If there is an empty LEM slot (with or without the blank module), then the LEM(s) present after this slot will
not be detected.
LEM 3
3
LEM 1
1
LEM 2
2
Consider the following cases:
• If LEM 1 is absent, both LEM 2 and LEM 3 are not detected by the switch.
• If LEM 2 is absent, then only LEM 1 is detected by the switch. LEM 3 is ignored.
• If LEM 3 is absent, the switch detects both LEM 1 and LEM 2 because there are no LEMs after LEM
3.
Note
A LEM should be removed only while replacing it with a new one in case of a fault condition. For more
information on installing and removing the LEM, see the chapter
Installing and Removing the Linecard
Expansion Module
.
Cisco MDS 9396T Multilayer Fabric Switch Hardware Installation Guide
15
Product Overview
Linecard Expansion Module