25 GbE ports typically support 25 Gbps, 10 Gbps, and 1 Gbps operational speeds. Auto-Negotiation support varies depending on the pluggable type and speed.
The following table provides a summary of Auto-Negotiation support for 25 Gbps ports.
Transceiver Type |
Auto-Negotiation |
---|---|
25 Gbps DAC |
Supported Note:
Exception: VIM5-2Y and VIM5-4Y do not support Auto-Negotiation at 25 Gbps. |
25 Gbps SR, LR, AOC |
Not Supported |
10 Gbps |
Not Supported |
1 Gbps |
Note:
Not Supported for VSP 7400-48Y. |
Forward Error Correction (FEC) is a negotiated port attribute for 25 GbE connections that support Auto-Negotiation. For more information, see Forward Error Correction.