number is SPC15520DDZ nominal bitrate is 1300 MBit/sec Link length supported for 9/125um fiber is 10 km cisco id is -- <==== cisco extended id number is 4 N5K-C5672UP-2# sh int ether 1/11 transceiver details Ethernet1/11 transceiver is present type is 10Gbase-SR name is CISCO-AVAGO part number is SFBR-709SMZ-CS2 revision is G4.1 serial number is AVD1933D0AA nominal bitrate is 10300 MBit/sec Link length supported for 50/125um OM2 fiber is 82 m Link length supported for 62.5/125um fiber is 26 m Link length supported for copper is 40 m Link length supported for 50/125um OM3 fiber is 300 m cisco id is -- cisco extended id number is 4

Conditions

Workaround

[Partial workaround] The "cisco id" field in output of show interface transceiver is intended to print the transceiver ID, which is taken from the first byte in the transceiver SPROM. This ID depends on the type of transceiver currently installed, for example expected behavior is to see "cisco id is 3" for SFP or "cisco id is 13" for QSFP. This information can be also retrieved using the following command: N5K# show interface ethernet transceiver sprom | i Identifier Identifier : 0x03 (SFP) <== transceiver ID and corresponding type Ext_Identifier : 0x04

Further Problem Description