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| LEDs 43 |
Table 7 |
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MDA LED indications |
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| |
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Label | Color | State | Meaning |
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TX | Green | Steady | Indicates network activity for the corresponding port. |
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| A very low level of network activity (approximately |
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| |
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| — | Off | The port is not transmitting data (no network activity). |
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| Amber | Blinking | The port is out of order; the administrative state is |
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| down. |
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RX | Green | Blinking | Indicates network activity for the corresponding port |
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| (the port is receiving traffic). |
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| Green | Steady | The port is operational; no network activity. |
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| Amber | Blinking | The port is not operational; the administrative state |
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| is down. |
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| Amber | Steady |
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| A Remote Defect Indication (RDI) alarm condition |
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| has been detected; the administrative state is down. |
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| The RDI alarm condition indicates that a failure |
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| occurred at the far end of the network. In ATM, |
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| when the physical layer detects loss of signal or |
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| cell synchronization, RDI cells are used to report a |
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| VPC/VCC failure. RDI cells are sent upstream by a |
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| VPC/VCC endpoint to notify the source VPC/VCC |
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| endpoint of the downstream failure. |
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| — | Off | The port is not operational. Be sure that the MDA is |
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| fully seated in the slot; check that the port is properly |
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| configured. |
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Nortel Ethernet Routing Switch 8600
Installation — Media Dependent Adapters for the 8672ATME and 8672ATMM Modules
30 May 2008
