2989938 FL SWITCH LM 4TX/2FX SM ST-E

2989093 FL SWITCH SMCS 4TX-PN

2700787 FL SWITCH GHS 12G/8-L3

2700692 FL SWITCH IRT TX 3POF

2891028 FL SWITCH SFNB 4TX/FX ST

2700689 FL SWITCH IRT 4TX

2700691 FL SWITCH IRT 2TX 2POF

2891057 FL SWITCH 

2891444 FL SWITCH SFN 5GT

2989459 FL SWITCH LM 4TX/2FX-B

2989239 FL SWITCH LM 4TX/2FX SM ST

2989925 FL SWITCH LM 4TX/1FX SM ST

2891031 FL SWITCH 

2891058 FL SWITCH 

2891110 FL SWITCH SFN 7TX/FX ST

2891023 FL SWITCH SFN 7TX/FX-NF

2891097 FL SWITCH SFN 7TX/FX

2891934 FL SWITCH SFN 15TX/FX

2891563 FL SWITCH SFN 6GT/2LX-20

2891022 FL SWITCH SFN 8TX-NF

2891024 FL SWITCH SFN 6TX/2FX-NF

2891044 FL SWITCH SFNT 4TX/FX-C

2891048 FL SWITCH SFNT 6TX/2FX-C

2891049 FL SWITCH SFNT 6TX/2FX ST-C

2891047 FL SWITCH SFNT 7TX/FX ST-C

2891479 FL SWITCH SMCS 6GT/2SFP

2891046 FL SWITCH SFNT 7TX/FX-C

2891043 FL SWITCH SFNT 5TX-C

2891045 FL SWITCH SFNT 8TX-C

2891953 FL SWITCH SFNT 15TX/FX

2891005 FL SWITCH SFNT 8TX

2891007 FL SWITCH SFNT 7TX/FX ST

2989103 FL SWITCH SMCS 8TX-PN

2891004 FL SWITCH SFNT 4TX/FX

2891006 FL SWITCH SFNT 7TX/FX

2891026 FL SWITCH SFNT 6TX/2FX ST

2891864 FL SWITCH LM 4TX/2FX SM-E

2989446 FL SWITCH LM 8TX-B

2989336 FL SWITCH LM 5TX-E

2891660 FL SWITCH LM 4TX/2FX-E

2989734 FL SWITCH LM 4TX/1FX SM 

2989828 FL SWITCH LM 4TX/1FX SM

2989637 FL SWITCH LM 4TX/1FX SM-E

2989433 FL SWITCH LM 4TX/1FX-E

2700786 FL SWITCH GHS 4G/12-L3

2891034 FL SWITCH 3004T-FX ST

2891411 FL SWITCH SFN 6TX/2FX ST

2891033 FL SWITCH 3004T-FX

2891032 FL SWITCH 3005T

2700271 FL SWITCH GHS 4G/12

2891030 FL SWITCH

2832577 FL SWITCH SF 7TX/FX ST

2891025 FL SWITCH SFNT 6TX/2FX

2832726 FL SWITCH SF 7TX/FX

2891027 FL SWITCH SFNB 4TX/FX

2832603 FL SWITCH SF 4TX/3FX ST

2832661 FL SWITCH SF 15TX/FX

2701466 FL SWITCH SMCS 14TX/2FX-SM

2989462 FL SWITCH LM 4TX/2FX SM-B

2891398 FL SWITCH SFN 6GT/2SX

2832632 FL SWITCH LM 8TX

2891003 FL SWITCH SFNT 5TX

2891518 FL SWITCH SFN 7GT/SX

2832658 FL SWITCH LM 4TX/2FX

2832849 FL SWITCH SF 16TX

2891021 FL SWITCH SFN 5TX-24VAC

2891954 FL SWITCH SFNT 14TX/2FX

2989226 FL SWITCH SMCS 8TX

2891314 FL SWITCH SFN 6TX/2FX

2891072 FL SWITCH 4824E-4GC

2989501 FL SWITCH SMN 8TX-PN

2832933 FL SWITCH SF 6TX/2FX

2832674 FL SWITCH SF 6TX/2FX ST

2891851 FL SWITCH SFN 4TX/FX

2891453 FL SWITCH SFN 4TX/FX ST

2891152 FL SWITCH SFN 5TX

2891673 FL SWITCH SFN 8GT

2891929 FL SWITCH SFN 8TX

2891001 FL SWITCH SFNB 5TX

2891466 FL SWITCH LM 8TX-E

2891036 FL SWITCH 3006T-2FX

2700997 FL SWITCH SMCS 14TX/2FX

2891002 FL SWITCH SFNB 8TX

2891987 FL SWITCH SFN 6GT/2LX

2891123 FL SWITCH SMCS 8GT

2832771 FL SWITCH SF 8TX

2700200 FL SWITCH 1605 M12

2891952 FL SWITCH SFNT 16TX

2891060 FL SWITCH 3006T-2FX SM

2989530 FL  LM 4TX/1FX ST-E

2989721 FL SWITCH LM 4TX/1FX ST

2700996 FL SWITCH SMCS 16TX

2891059 FL SWITCH 3016T

2891064 FL SWITCH 1001T-4POE

2891065 FL SWITCH 1008E

2891037 FL SWITCH 3006T-2FX ST

2891063 FL SWITC

2891062 FL SWITCH 4008T-2SFP

2891035 FL SWITCH 3008T

交换机（switch）是一种在通信系统中完成信息交换功能的设备。

在计算机网络系统中，交换概念的提出是对于共享工作模式的改进。HUB集线器就是一种共享设备，HUB本身不能识别目的地址，当同一局域网内的A主机给B主机传输数据时，数据包在以 HUB为架构的网络上是以广播方式传输的，由每一台终端通过验证数据包头的地址信息来确定是否接收。