Лабораторная по полносвязной Frame Relay сети
Используется следующая топология:
Для full-mesh сети создаем необходимое количество VLC и задаем маппинг.
Задаем минимальную конфигурацию маршрутизаторов. Для полносвязной сети используем адреса серийных интерфейсов из одной подсети.
R1#sh run ! interface Serial0/0 ip address 192.168.1.1 255.255.255.0 encapsulation frame-relay clock rate 2000000 end ! R1
Аналогично настраиваем два оставшихся маршрутизатора. Проверяем коннективити:
R1#ping 192.168.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/78/152 ms
R1#ping 192.168.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 24/94/200 ms R1#
R2#ping 192.168.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/74/132 ms R2#
Посмотрим на детали соединения:
R1# R1#sh 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 C 192.168.1.0/24 is directly connected, Serial0/0 R1# R1#sh frame-relay pvc PVC Statistics for interface Serial0/0 (Frame Relay DTE) Active Inactive Deleted Static Local 2 0 0 0 Switched 0 0 0 0 Unused 0 0 0 0 DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0 input pkts 18 output pkts 17 in bytes 1662 out bytes 1628 dropped pkts 0 in pkts dropped 0 out pkts dropped 0 out bytes dropped 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 2 out bcast bytes 68 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec pvc create time 00:38:34, last time pvc status changed 00:37:34 DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0 input pkts 8 output pkts 7 in bytes 622 out bytes 588 dropped pkts 0 in pkts dropped 0 out pkts dropped 0 out bytes dropped 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 2 out bcast bytes 68 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec pvc create time 00:38:35, last time pvc status changed 00:37:35 R1# R1#sh frame-relay map Serial0/0 (up): ip 192.168.1.2 dlci 102(0x66,0x1860), dynamic, broadcast, CISCO, status defined, active Serial0/0 (up): ip 192.168.1.3 dlci 103(0x67,0x1870), dynamic, broadcast, CISCO, status defined, active R1#
Настроим статический маппинг:
R1#sh run int s0/0 ! interface Serial0/0 ip address 192.168.1.1 255.255.255.0 encapsulation frame-relay clock rate 2000000 frame-relay map ip 192.168.1.3 103 broadcast frame-relay map ip 192.168.1.2 102 broadcast no frame-relay inverse-arp end R1# R2#sh run int s0/0 ! interface Serial0/0 ip address 192.168.1.2 255.255.255.0 encapsulation frame-relay clock rate 2000000 frame-relay map ip 192.168.1.3 103 broadcast frame-relay map ip 192.168.1.1 101 broadcast no frame-relay inverse-arp end R2#
R3#sh run int s0/0 ! interface Serial0/0 ip address 192.168.1.3 255.255.255.0 encapsulation frame-relay clock rate 2000000 frame-relay map ip 192.168.1.2 102 broadcast frame-relay map ip 192.168.1.1 101 broadcast no frame-relay inverse-arp end
R3#
Пингом проверяем коннективити, все должно работать.
