ESXi 5.5 Cisco VEM not available . How to install

Teh following may be wrong :
We can just turn on CDP (Cisco Discovery Protocol) as physical switches are connected to office Cisco Routers/Equipments

esxi5.5 # esxcfg-vswitch vSwitch0 -b

listen

 ## change to listen and advertise as: 

esxi5.5 # esxcfg-vswitch vSwitch0 -B both

esxi5.5 # esxcfg-vswitch vSwitch0 -b

both

Link: http://buildvirtual.net/configuring-cdp-and-lldp-for-esxi-vswitches/

ssh fts-sj-esx -l root

/vmfs/volumes/datastore-1 # vem status -v
-sh: vem: not found

vmkload_mod -h
Usage: vmkload_mod <options> <module> <param_name=value ...>
Options:
   -h --help
   -l --list
   -m --mod-name <name>

esxcli -h

Usage: esxcli [options] {namespace}+ {cmd} [cmd options]

esxcli: error: no such option: -h

Refer to:
http://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/unified-computing/basic_troubleshooting_vm_fex.html

http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/vm_fex/vmware/gui/config_guide/b_GUI_VMware_VM-FEX_UCSM_Configuration_Guide/b_GUI_VMware_VM-FEX_UCSM_Configuration_Guide_chapter_011.html#task_385D4BF2CA0D4FE18270F91FE1ED77D4