1G / 10G / 40G / 100G 介面相容問題

[Sung-Lun_Yang1]

Dear all,

最近接到一些詢問有關於 10G 或是 40G卡版能否向下相容 1G介面的問題，我們有一篇SK：sk92755 說明各個卡版與支援的transceivers的規格。

以下列出該表格的部份內容：

Solution

Below is the list of supported configurations of line cards:

Line Card SKU	Line Card Description	Supported Appliances	Supported Transceivers	Supported Rates
CPAC-4-1F-B	4 Port 1GBase-F SFP	5000 15000 23800	CPAC-TR-1T-B CPAC-TR-1SX-B CPAC-TR-1LX-B	1 Gb
CPAC-2-10F-B	2 Port 10GBase-F SFP+ with multirate support	5600-5900 15000 23000	CPAC-TR-10SR-B CPAC-TR-10LR-B	1 Gb 10 Gb
CPAC-4-10F-B	4 Port 10GBase-F SFP+ with multirate support	5600-5900 15000 23000	CPAC-TR-10SR-B CPAC-TR-10LR-B	1 Gb 10 Gb
CPAC-2-40F-B	2 Port 40G Base-F QSFP+	5800-5900 15000 23000	CPAC-TR-40SRQSFP-300m CPAC-TR-40LRQSFP-10K CPAC-TR-40SRQSFP-BiDi	40 Gb

原則上新的卡版(5000/15000/23000)都支援 10G 向下相容 1G的 Transceivers，舊的2 Port 10G卡版(4000/13500)只支援10G。