Download Frame Relay Lab

Frame Relay Lab
Hub and Spoke: Multipoint
Headquarters
Hub City
172.25.10.1
172.25.1.1
DLCI 100
DLCI 200
Multipoint
subinterface
172.25.0.0/24
S0
Frame Relay
Network
S1
S2
Frame Switch
Interfaces
DLCI 101
DLCI 201
172.25.1.2
172.25.1.3
Point-to-point
subinterfaces
172.25.20.1
Satellite Office 1
Spokane
172.25.30.1
Satellite Office 2
Spokomo
Note: If not using Cisco IOS 11.2 or later, be sure to configure the LMI type on each
serial interface.
Multipoint subinterfaces on the HubCity router:




Multipoint interface on the hub router is used when hub and spoke routers are on the
same subnet.
Spoke routers must use point-to-point subinterfaces, as there will be no way to map
routes in the routing table with dlci’s.
Without point-to-point subinterfaces, all networks will show in the spoke routers’
routing tables, but they will not be able to ping interfaces on those networks.
Split Horizon must be disabled on the Hub router.
Router HubCity (DTE)
version 12.0
!
hostname HubCity
!
interface Serial0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
!
interface Serial0.1 multipoint
ip address 172.25.1.1 255.255.255.0
no ip split-horizon
frame-relay interface-dlci 100
frame-relay interface-dlci 200
!
interface FastEthernet0
ip address 172.25.10.1 255.255.255.0
no ip directed-broadcast
no keepalive
!
router rip
network 172.25.0.0
!
Router Spokane (DTE)
version 12.0
!
hostname Spokane
!
interface Serial0
no ip address
encapsulation frame-relay
frame-relay lmi-type ansi
!
interface Serial0.1 point-to-point
ip address 172.25.1.2 255.255.255.0
no ip directed-broadcast
frame-relay interface-dlci 101
!
interface FastEthernet0
ip address 172.25.20.1 255.255.255.0
no ip directed-broadcast
no keepalive
!
router rip
network 172.25.0.0
!
Router Spokomo (DTE)
version 12.0
!
hostname Spokomo
!
interface Serial0
no ip address
encapsulation frame-relay
!
interface Serial0.1 point-to-point
ip address 172.25.1.3 255.255.255.0
frame-relay interface-dlci 201
!
interface FastEthernet0
ip address 172.25.30.1 255.255.255.0
no ip directed-broadcast
no keepalive
!
router rip
network 172.25.0.0
!
Frame Relay Switch (DCE)
version 12.0
!
hostname FrameSwitchE
!
frame-relay switching
!
interface Serial0
no ip address
encapsulation frame-relay
clockrate 56000
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 100 interface Serial1 101
frame-relay route 200 interface Serial2 201
!
interface Serial1
no ip address
encapsulation frame-relay
clockrate 56000
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 101 interface Serial0 100
!
Frame Relay Switch (continued)
interface Serial2
no ip address
encapsulation frame-relay
clockrate 56000
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 201 interface Serial0 200
Notes:
1. A router is not normally used as a Frame Relay switch. This feature is typically sued
in test and demonstration situations.
2. Loopback interface can be used to simulate actual physical interfaces.
3. The Frame Relay switch is acting as the DCE device, which would be a normal
situation.
