Frame Relay (FR) is a high-performance WAN protocol. It is a packet switching protocol that operates at the physical and data link layers of the OSI reference model. It is cost effective, involves less investment, is reliable and provides guaranteed bandwidth at any given time (CIR - Committed information rate).
Networking Essentials
Frame Relay interface types - Part 3 (Subinterface - Point-to-Point)
We will wrap up this series configuring frame relay sub interface point-to-point for the third subnet 100.100.120.0/29. Refer the fig 1.3 below.
Frame Relay interface types - Part 1 (Physical Interface)
There are several interface types on frame-relay, according on how you configure your serial interface and on what is the purpose you will achieve.
- physical interface
- subinterface multipoint
- subinterface point-to-point
TCL script to ping several routers
You can use a simple Tcl script to test connectivity between your devices:
Switch Access Port
What is a Access port on a Cisco switch.
An access port is a nontrunking, untagged single VLAN Layer 2 interface in its default configuration.
By default, a Cisco switchport is set to "dynamic desireable", meaning that if you connect a device that supports trunking, then the switchport will negotiate a trunk. By setting the port as access port it will ignore all attempts to negotiate link type. As a best practice and from security perspective it is advised to define the switch port mode.
Switch Port Configuration
You can configure individual or range of ports/interfaces on a switch with various information and settings as explained below.
Selecting Ports to Configure
We need to select one or more switch ports to configure. "Ports" are also referred as "Interfaces". To select a single switch port, Enter global config mode and type the following command.
Switch(config)# interface type module/number
What is a VLAN
What is a VLAN
VLAN or virtual Lan is a technology to virtually segregate ports into one single broadcast domain. You don’t have to configure a VLAN until your network gets so large and has so much traffic or groups of users need more security and need to be separated with rest of traffic.
VLAN or virtual Lan is a technology to virtually segregate ports into one single broadcast domain. You don’t have to configure a VLAN until your network gets so large and has so much traffic or groups of users need more security and need to be separated with rest of traffic.
Frame Relay Switch Configuration
Frame Relay is a high-performance WAN protocol that operates at the physical and data link layers of the OSI reference model.
Configuring a router as frame relay switch
You may be asked to configure a router as a frame relay switch in CCIE lab exam.
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