What is Iplink?
In IPMP terminology, an IP link is a communication facility or medium over which nodes can communicate at the data-link layer of the Internet protocol suite. Types of IP links might include simple Ethernets, bridged Ethernets, hubs, or Asynchronous Transfer Mode (ATM) networks.
What does ip Link add do?
ip link add – add virtual link link DEVICE specifies the physical device to act operate on. NAME specifies the name of the new virtual device. TYPE specifies the type of the new device.
Which command will show you the interface used to reach an external address?
I use netstat -Wcatnp . You should try this command.
How do you make a Veth pair?
A pair can be created using the command: # ip link add type veth peer name In the above, p1-name and p2-name are the names assigned to the two connected end points. Packets transmitted on one device in the pair are immediately received on the other device.
What is the netmask?
A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s. In this way, the subnet mask separates the IP address into the network and host addresses. The “255” address is always assigned to a broadcast address, and the “0” address is always assigned to a network address.
What is a virtual bridge?
A virtual bridge (vBridge) acts as a “virtual” Ethernet segment contained entirely within the software of a VM host. The virtual NIC (vNIC) devices on that host’s VMs can each be assigned to one of the VM host’s vBridges as if they were physically connected to a LAN.
Which command displays a brief summary of the current interfaces interface status and the IP addresses assigned to them?
IOS command #2: Show IP interface brief The show IP interface brief command gives you the answers to these questions and is the best summary of the status, protocol and IP addresses of your interfaces. This command can be used in both User EXEC and Privileged EXEC mode. This command can be abbreviated sh ip int brie.
What is a MacVLAN?
Introduction to MacVLAN At first glance, MacVLAN is a very lightweight driver because rather than using any kind of Linux bridging or port mapping technology, it is mainly used to connect container interfaces directly with host interfaces.
What is Veth peer?
The veth devices are virtual Ethernet devices. They can act as tunnels between network namespaces to create a bridge to a physical network device in another namespace, but can also be used as standalone network devices. veth devices are always created in interconnected pairs.
What ARP means?
Address Resolution Protocol (ARP) is a protocol or procedure that connects an ever-changing Internet Protocol (IP) address to a fixed physical machine address, also known as a media access control (MAC) address, in a local-area network (LAN).
What is netmask and gateway?
The subnet mask splits the IP address into the host and network addresses, thereby defining which part of the IP address belongs to the device and which part belongs to the network. The device called a gateway or default gateway connects local devices to other networks.
How do I use a netmask?
A Netmask is a 32-bit “mask” used to divide an IP address into subnets and specify the network’s available hosts. In a netmask, two bits are always automatically assigned. For example, in 255.255….What is a Netmask?
| IP | NETMASK | DESCRIPTION |
|---|---|---|
| 192.168.55.161 | 255.255.255.255 | Only applies to 192.168.55.161 |
What is erspan and how does it work?
ERSPAN is an acronym that stands for encapsulated remote switched port analyzer. ERSPAN mirrors traffic on one or more “source” ports and delivers the mirrored traffic to one or more “destination” ports on another switch.
What is encapsulated remote span (erspan)?
Encapsulated remote SPAN (ERSPAN) brings generic routing encapsulation (GRE) for all captured traffic and allows it to be extended across Layer 3 domains. ERSPAN is a Cisco proprietary feature and is available only to Catalyst 6500, 7600, Nexus, and ASR 1000 platforms to date.
What is an erspan Port Analyzer?
Here’s a quick overview. ERSPAN is an acronym that stands for encapsulated remote switched port analyzer. ERSPAN mirrors traffic on one or more “source” ports and delivers the mirrored traffic to one or more “destination” ports on another switch.
What is the difference between span and RSPAN?
SPAN destination. Remote SPAN (RSPAN) is similar to SPAN, but it supports source ports, source VLANs, and destination ports on different switches, which provide remote monitoring traffic from source ports distributed over multiple switches and allows destination centralize network capture devices.