Why Are Only Two Optical Interfaces Displayed After a 4-Port Front subcard Is Installed in an S5700

Issue Description

Why Are Only Two Optical Interfaces Displayed After a 4-Port Front subcard Is Installed in an S5700?

Solution

This is because no extended channel rear card is installed in the switch.

An S5700SI or S5700EI switch can provide only two optical interfaces for front subcard. If a 4-port front subcard is installed, the switch must use an ES5D00ETPB00 extended channel rear subcard to provide the other two interfaces. Without an extended channel rear subcard, only two optical interfaces are displayed.

If a 4-port GE front subcard (ES5D000G4S01/ES5D00G4SA01) and an ES5D00ETPC00 rear stack card (working normally) are used together in a switch, only the first and second interfaces on the front card can work normally, and the other two interfaces cannot be used.

QQ图片20170915094002

If a 4-port 10GE front subcard (ES5D000X4S01) and an ES5D00ETPC00 rear stack card (working normally) are used together in a switch, only the first and third interfaces on the front subcard can work normally, and the other two interfaces cannot be used.

QQ图片20170915094053

NOTE:
The available interfaces on the ES5D000X4S01 front subcard are displayed as XGigabitEthernet */1/1 and XGigabitEthernet */1/2 on the CLI, corresponding to physical interfaces 1 and 3 on the front subcard.
* indicates a slot ID on the switch.

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