Do layer 2 switches and layer 3 routers have SVI? I know layer 3 switches have the SVI feature, which allow us to assign an IP address to a VLAN interface. How about layer 2 switches and layer 3 routers? Do they have SVI? Correct me if I'm wrong, I don't think Cisco make pure...
Do layer 2 switches and layer 3 routers have SVI? I know layer 3 switches have the SVI feature, which allow us to assign an IP address to a VLAN interface. How about layer 2 switches and layer 3 routers? Do they have SVI? Correct me if I'm wrong, I don't think Cisco make pure...
Layer 3 switches can perform on the OSI model’s Layer 2 and Layer 3. The Layer 3 switching functionality can take either of two forms: Cut-through switches –will only look into the first packet of a series of packets to determine its logical Layer 3 destination IP address and then shif...
1. 创建vlan 10 2. interface vlan 10 3. ip add access:接终端(1个vlan) trunk:承接vlan 当一条链路,需要承载多条VLAN信息的时候,需要使用trunk来实现 一般见于交换机之间或交换机与路由器之间 Trunk的配置 配置Trunk封装方式 interface f0/15 switchport trunk encapsulation {isl|dot1q} 开启端口trunk模式 s...
这里面的layer1 layer2指的应该是一层和二层,物理层和链路层.
下面是CCNA的一个考题,整句话倒是什么意思呢.As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen? 扫码下载作业帮拍照答疑一拍即得 答案解析 查看更多优质解析 举报 在一个框架离开...
Hi What difference are there between Etherchannel layer 2 & layer 3?and where layer 2 is used and where layer 3 is used and Anything about advantage and dis-advantage of these methods. Thanks in advance 4 people had this problem I have this problem too Labels: LAN Switching ...
首先确定向主机位借出多少比特位才够 30 个子网, 发现 2 的 5 次方 -2=30 ,那么就确定了需要向主机位借出 5个比特位,新的子网掩码就是 255.255.255.248 ,每个子网的主机数 2的3(8-5)次方 -2=6 ,有效子网间隔 256-248=8 那么 192.168.1.8 就是有效地子网间隔。
【CCNA】4.OSI Layer3 网络层,Mac编址存在的问题在之前的博客中提到,2层数据链路层中,我们是通过mac地址来进行编址的。而这中方式会有如下三个问题:1.所有的设备处在同一个广域网中(这样信息就不安全)2.设备定位查找麻烦3.难以对设备进行区分...
The reason it's possible is that Layer 3 switches have come down in price a lot. Back in the day, Layer 3 switches were a lot more expensive than Layer 2 switches. Your Access Layer switches were where you had the high port count and where you had all of your hosts plugged in. So...