6GK7342-5DA00-0XE0西門子報(bào)價(jià)

6GK7342-5DA00-0XE0

VLAN如何操作： ·配置在交換機(jī)上的每一個(gè)VLAN都能執(zhí)行地址學(xué)習(xí)、轉(zhuǎn)發(fā)/過(guò)濾和消除 回路機(jī)制，就像一個(gè)獨(dú)立的物理網(wǎng)橋一樣。VLAN可能包括幾個(gè)端口 ·交換機(jī)通過(guò)將數(shù)據(jù)轉(zhuǎn)發(fā)到與發(fā)起端口同一VLAN的目的端口實(shí)現(xiàn)VLAN。 ·通常一個(gè)端口只運(yùn)載它所屬VLAN的通信量。 VLAN的成員模式： 靜態(tài)：分配給VLAN的端口由管理員靜態(tài)（人工）配置。 動(dòng)態(tài)：動(dòng)態(tài)VLAN可基于MAC地址、IP地址等識(shí)別其成員資格。當(dāng)使用MAC 地址時(shí)，通常的方式是用VLAN成員資格策略服務(wù)器（VMPS）支持動(dòng)態(tài)VL AN。VMPS包括一個(gè)映射MAC地址到VLAN分配的數(shù)據(jù)庫(kù)。當(dāng)一個(gè)幀到達(dá)動(dòng)態(tài) 端口時(shí)，交換機(jī)根據(jù)幀的源地址查詢VMPS，獲取相應(yīng)的VLAN分配。

6GK7342-5DA00-0XE0

聯(lián)系人：郭先生
聯(lián)系電話：18971415643《優(yōu)先》
座機(jī)：027-83238871
傳真：207-61537051
QQ：810334512《優(yōu)先》

6GK7342-5DA00-0XE0

此類測(cè)試系統(tǒng)完全根據(jù)伺 服驅(qū)動(dòng)器在實(shí)際運(yùn)行中進(jìn)行測(cè)試，因此測(cè)試結(jié)論更加貼近實(shí)際情況。但 是由于許多伺服驅(qū)動(dòng)器在制造和裝配方面的特點(diǎn)，此類測(cè)試系統(tǒng)中的各 種傳感器及信號(hào)測(cè)量元件的安裝位置很難選擇。而且裝備中的其它部分 如果出現(xiàn)故障，也會(huì)給伺服驅(qū)動(dòng)器的工作狀態(tài)造成不良影響，最終影響 其測(cè)試結(jié)果。[2]

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