S1208F-AF硬件表项资源display resource-monitor

display resource-monitor chassis 1 slot 4 

 Minor alarms resending: Enabled Chassis 1 Slot 4

 Resource  Minor Severe Free/Total (%) (%) (absolute)

 ac 20 5 28390/28672 

 agg_group 20 5 1012/1024

 arp 20 5 767960/768000 

 arp_encap 20 5 106212/106496 

 ecmp_fec_1 20 5 81872/81920

 ecmp_fec_2 20 5 77756/77824

 lem 20 5 733202/768000 

 local_ecmp 20 5 2024/2048 

 local_fec 20 5 81723/81920 mac 20 5 749447/750001

 mc 20 5 32000/32000 mqcin 20 5 25600/25600 

 mqcout 20 5 12800/12800 nd 20 5 65532/65536 

 openflow 20 5 29692/29696 pbr 20 5 25600/25600

 pfilterin 20 5 25600/25600 

 pfilterout 20 5 12800/12800

 route 20 5 258133/262144

 rport 20 5 4082/4094

 subrport 20 5 4094/4094 

 vlaninterface 20 5 4093/4096 

 vrf 20 5 16369/16383 

 vsi 20 5 16317/16384

 vsiintf 20 5 16317/16384  

这个里面的lem代表什么含义？

无