參數(shù)資料
型號: KSZ8842-PMBL AM TR
廠商: Micrel Inc
文件頁數(shù): 39/119頁
文件大?。?/td> 0K
描述: IC ETHERNET SW 2PORT 100LFBGA
標(biāo)準(zhǔn)包裝: 1,000
控制器類型: 以太網(wǎng)開關(guān)控制器
接口: PCI
電源電壓: 3.1 V ~ 3.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LFBGA
供應(yīng)商設(shè)備封裝: 100-LFBGA
包裝: 帶卷 (TR)
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
26
M9999-100207-1.5
Forwarding
The KSZ8842-PMQL/PMBL forwards packets using the algorithm that is depicted in the following flowcharts. Figure 7
shows stage one of the forwarding algorithm where the search engine looks up the VLAN ID, static table, and dynamic
table for the destination address, and comes up with “port to forward 1” (PTF1). PTF1 is then further modified by
spanning tree, IGMP snooping, port mirroring, and port VLAN processes to come up with “port to forward 2” (PTF2), as
shown in Figure 8. The packet is sent to PTF2.
Start
VLAN ID
valid?
PTF1 = NULL
Search Static
Table
Search complete.
Get PTF1 from
Static MAC Table
Dynamic Table
Search
Search complete.
Get PTF1 from
VLAN table
Search complete.
Get PTF1 from
Dynamic MAC Table
PTF1
- Search VLAN table
- Ingress VLAN filtering
- Discard NPVID check
YES
NO
FOUND
NOT
FOUND
NOT
FOUND
This search is based on
DA or DA+FID
This search is based on
DA+FID
Figure 7. Destination Address Lookup Flow Chart, Stage 1
相關(guān)PDF資料
PDF描述
KSZ8842-PMQLI IC ETHERNET SW 2PORT PCI 128PQFP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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