Switching path delays are introduced because of the translation of each ip address within the packet headers 因?yàn)獒槍?duì)每一個(gè)封包標(biāo)頭的ip地址進(jìn)行轉(zhuǎn)換,所以會(huì)帶來(lái)一些交換路徑的延遲。
Pdcp module aims at saving wireless resources with compressing the redundant information in the packet header Pdcp模塊的主要功能是利用數(shù)據(jù)包頭部的冗余信息對(duì)其進(jìn)行壓縮,以節(jié)約無(wú)線資源。
The icmp echo request failed because a node router or gateway encountered problems while processing the packet header 由于節(jié)點(diǎn)(路由器或網(wǎng)關(guān))在處理數(shù)據(jù)包標(biāo)頭時(shí)遇到問(wèn)題, icmp回送請(qǐng)求失敗。
As gateways and routers transmit packets through a network , they decrement the current time - to - live value found in the packet header 當(dāng)網(wǎng)關(guān)和路由器通過(guò)網(wǎng)絡(luò)傳輸數(shù)據(jù)包時(shí),它們遞減數(shù)據(jù)包標(biāo)頭中的當(dāng)前生存時(shí)間( ttl )值。
For protocol - based signature detection , packets are analyzed according to different protocols . the values of fields in the packet headers are checked , and pre - processing of packets is made when necessary 對(duì)基于協(xié)議的特征,首先按照協(xié)議的層次結(jié)構(gòu)對(duì)數(shù)據(jù)包進(jìn)行協(xié)議解析,檢查協(xié)議中各字段的屬性值,必要時(shí)對(duì)數(shù)據(jù)包進(jìn)行一定的預(yù)處理。