拓扑图如下：
首先做下帧中继交换机的配置：
FRSwitch:
frame-relay switching
interface s1/0
encapsulation frame-relay
no shut
frame-relay intf-type dce
frame-relay lmi-type cisco
clock rate 64000
interface s1/1
encapsulation frame-relay
no shut
frame-relay intf-type dce
frame-relay lmi-type cisco
clock rate 64000
interface s1/2
encapsulation frame-relay
no shut
frame-relay intf-type dce
frame-relay lmi-type cisco
clock rate 64000
interface s1/3
encapsulation frame-relay
no shut
frame-relay intf-type dce
frame-relay lmi-type cisco
clock rate 64000
接下来，我们要配置frame-relay route用来定义接口上DLCI并与对端DLCI形成一个PVC
interface s1/0
frame-relay route 102 interface s1/1 100
frame-relay route 103 interface s1/2 130
interface s1/1
frame-relay route 100 interface s1/0 102
interface s1/2
frame-relay route 130 interface s1/0 103
帧中继交换机的配置我们已经结束
R1：
interface lo0
ip address 1.1.1.1 255.255.255.0
no shut
exit
interface s1/0
no shut
encapsulation frame-relay
no ip address
interface s1/0.1 multipoint
ip address 192.168.1.101 255.255.255.0
no shut
frame-relay map ip 192.168.1.101 101
frame-relay map ip 192.168.1.102 102 broadcast
frame-relay map ip 192.168.1.103 103 broadcast
用来将IP和DLCI进行一个映射
EIGRP的配置：
router eigrp 90
network 192.168.1.0 0.0.0.255
network 1.1.1.1 0.0.0.0
no auto-summary
eigrp router-id 1.1.1.1
R2：
interface lo0
ip address 2.2.2.2 255.255.255.0
no shut
exit
interface s1/0
encapsulation frame-relay
no shut
no ip address
interface s1/0.1 multipoint
ip add 192.168.1.102 255.255.255.0
no shut
frame-relay map ip 192.168.1.102 100 broadcast
exit
router eigrp 90
network 192.168.1.0 0.0.0.255
network 2.2.2.2 0.0.0.0
no auto-summary
eigrp router-id 2.2.2.2
R3:
interface lo0
ip address 3.3.3.3 255.255.255.0
no shut
exit
interface s1/0
encapsulation frame-relay
no shut
no ip address
interface s1/0.1 multipoint
ip address 192.168.1.103 255.255.255.0
no shut
frame-relay map ip 192.168.1.103 130 broadcast
router eigrp 90
network 192.168.1.0 0.0.0.255
network 3.3.3.3 0.0.0.0
no auto-summary
eigrp router-id 3.3.3.3
验证结果：
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
2.0.0.0/24 is subnetted, 1 subnets
D 2.2.2.0 [90/2297856] via 192.168.1.102, 00:28:40, Serial1/0.1
3.0.0.0/24 is subnetted, 1 subnets
D 3.3.3.0 [90/2297856] via 192.168.1.103, 00:28:40, Serial1/0.1
C 192.168.1.0/24 is directly connected, Serial1/0.1
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 192.168.1.101, 00:01:15, Serial1/0.1
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, Serial1/0.1
R3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 192.168.1.101, 00:01:21, Serial1/0.1
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, Serial1/0.1
看到了吧
R2和R3上彼此的环回口网络没有回去因为水平分割的问题
所以需要在R1上的S1/0.1接口上关闭水平分割
interface s1/0.1 multipoint
no ip split-horizon eigrp 90
这样路由表就可以获取了。
这种适合帧中继全互联或局部互联的拓扑结构
下面我们来配置单点子接口的配置，适用于HUB-SPOKER拓扑结构
帧中继交换机配置同上
R1：
interface s1/0
encapsulation frame-relay
no shut
interface s1/0.2 point-to-point
ip address 192.168.2.1 255.255.255.0
no shut
frame-relay interface-dlci 102
interface s1/0.3 point-to-point
ip address 192.168.3.1 255.255.255.0
no shut
frame-relay inteface-dlci 103
interface lo0
ip address 1.1.1.1 255.255.255.0
no shut
router eigrp 90
network 192.168.2.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 1.1.1.1 0.0.0.0
no auto-summary
eigrp router-id 1.1.1.1
R2:
interface lo0
ip address 2.2.2.2 255.255.255.0
no shut
interface s1/0
encapsulation frame-relay
no shut
interface s1/0.2
ip address 192.168.2.2 255.255.255.0
no shut
frame-relay interface-dlci 100
router eigrp 90
network 192.168.2.0 0.0.0.255
network 2.2.2.2 0.0.0.0
no auto-summary
eigrp router-id 2.2.2.2
R3:
interface lo0
ip address 3.3.3.3 255.255.255.0
no shut
interface s1/0
encapsulation frame-relay
no shut
interface s1/0.3
ip address 192.168.3.3 255.255.255.0
no shut
frame-relay interface-dlci 130
router eigrp 90
network 192.168.3.0 0.0.0.255
network 3.3.3.3 0.0.0.0
no auto-summary
eigrp router-id 3.3.3.3
呵呵，配置结束。不用配置水平分割，就可以获取所有的路由条目
