參數(shù)資料
型號: IXE5418
元件分類: 通信、網(wǎng)絡模塊及開發(fā)工具
英文描述: Telecomm/Datacomm
中文描述: 電信/數(shù)據(jù)通信
文件頁數(shù): 9/30頁
文件大小: 367K
代理商: IXE5418
Intel Media Switch
IXE5418 Gigabit Device
Data Sheet
9
5.0
Data Structures
5.1
Switching Block Entries
The Switching Engine block of the IXE5418 device uses a group of data structures when making
its forwarding decisions. These data structures called “entries” are linked to each other via pointers
and are usually stored in an external SSRAM (some of them can also be stored on-chip), as shown
below in
Figure 3
.
Each type of “entry” contains different information that allows the IXE5418 to support its diverse
set of features. Multiple addresses can point to the same entry type unless they use different
features. This results in compact and efficient memory usage, with memory requirements
increasing only as more of these features are enabled.
Figure 3.
IXE5418 Data Structures
RECORD
ENTRY
RECORD
ENTRY
RULES ENTRY
PROTOCOL
ENTRY
PROTOCOL
ENTRY
PROTOCOL
ENTRY
SWAP/QOS/FLOW
STAT ENTRY
NET ID ENTRY
NET ID ENTRY
Multiple Record Entries can
point to the same Rules
Entry, or to separate Rules
Entries.
Multiple words of the
Protocol Entry can point to
the same Net ID Entry, or to
separate Net ID Entries.
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