High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
14.5.3.21Switch Engine Port Mirroring Register (SWE_PORT_MIRROR)Register #: | 1846h | Size: | 32 bits |
This register is used to configure port mirroring.
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| DESCRIPTION | TYPE | DEFAULT |
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31:9 | RESERVED | RO | - | |
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8 | Enable RX Mirroring Filtered | R/W | 0b | |
| When set, packets that would normally have been filtered are included in the |
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| receive mirroring function and are sent only to the sniffer port. When |
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| cleared, filtered packets are not mirrored. |
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| Note: | The Ingress Filtered Count Registers will still count these packets |
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| as filtered and the Switch Engine Interrupt Pending Register |
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| (SWE_IPR) will still register a drop interrupt. |
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7:5 | Sniffer Port | R/W | 00b | |
| These bits specify the sniffer port that transmits packets that are monitored. |
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| Bits 7,6,5 correspond to switch ports 2,1,0 respectively. |
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| Note: | Only one port should be set as the sniffer. |
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4:2 | Mirrored Port | R/W | 00b | |
| These bits specify if a port is to be mirrored. Bits 4,3,2 correspond to switch |
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| ports 2,1,0 respectively. |
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| Note: | Multiple ports can be set as mirrored. |
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1 | Enable RX Mirroring | R/W | 0b | |
| This bit enables packets received on the mirrored ports to be also sent to |
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| the sniffer port. |
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0 | Enable TX Mirroring | R/W | 0b | |
| This bit enables packets transmitted on the mirrored ports to be also sent to |
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| the sniffer port. |
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SMSC LAN9312 | 389 | Revision 1.4 |
| DATASHEET |
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