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参数资料
| 型号： | ZL50408GDC |
| 厂商： | CONEXANT SYSTEMS |
| 元件分类： | 网络接口 |
| 英文描述： | DATACOM, LAN SWITCHING CIRCUIT, PBGA208 |
| 封装： | 17 X 17 MM, 1.40 MM HEIGHT, MO-192, LBGA-208 |
| 文件页数： | 120/144页 |
| 文件大小： | 1779K |
| 代理商： | ZL50408GDC |
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ZL50408
Data Sheet
77
Zarlink Semiconductor Inc.
Bit [1]:
Filter Tag frame
0: Disable (Default)
1: All tagged frames from this port are discarded or follow security option when
security is enable
Bit [2]:
Learning Disable
0: Learning is enabled on this port (Default)
1: Learning is disabled on this port
Bit [3]:
Rate control timer select (RMAC ports only)
0: 10 microsecond refreshing time (Default)
1: 1 millisecond refreshing time
Bit [4]
0
Bit [5]
Do not change VLAN tag. This overrides PVMAPnn_3 bit [2]. If this bit is set, no
tag will be replaced nor removed.
0: Disable (Default)
1: Enable
Bits [7:6]
Security Enable. The ZL50408 checks the incoming data for one of the following
conditions:
If the source MAC address of the incoming packet is in the MAC table and is
defined as secure address but the ingress port is not the same as the port
associated with the MAC address in the MAC table.
A MAC address is defined as secure when its entry at MAC table has
static status and bit 0 is set to 1. MAC address bit 0 (the first bit
transmitted) indicates whether the address is unicast or multicast. As
source addresses are always unicast bit 0 is not used (always 0).
ZL50408 uses this bit to define secure MAC addresses.
If the port is set as learning disable and the source MAC address of the
incoming packet is not defined in the MAC address table or the MAC
address is not associated to the ingress port.
If any one of the conditions is met, the packet is forwarded based on these setting.
00 – Disable port security, forward packets as usual. (Default)
01 – Discard violating packets
10 – Forward violating packets as usual and also to the CPU for inspection
11 – Forward violating packets to the CPU for inspection
It also checks for one of the following additional conditions:
If the port is configured to filter untagged frames and an untagged frame
arrives, or
If the port is configured to filter tagged frames and a tagged frame arrives, or
If the packet has the source mac address on the source mac address filter
list, or
If the packet has the destination mac address on the destination mac
address filter list
If any one of the conditions is met, the packet will be handled according to:
0X – Discard violating packets
1X – Forward violating packets to CPU for inspection
相关PDF资料 |
PDF描述 |
|---|---|
| ZL50408GDG2 | DATACOM, LAN SWITCHING CIRCUIT, PBGA208 |
| ZL50418GKG2 | DATACOM, LAN SWITCHING CIRCUIT, PBGA553 |
| ZL50418/GKC | DATACOM, LAN SWITCHING CIRCUIT, PBGA553 |
| ZL50418GKG2 | DATACOM, LAN SWITCHING CIRCUIT, PBGA553 |
| ZLW-2-B | 1 MHz - 1000 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, 9.5 dB CONVERSION LOSS-MAX |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ZL50408GDG2 | 制造商:Microsemi Corporation 功能描述: |
| ZL50409 | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Managed 9-Port 10/100M Ethernet Switch |
| ZL50409GDC | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Managed 9-Port 10/100M Ethernet Switch |
| ZL50409GDC1 | 制造商:Microsemi Corporation 功能描述: |
| ZL50410 | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Managed 8-Port 10/100M + 1-Port 10/100/1000M Ethernet Switch |
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