What command will show you the MAC address table aging time?
What command will show you the MAC address table aging time?
Use the display mac-address aging-time command to display the aging time of dynamic entries in the MAC address table.
What is the MAC address in multicast?
The multicast MAC address is a special value that begins with 01-00-5E in hexadecimal. The remaining portion of the multicast MAC address is created by converting the lower 23 bits of the IP multicast group address into 6 hexadecimal characters.
What does show MAC address table do?
The MAC address table contains address information that the Switch uses to forward traffic between the inbound and outbound ports. All MAC addresses in the address table are associated with one or more ports.
Can you give me an overview of IP multicast?
IP multicast is a method of sending Internet Protocol (IP) datagrams to a group of interested receivers in a single transmission. It is the IP-specific form of multicast and is used for streaming media and other network applications. It uses specially reserved multicast address blocks in IPv4 and IPv6.
How do I find the MAC address of a broadcast?
As shown in the figure, a broadcast IP address for a network needs a corresponding broadcast MAC address in the Ethernet frame. On Ethernet networks, the broadcast MAC address is 48 ones displayed as hexadecimal FF-FF-FF-FF-FF-FF.
What is MAC address FF FF FF FF FF FF?
The MAC address used for broadcast (broadcast MAC address) is ff:ff:ff:ff:ff:ff. Broadcast MAC address is a MAC address consisting of all binary 1s. Broadcast is “one to all” type of communication. In other words; “send once receive all”.
How do you examine a MAC address table?
To display the MAC table, enter the show mac-address command. In the output of the show mac-address command, the Type column indicates whether the MAC entry is static or dynamic.
What is the difference between MAC table and ARP table?
A MAC table maps Ethernet hardware addresses to switch ports. An ARP table maps IP addresses to Ethernet hardware addresses.
What is default aging time for ARP table?
10 minutes
The default ARP aging is 10 minutes.
How many views does a multicast MAC address have?
Multicast mac addresses 4956 Views 0 Helpful 5 Replies chris.smailes Beginner Mark as New Bookmark Subscribe Mute Subscribe to RSS Feed Permalink Print Email to a Friend Report Inappropriate Content 10-29-201006:48 AM 10-29-201006:48 AM Multicast mac addresses Hello All,
What type of MAC addresses can I enter into the table?
You can also enter a MAC address, which is termed a static MAC address, into the table. These static MAC entries are retained across a reboot of the switch. In addition, you can enter a multicast address as a statically configured MAC address.
What is the 24-bit MAC address prefix for multicast?
The 24-bit MAC address prefix 01-00-5E is reserved for layer 2 multicast. Unfortunately only half of the MAC addresses in this 24-bit prefix can be used for multicast, this means we only have 23 bits of MAC address space to use for multicast.
What is an example of a multicast IP?
For example, a host that listens to the 239.1.1.1 multicast IP address will configure its network card to listen to MAC address 01-00-5E-01-01-01. If someone else is streaming to the 224.1.1.1 multicast IP address it will also end up at our host because the MAC address is the same.