如果在Nexus 10 10Gbit以太网端口上检查显示instead命令,则输出显示名义比特率为12000 MBits/秒,而不是10000 MBits/秒。如我所知,12字节帧间间隙+8字节前导+ 18字节帧头和FCS都包含在10Gig以太网的带宽10000 MBits/秒中。那么,使用2000 Mbit/秒的开销是什么?
switch# show interface Ethernet1/5 transceiver
Ethernet1/5
sfp is present
name is CISCO-MOLEX INC
part number is 74752-9025
revision is