Cisco Cisco Gigabit Ethernet GBIC SFP Modules 安装指南

From Cisco IOS Release 15.3(2)T onwards, Cisco recognizes both Cisco-certified SFPs and third-party 
SFPs on the Cisco Gigabit Ethernet enhanced high-speed WAN interface card (EHWIC). However, Cisco 
does not provide any kind of support for the third-party SFPs because they are not validated by Cisco.

Cisco Gigabit Ethernet EHWICs connect to the network through various supported small form-factor 
pluggable modules (SFPs). Cabling requirements vary by SFP.

For information on cabling requirements for various SFPs supported by the Cisco Gigabit Ethernet 
EHWIC. (See 

.)

For information on installing SFP modules, see 

Class 1 laser product. Statement 1008

Because invisible radiation may be emitted from the aperture of the port when no fiber cable is 
connected, avoid exposure to radiation and do not stare into open apertures. Statement 125

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into 
beams or view directly with optical instruments. Statement 1051

SFP EN

Off

Not present.

Green

Present and enabled.

Amber

Present with failure.

ACT

Solid or blinking 
green

Blinks proportional to valid Ethernet traffic. 

Off

No packet transfers are occurring.

LNK

Green

Solid green indicates the Ethernet port has a link partner.

SPD

Off

No link.

Green

Blink indicates port speed.

blinking

1 blink before pause—10 Mbps link speed.
2 blinks before pause—100 Mbps link speed.
3 blinks before pause—1000 Mbps link speed.