Configure Frame relay switch (DCE side) FRSW and on Customer end (DTE Side) R1 and R2

Steps to configure:
· Configure R1's interface Serial0/0 with the IP address 12.0.0.1/16
· Configure R2's interface Serial0/0 with the IP address 12.0.0.2/16
· Configure Frame Relay Switching on FRSW
· Configure the Frame Relay circuit between R1 and R2 using static layer 3 to layer 2 resolution
· Configure LMI type ANSI b/w R1 and FRSW
· Configure LMI type Cisco b/w FRSW and R2

Configuration:

FRSW
frame-relay switching
!
interface Serial1
no ip address
encapsulation frame-relay
keepalive 15
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 102 interface Serial2 201
clockrate 2000000
!
interface Serial2
encapsulation frame-relay
keepalive 15
frame-relay intf-type dce
frame-relay route 201 interface Serial1 102
clockrate 64000
!
R1
interface serial 0/0
ip address 12.0.0.1 255.255.0.0
encapsulation frame-relay
frame-relay lmi-type ansi
frame-relay map ip 12.0.0.2 102 broadcast

R2
interface serial 0/0
ip address 12.0.0.1 255.255.0.0
encapsulation frame-relay
frame-relay map ip 12.0.0.1 201 broadcast

Verification:
R1
R1>ping 12.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5) 

Optimizing Port configuration

Using switchport host command on Cisco 2900, 3550, 3560 series switches is a useful way to optimize switch port for host connection. When each switch port has a single host connected to it, you can use this command instead of manually setting the correct feature for every port.
This command sets channel mode to off, enables spanning tree portfast, sets the trunk mode off and disables the 802.1q tunnel features.
Note that this command should not be enabled on ports where hubs, switches or bridges are connected because it can cause temporary switching/ bridging loops.

Switch(config)# interface fastethernet 0/1

Switch(config-if)# switchport host

Using "do" command in cisco Routers and Switches

Using privilege mode commands in global configuration mode:

Here’s a handy tip when using the show, ping, telnet or any other privilege mode commands. Instead of switching back and forth between global configuration mode and privilege mode to use these commands, you can remain in global configuration mode and type the do with original syntax.

For example:

Router(config)# do show running-config

Pinging multiple IP addresses with the tcl script

You can use the tcl script to ping multiple IP addresses from the router. The following is an example of pinging IP address 192.168.26.1, 192.168.25.1 and 192.168.17.2
Router# tclsh
Router(tcl)# foreach addr {
Router(tcl)# 192.168.26.1
Router(tcl)# 192.168.25.1
Router(tcl)# 192.168.17.2
Router(tcl)# } {ing $addr re 10 si 1500
Router(tcl)# }

After completion of task use “exit” command to come out of the tcl mode.