ZL50404 参数 Datasheet PDF下载

ZL50404

1. Source or Destination MAC address based

2. Flow based

3. Port based

Data Sheet

In source or destination mac address based mirroring, the “M” bit of the mirroring MAC address in the MCT is set.

Also, the user need to specify the mirroring MAC address is source or destination of the packet. If source is

selected, any packet received with the mirroring MAC address as source MAC address will be copied to the

mirrored port. In the same way, if destination is selected, any packet received with mirroring MAC address as

destination MAC address will be copied to the mirrored port.

In flow based mirroring, a flow is established based on the source and destination mac address pair. When

enabled, a packet with source and destination address match the pre-programmed source and destination mac

address pair will be copied to the mirrored port. In reverse direction (source and destination match pre programmed

destination and source), the flow can also be enabled and the frame will be copied to the mirrored port.

In port based mirroring, traffic from any RMAC port can be mirrored to any RMAC port. The traffic from the source

port can be either ingress or egress traffic. Up to two ports can be setup as mirrored ports. As a result, the traffic

(both ingress and egress) of a specific port can be monitored by setting up both mirrored ports. Once a port is setup

as mirrored port, it cannot be used for regular traffic.

The mirrored port can be any port in the ZL50404.

9.2

Using port mirroring for loop back

To perform remote loop back test, port mirroring can be used to bounce back the packet to the source port to check

the data path.

The CPU needs to setup the remote device through the command channel to enable port mirroring in the remote

device. A CPU packet is send to the port in test in Device A. The packet will be forwarded to the test port, external

cable, the destination port in Device B, and loop back to itself, back to the cable and go back to Device A and the

CPU. This way, the whole channel can be tested.

CPU

DEVICE A

DEVICE B

Figure 9 - Remote Loopback Test

10.0

10.1

GPSI (7WS) Interface

GPSI connection

The RMAC ethernet port can function in GPSI (7WS) mode. In this mode, the TXD[0], RXD[0] serve as TX data, RX

data and respectively. The link and duplex of the port can be controlled by programming the ECR register. Only

port-based VLAN is supported with GPSI interface.

42

Zarlink Semiconductor Inc.