判断题Qos技术汇中的简单流分类是指采用简单的规则,比如ip报文中的DSCP值.MPLS报文中的EXP值.VLAN报文头中的802.1p值对报文进行简单的分类。A对B错
判断题
Qos技术汇中的简单流分类是指采用简单的规则,比如ip报文中的DSCP值.MPLS报文中的EXP值.VLAN报文头中的802.1p值对报文进行简单的分类。
A
对
B
错
参考解析
解析:
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相关考题:
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Which two QoS classification and marking statements are true? ()A、 In a Frame Relay network, delay sensitive traffic is tagged with the discard eligible (DE) bit.B、 In an MPLS network, the three most significant bits of the DSCP or the IP precedence of the IP packet are copied into the MPLS EXP field.C、 In an MPLS network, the MPLS EXP bits are used to identify up to 16 CoS values.D、 The differentiated services code point (DSCP) field consists of the first three bits of the IP precedence field in the header of an IP packet.E、 The 802.1Q standard uses a three bit field referred to as the user priority bits (PRI) to mark packets as belonging to a specific CoS.
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多选题如下描述中,QOS对于MPLS标签中EXP字段的处理的原则正确的是()A给IP报文封装MPLS标签时,直接将IP报文的TOS字段转换成MPLS标签的EXP字段B标签交换(swap)操作时,EXP字段保持不变C标签压栈(push)操作时,新压入的外层标签EXP字段继承内层标签的EXP字段D标签弹栈(pop)操作时,如果弹栈之后是MPLS报文,不会将弹出标签的EXP字段复制到内层标签上;如果弹栈之后为IP报文,不会将EXP字段复制到IP报文的TOS字段
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