C315#show version
System description : Ruijie 10G Ethernet Switch with PoE (S2910C-48GT2XS-HP-E) By Ruijie Networks
System start time : 2016-06-17 11:06:19
System uptime : 0:00:18:58
System hardware version : 1.01
System software version : S2910_RGOS 11.4(1)B1
System patch number : NA
System serial number : G1J90L5000711
System boot version : 1.2.12
Module information:
Slot 0 : S2910C-48GT2XS-HP-E
Cpu 0:
Hardware version : 1.01
System start time : 2016-06-17 11:06:19
Boot version : 1.2.12
Software version : S2910_RGOS 11.4(1)B1
Serial number : G1J90L5000711
C315#show interface status
Interface Status Vlan Duplex Speed Type
---------------------------------------- -------- ---- ------- --------- ------
GigabitEthernet 0/1 down 1 Unknown Unknown copper
GigabitEthernet 0/2 down 1 Unknown Unknown copper
GigabitEthernet 0/3 down 1 Unknown Unknown copper
GigabitEthernet 0/4 down 1 Unknown Unknown copper
GigabitEthernet 0/5 down 1 Unknown Unknown copper
GigabitEthernet 0/6 down 1 Unknown Unknown copper
GigabitEthernet 0/7 down 1 Unknown Unknown copper
GigabitEthernet 0/8 down 1 Unknown Unknown copper
GigabitEthernet 0/9 down 1 Unknown Unknown copper
GigabitEthernet 0/10 down 1 Unknown Unknown copper
GigabitEthernet 0/11 down 1 Unknown Unknown copper
GigabitEthernet 0/12 down 1 Unknown Unknown copper
GigabitEthernet 0/13 down 1 Unknown Unknown copper
GigabitEthernet 0/14 down 1 Unknown Unknown copper
GigabitEthernet 0/15 down 1 Unknown Unknown copper
GigabitEthernet 0/16 down 1 Unknown Unknown copper
GigabitEthernet 0/17 down 1 Unknown Unknown copper
GigabitEthernet 0/18 down 1 Unknown Unknown copper
GigabitEthernet 0/19 down 1 Unknown Unknown copper
GigabitEthernet 0/20 down 1 Unknown Unknown copper
GigabitEthernet 0/21 down 1 Unknown Unknown copper
GigabitEthernet 0/22 down 1 Unknown Unknown copper
GigabitEthernet 0/23 down 1 Unknown Unknown copper
GigabitEthernet 0/24 down 1 Unknown Unknown copper
GigabitEthernet 0/25 down 1 Unknown Unknown copper
GigabitEthernet 0/26 down 1 Unknown Unknown copper
GigabitEthernet 0/27 down 1 Unknown Unknown copper
GigabitEthernet 0/28 down 1 Unknown Unknown copper
GigabitEthernet 0/29 down 1 Unknown Unknown copper
GigabitEthernet 0/30 down 1 Unknown Unknown copper
GigabitEthernet 0/31 down 1 Unknown Unknown copper
GigabitEthernet 0/32 down 1 Unknown Unknown copper
GigabitEthernet 0/33 down 1 Unknown Unknown copper
GigabitEthernet 0/34 down 1 Unknown Unknown copper
GigabitEthernet 0/35 down 1 Unknown Unknown copper
GigabitEthernet 0/36 down 1 Unknown Unknown copper
GigabitEthernet 0/37 down 1 Unknown Unknown copper
GigabitEthernet 0/38 down 1 Unknown Unknown copper
GigabitEthernet 0/39 down 1 Unknown Unknown copper
GigabitEthernet 0/40 down 1 Unknown Unknown copper
GigabitEthernet 0/41 down 1 Unknown Unknown copper
GigabitEthernet 0/42 down 1 Unknown Unknown copper
GigabitEthernet 0/43 down 1 Unknown Unknown copper
GigabitEthernet 0/44 down 1 Unknown Unknown copper
GigabitEthernet 0/45 down 1 Unknown Unknown copper
GigabitEthernet 0/46 down 1 Unknown Unknown copper
GigabitEthernet 0/47 down 1 Unknown Unknown copper
GigabitEthernet 0/48 down 1 Unknown Unknown copper
TenGigabitEthernet 0/49 down 1 Unknown Unknown fiber
TenGigabitEthernet 0/50 down 1 Unknown Unknown fiber
TenGigabitEthernet 1/1 down 1 Unknown Unknown copper
TenGigabitEthernet 2/1 down 1 Unknown Unknown copper
C315#conf t
Enter configuration commands, one per line. End with CNTL/Z.
C315(config)#inter
C315(config)#interface g0/21
C315(config-if-GigabitEthernet 0/21)#sw
C315(config-if-GigabitEthernet 0/21)#switchport mo
C315(config-if-GigabitEthernet 0/21)#switchport mode ?
access Set trunking mode to ACCESS unconditionally
dot1q-tunnel Set mode to Dot1q-tunnel
hybrid Hybrid
private-vlan Private vlan
trunk Set trunking mode to TRUNK unconditionally
uplink Set mode to UPLINK
POE (Power Over Ethernet)指的是在现有的以太网Cat.5布线基础架构不作任何改动的情况下，在为一些基于IP的终端（如IP电话机、无线局域网接入点AP、网络摄像机等）传输数据信号的同时，还能为此类设备提供直流供电的技术。