Please describe how link-layer switch works (self-leaming, filtering. forwarding).相关知识点: 试题来源: 解析 交换机通过自学习建立转发表(2)。当交换机接收到一帧,首先根据帧得MAC地址,查找转发表。如果帧的MAC地址在转发表中,并且不是去往接收了此帧的接口,则转发到相应的目的接口(3);如果目的MAC地址的...
Layer 2 Switch Moduleing A Layer 2 device works at the second layer of the OSI model and forwards data packets based on media access control (MAC) addresses. Ports on a Layer 2 device send and receive data independently and belong to different collision domains. Collision domains are isolated...
ERPS eliminates loops at the link layer of an Ethernet network. ERPS works for ERPS rings. There are several nodes in an ERPS ring. ERPS blocks the RPL owner port and controls common ports to switch the port status between Forwarding and Discarding and eliminate loops. ERPS uses the control...
Basic OSPFV2 Function Huawei command Cisco command On the all Switches, configure IP addresses on the virtual layer 3 interfaces (e.g. with Switch A) system-view [Quidway_A] interface vlanif 10 [Quidway_A-Vlanif10] ip address 192.168.0.1 255.255.255.0 [Quidway_A-Vlanif10] quit [Quidway...
The Spanning Tree Protocol (STP) is a networking standard designed specifically to prevent loops in Layer 2 switching, and to select the fastest network path if there are redundant links in the network. Here's how STP works: First, all of the switches in the STP domain elect a root bridge...
Switches operating on Layer 2 identify a device by its Media Access Control (MAC) address, a code that’s part of the device’s network interface card (NIC). When a data packet enters the switch, the switch reads the MAC address in the header and sends the packet out through the ...
Therefore, only a local subnet IP broadcast packet is transmitted on the segment without an ARP. If there is a Layer 2 switch between the router and the PC, which is true for most networks today, the switch does not know to which port the PC is physically connected. Only a L...
(lan). on the other hand, a router operates at the network layer (layer 3) and is responsible for connecting multiple networks together, such as lans and the internet. can i connect a switch to another switch? yes, you can connect switches together to expand your network. this is known...
A switch is a Layer 2 (data link) device with physical ports and that the switch communicates via frames that are placed on to the wire at Layer 1 (physical). A router is a Layer 3 (network) device that communicates with other routers with the use of packets, which in turn are encap...
That works and as long as it fits your needs I don't think there is too much wrong with that. You are correct no trunk required. If you use a trunk to pfsense then you are not doing layer 3 on your switch. Pfsense is doing the layer 3 and your switch is doing layer 2.C...