Switches deliver Ethernet frames to host devices identified by network interface card MAC addresses. Switches are used to interconnect and deliver information to computers on local area networks. The way a switch operates has implications for network administrators whose job it is to ensure secure and consistent network communication. It is important to observe and understand the function of a switch and how it delivers data on the network. If the MAC address is unknown, then the frame is broadcasted out of all switch ports, except the one from which it came. If the destination MAC address is a known address, then the frame is forwarded out of the corresponding switch port associated with that MAC address. Then the destination MAC address is looked up in the MAC address table. The source MAC address is recorded and mapped to the switch port from which it arrived. When a switch receives a frame from a PC, it examines the frame’s source and destination MAC addresses. This process is called building the MAC address table. The switch records host MAC addresses that are visible on the network, and maps those MAC addresses to its own Ethernet switch ports.
The purpose of a Layer 2 LAN switch is to deliver Ethernet frames to host devices on the local network. Part 2: Examine the Switch MAC Address Table Background / Scenario Hardware is Ethernet SVI, address is 000c.85f5.0ebf (bia Updated on Januby Admin 5.2.1.7 Lab – Viewing the Switch MAC Address Table Answers Lab – Viewing the Switch MAC Address Table ( Answers Version)Īnswers Note: Red font color or Gray highlights indicate text that appears in the instructor copy only. The mac address which i was tracing is assigned to vlan not any switch port.Īs i can see on switch this mac is assigned to all SVI. (The mac address will be in the table, but the ip may not be in arp cache.) Then you can come back to this switch to look up the mac address in the table. You won't see it in your arp table necessarily which means you'll need to get the mac address entry from the core switch. The one problem that you may have is that if you're switch doesn't have the subnet physically on it, the switch will send the request to it's default gateway. I then repeat the process of pinging the address to get it in the arp table, and then match that mac up with the mac address table.
I know that g2/48 connects to a stack of switches. If you run into a situation that you find the mac address on a trunk port, you need to figure out what switch connects to that port: You'll need to do this on all of your switches until you find it. Eventually, you'll get to a physical port number: If you have 3 switches, you'll telnet into each of them and ping this IP. You'll have to track down each switch that you have interconnected. Need to know how can i go further from here +-+-+-+-Ģ7 000c.85f5.0ebf static ip,ipx,assigned,other SwitchĢ9 000c.85f5.0ebf static ip,ipx,assigned,other Switchģ7 000c.85f5.0ebf static ip,ipx,assigned,other Switchģ8 000c.85f5.0ebf static ip,ipx,assigned,other Switchġ07 000c.85f5.0ebf static ip,ipx,assigned,other Switchġ56 000c.85f5.0ebf static ip,ipx,assigned,other SwitchĢ54 000c.85f5.0ebf static ip,ipx,assigned,other Switchģ16 000c.85f5.0ebf static ip,ipx,assigned,other Switchģ18 000c.85f5.0ebf static ip,ipx,assigned,other Switchĥ04 000c.85f5.0ebf static ip,ipx,assigned,other Switchĥ14 000c.85f5.0ebf static ip,ipx,assigned,other Switch Sh mac address-table address 000c.85f5.0ebf Protocol Address Age (min) Hardware Addr Type Interface I am looking to find the mac address of IP.
0 kommentar(er)