1. Examine the FrameSwith router:
FrameSwitchE#show frame-relay route
Input Intf
Input Dlci
Output Intf
Serial0
100
Serial1
Serial0
200
Serial2
Serial1
101
Serial0
Serial2
201
Serial0
Output Dlci
101
201
100
200
Status
active
active
active
active
2. Each router should see every network and be able to ping each network. On each of
the routers perform the following commands:
HubCity
HubCity#show frame-relay map
Serial0.1 (up): ip 172.25.1.2 dlci 100(0x64,0x1840), dynamic,
broadcast,, status defined, active
Serial0.1 (up): ip 172.25.1.3 dlci 200(0xC8,0x3080), dynamic,
broadcast,, status defined, active
HubCity#show frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
Local
Switched
Unused
Active
2
0
0
Inactive
0
0
0
Deleted
0
0
0
Static
0
0
0
DLCI = 100, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
Serial0.1
input pkts 140
output pkts 77
in bytes 24656
out bytes 7774
dropped pkts 0
in FECN pkts 0
in BECN pkts 0
out FECN pkts 0
out BECN pkts 0
in DE pkts 0
out DE pkts 0
out bcast pkts 69
out bcast bytes 7038
pvc create time 00:31:06, last time pvc status changed 00:30:36
DLCI = 200, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
Serial0.1
input pkts 128
output pkts 103
in bytes 18760
out bytes 11810
dropped pkts 0
in FECN pkts 0
in BECN pkts 0
out FECN pkts 0
out BECN pkts 0
in DE pkts 0
out DE pkts 0
out bcast pkts 72
out bcast bytes 8594
pvc create time 00:31:07, last time pvc status changed 00:30:37
HubCity#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP
Gateway of last resort is not set
R
R
C
C
172.25.0.0/24 is subnetted, 4 subnets
172.25.20.0 [120/1] via 172.25.1.2, 00:00:06, Serial0.1
172.25.30.0 [120/1] via 172.25.1.3, 00:00:02, Serial0.1
172.25.1.0 is directly connected, Serial0.1
172.25.10.0 is directly connected, FastEthernet0
HubCity#ping 172.25.20.1
Sending 5, 100-byte ICMP Echos to 172.25.20.1, timeout is 2 seconds:
!!!!!
HubCity#ping 172.25.30.1
Sending 5, 100-byte ICMP Echos to 172.25.30.1, timeout is 2 seconds:
!!!!!
Spokane
Spokane#show frame-relay map
Serial0.1 (up): point-to-point dlci, dlci 101(0x65,0x1850), broadcast
status defined, active
Spokane#show frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
Local
Switched
Unused
Active
1
0
0
Inactive
0
0
0
Deleted
0
0
0
Static
0
0
0
DLCI = 101, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
Serial0.1
input pkts 58
output pkts 65
in bytes 6252
out bytes 9602
dropped pkts 0
in FECN pkts 0
in BECN pkts 0
out FECN pkts 0
out BECN pkts 0
in DE pkts 0
out DE pkts 0
out bcast pkts 55
out bcast bytes 8562
pvc create time 00:20:34, last time pvc status changed 00:20:34
Spokane#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP,
Gateway of last resort is not set
C
R
C
R
172.25.0.0/24 is subnetted, 4 subnets
172.25.20.0 is directly connected, FastEthernet0
172.25.30.0 [120/2] via 172.25.1.1, 00:00:05, Serial0.1
172.25.1.0 is directly connected, Serial0.1
172.25.10.0 [120/1] via 172.25.1.1, 00:00:05, Serial0.1
Spokane#ping 172.25.10.1
Sending 5, 100-byte ICMP Echos to 172.25.10.1, timeout is 2 seconds:
!!!!!
Spokane#ping 172.25.30.1
Sending 5, 100-byte ICMP Echos to 172.25.30.1, timeout is 2 seconds:
!!!!!
Spokomo
Spokomo#show frame-relay map
Serial0.1 (up): point-to-point dlci, dlci 201(0xC9,0x3090), broadcast
status defined, active
Spokomo#show frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
Local
Switched
Unused
Active
1
0
0
Inactive
0
0
0
Deleted
0
0
0
Static
0
0
0
DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
Serial0.1
input pkts 59
output pkts 78
in bytes 6484
out bytes 9496
dropped pkts 0
in FECN pkts 0
in BECN pkts 0
out FECN pkts 0
out BECN pkts 0
in DE pkts 0
out DE pkts 0
out bcast pkts 63
out bcast bytes 7936
pvc create time 00:19:30, last time pvc status changed 00:19:30
Spokomo#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP
Gateway of last resort is not set
R
C
C
R
172.25.0.0/24 is subnetted, 4 subnets
172.25.20.0 [120/2] via 172.25.1.1, 00:00:18, Serial0.1
172.25.30.0 is directly connected, FastEthernet0
172.25.1.0 is directly connected, Serial0.1
172.25.10.0 [120/1] via 172.25.1.1, 00:00:18, Serial0.1
Spokomo#ping 172.25.10.1
Sending 5, 100-byte ICMP Echos to 172.25.10.1, timeout is 2 seconds:
!!!!!
Spokomo#ping 172.25.20.1
Sending 5, 100-byte ICMP Echos to 172.25.20.1, timeout is 2 seconds:
!!!!!