基于端口的VLAN与网桥转发策略的区别的不同点有()

A:如果进来的MAC帧是untagged将PVID添入该帧 B:不是只根据MAC帧的目的地址来查找输出端口号,而是根据目的地址+VID来决定转发目的端口 C:直接根据MAC地址进行ARP解析并转发 D:在从目的端口输出时,要根据该是untagged还是tagged来决定是不是将vid从MAC桢剥离

在EPONOLT中如果启用了灵活QINQ,对于reservevLAN的说法错误的是()。

A:reservev LAN必须以UNTAgged的方式加入到上联口 B:reservev LAN必须事先规划好 C:reservev LAN就是svLA D:业务vLAN不能与reservevLAN一样

配置ONU的VLAN模式时,一共有几种()模式

A:TrANSPAreNT(透传) B:TAg C:TrANSLATION(交换) D:UNTAgged

在一个以太网交换网络环境中,以太网帧有哪两种格式。()

A:untagged frame B:令牌帧 C:tagged frame D:FDDI帧

交换机命令show interfaces type0/port_#switchport|trunk用于显示中继连接的配置情况,下面是显示例子:
2950#show interface fastEthernet0/1 switchport
Name: fa0/1
Switchport: EnabledA.VLAN0 B.VLAN1 C.VLAN2 D.VLAN3

A:Administrative mode: trunk B:Operational Mode: trunk C:Administrative Trunking Encapsulation: dotlq D:Operational Trunking Encapsulation: dotlq E:egotiation of Trunking: disabled F:Access Mode VLAN: 0((inactive)) G:Trunking Native Mode VLAN: 1(default) H:Trunking VLANs Enabled: all I:Trunking VLANs active: 1, 2 J:Pruning VLANs Enabled: 2-1001 K:Priority for untagged frames: 0 L:Override vlan tag priority: FALSE M:Voice VLAN: none N:在这个例子中,端口fa0/1的链路模式被设置为______状态,默认的vlan是______。

交换机命令show interfaces type0/port_# switchport|trunk用于显示中继连接的配置情况,下面是显示例子:
2950#show interface fastEthernet0/1 switchport
Name:fa0/1
Switchport:Enabled
Admini strat ive mode:trunk
Operat ional Mode:trunk
Administrative Trunking Encapsulation:dotlq
Operational Trunking Encapsulation:dotlq
egotiation of Trunking:disabled
AccesS Mode VLAN:0((inactive))
Trunking Native Mode VLAN:1(default)
Trunking VLANs Enabled:all
Trunking VLANs active:1,2
Pruning VLANs Enabled:2-1001
Priority for untagged frames:0
Override vlan tag priority:FALSE
Voice VLAN:none
在这个例子中,端口fa0/1的链路模式被设置为______状态,默认的vlan是______。

A:Desirable B:No-Negoriate C:Autonegotiate D:trunk

交换机命令show interfaces type0/port_# switchport|trunk用于显示中继连接的配置情况,下面是显示例子:
2950#show interface fastEthernet0/1 switchport
Name:fa0/1
Switchport:Enabled
Admini strat ive mode:trunk
Operat ional Mode:trunk
Administrative Trunking Encapsulation:dotlq
Operational Trunking Encapsulation:dotlq
egotiation of Trunking:disabled
AccesS Mode VLAN:0((inactive))
Trunking Native Mode VLAN:1(default)
Trunking VLANs Enabled:all
Trunking VLANs active:1,2
Pruning VLANs Enabled:2-1001
Priority for untagged frames:0
Override vlan tag priority:FALSE
Voice VLAN:none
在这个例子中,端口fa0/1的链路模式被设置为______状态,默认的vlan是______。

A:VLAN0 B:VLANl C:VLAN2 D:VLAN3

下面是显示交换机端口状态的例子: 2950# show interface fastEthernet0/1 switchport Name: fa0/1 Switchport: Enabled Administrative mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: Disabled Access Mode VLAN: 0 ((Inactive)) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Trunking VLANs Active: 1, 2 Pruning VLANs Enabled: 2-1001 Priority for untagged frames: 0 Override vlan tag priority: FALSE Voice VLAN: none
在以上显示的信息中,端口fa0/1的链路模式被设置为(67),默认的VLAN为(68)。

68()

A:VLAN0 B:VLAN1 C:VLAN2 D:VLAN3

华为交换机中,display interface vlan 命令用来查看主接口下 所有配置指定VLAN ID的子接口或untagged的子接口。

1850TSS320设备支持基于端口静态VLAN的桥接转发技术,在UNI端口上, 通常注册一个什么属性的VLAN-ID用于接收不带VLAN的以太网帧使其可在默认 的VLAN网内转发

A:any B:Untagged C:0-VLAN D:Tagged

微信扫码获取答案解析
下载APP查看答案解析