11-25-2019 03:14 AM
Hi!
I am interested in technical information about the Cisco GLC-LH-SMD.
Tell me, please, does this module support two ranges of 100Mbps and 1.25Gbps?
Thank You
11-25-2019 03:51 AM
The GLC-LH-SMD is a 1 Gbps transceiver and the speed is fixed at 1 Gbps only.
01-02-2020 06:19 PM
01-03-2020 08:23 AM
01-03-2020 06:45 PM
That's correct - the physical layer signaling of a 1 Gbps transceiver is 1.25 Gbps. However the encoding of Ethernet frames onto that results in a 1 Gbps data transmission rate.
https://www.cisco.com/en/US/tech/tk389/tk214/tech_brief09186a0080091a8a.html
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