For M-series and T-series Fast Ethernet 12-port and 48-port PIC interfaces, the management Ethernet interface (fxp0), the J-series Gigabit Ethernet uPIM interfaces, and the MX-series Tri-Rate Ethernet copper interfaces, you can explicitly set the interface speed. The Fast Ethernet and fxp0 interfaces can be configured for 10 Mbps or 100 Mbps (10m | 100m). The J-series Gigabit Ethernet uPIM interfaces and the MX-series Tri-Rate Ethernet copper interfaces can be configured for 10 Mbps, 100 Mbps, or 1 Gbps (10m | 100m | 1g).
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Note: When you configure the Tri-Rate Ethernet copper interface to operate at 1 Gbps, autonegotiation must be enabled. |
To explicitly configure the speed, include the speed statement at the [edit interfaces interface-name] hierarchy level:
- [edit interfaces interface-name]
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speed (10m | 100m | 1g);