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If you are using a L3 switch, every port can be configured as a routed port which needs a MAC address. 1. When using the show version command, you will see "Base ethernet MAC address: 0007.ECE1.5D18" in the output. This is the mac address that is used in i.e STP. Normally, the vlan1 interface has this same MAC address.
Using only SW1, find out which switch is the root bridge for VLAN 12. Using only SW1, find out what the MAC Address is of the root bridge for VLAN 15. Identify the root port for all non-root bridges for VLAN 17. Identify the STP type on SW1. For VLAN 19, identify the STP blocked port in the topology Bonus Tasks
Reply. Naresh.07. Edited by Admin February 16, 2020 at 4:40 AM. Hi Armand, I usually use the website [MAC_Find: Vendor/Ethernet/Bluetooth MAC Address Lookup and Search] to find out the Vendor of the MAC address. Above website can used to check all MAC address.
The simplest way to compare two MAC addresses is to just start comparing them value by value, from left to right. Find a point where they no longer match. The MAC address with a smaller value at that position will be the lower MAC address. MAC: 0010.7bcc.73 3 a. MAC: 0010.7bcc.73 4 7 . 3 < 4, and therefore, the first MAC address is lower.
STP and other processes will use the Main MAC address, aka Burn-in-ID, aka Base MAC. this MAC is the main MAC for a switch. it is printed on sticker on the back of switch. its role is just simply to identify the switch. Cisco sets a side range of mac addresses (pool) for each switch they manufacture. they start with one address as main one ...
The "show mac address-table" command should show all the MAC addresses, STATIC and DYNAMIC ones. You shouldn't add the "dynamic" keyword to see the dynamic entries. For my second question, I have done the following: SW6#conf t. Enter configuration commands, one per line. End with CNTL/Z. SW6 (config)#.
The two modes are FXOS and FTD with the latest 6.2 software. Under FXOS the "show mac-address-table inside" doesn't exist and when I run it under the FTD mode it comes back blank. Not even the configured ports show up. The main reason this issue caught my eye is because of port security.
in our cisco 3750 switch if I run the command show mac address-table it shows the mac address table with port chaneel number (po1) not the individul interfaces (ie. gi1/0/1, gi1/0/2, etc...). what is command to show the individual interfaces. Because I need to find the interfaces that connected to the printers by using MAC addresses of the ...
Every port on a switch has got its own mac address. A switch also has something called a base MAC address which is used by Spanning Tree protocol. If you configure a VLAN interface such as interface vlan1 or interface vlan 2, that also assigns a MAC address against the SVI (Switched Virtual Interface) also called NRI (Native Routed Interface ...
1. Switch's default aging time is 300 second. after this time switch will flush out the mac address entry for the perticular ports if it don't see any traffic traversing that port. 2. on my C3750 switch it shows mac address entry for all vlan. don't know why it's not working on your switch. you can try below commands.