參數(shù)資料
型號: IP175C-DS-R08
廠商: Electronic Theatre Controls, Inc.
英文描述: 5 Port 10/100 Ethernet Integrated Switch
中文描述: 5端口10/100以太網(wǎng)集成開關(guān)
文件頁數(shù): 48/111頁
文件大?。?/td> 679K
代理商: IP175C-DS-R08
IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
2.10
Copyright
2004, IC Plus Corp.
48/111
Mar 09, 2007
IP175C/IP175CH-DS-R14
Spanning tree
IP175C/IP175CH supports spanning tree function with the following features:
1. Detect BPDU frames by examining multicast address (01-80-c2-00-00-00).
2. Forward BPDU packets to CPU through MII0 and add special tag for source port information.
3. Forward BPDU packets from CPU according to the special tag in a frame.
Please refer to section 2.5 “Tag VLAN / Tag and un-tag function”.
2.10.1
Port states
To support spanning tree protocol, each port of IP175C/IP175CH provides five port states shown in the
following table. Port 0~4 of IP175C/IP175CH can be configured in one of the five spanning tree states
individually by programming MII register 30.16 to enable (disable) forwarding and learning function. Port
5 (MII0) is dedicated for CPU.
Fwd BPDU
packet to CPU
from CPU
Disable
X (note 2)
X (note 2)
Blocking
O
X (note 3)
Listening
O
O
Learning
O
O
Forwarding
O
O
State
Fwd BPDU packet
Address
learning
X
X
X
O
O
Fwd all packet
normally
X
X
X
X
O
(Forward enable,
Learning enable)
(0,0)
(0,0)
(0,0)
(0,1)
(1,1)
Note1:
O: enabled, X: disabled
Note2:
CPU should not send packets to IP175C/IP175CH and should discard packets from
IP175C/IP175CH.
Note3:
CPU should not send packets to IP175C/IP175CH.
相關(guān)PDF資料
PDF描述
IP175C-DS-R09 5 Port 10/100 Ethernet Integrated Switch
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IP175C-DS-R11 5 Port 10/100 Ethernet Integrated Switch
IP175CH 5 Port 10/100 Ethernet Integrated Switch
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IP175C-DS-R09 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 Port 10/100 Ethernet Integrated Switch
IP175C-DS-R10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 Port 10/100 Ethernet Integrated Switch
IP175C-DS-R11 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 Port 10/100 Ethernet Integrated Switch
IP175CH 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 Port 10/100 Ethernet Integrated Switch
IP175CHLF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 Port 10/100 Ethernet Integrated Switch