In questo documento viene spiegato come configurare Virtual Private Network (VPN) Multiprotocol Label Switching (MPLS) su ATM con router Cisco 7500 come Label Edge Router (LER) e switch LightStream 1010 come Label Switch Router (LSR). Due router connessi a Ethernet, ciascuno in una sede remota del cliente, fanno parte di una VPN. In questo documento vengono esaminate le configurazioni end-to-end dei dispositivi e vengono illustrati utili comandi show.
Nessun requisito specifico previsto per questo documento.
Per ulteriori informazioni sulle convenzioni usate, consultare il documento Cisco sulle convenzioni nei suggerimenti tecnici.
In questa sezione vengono presentate le informazioni necessarie per configurare le funzionalità descritte più avanti nel documento.
Il documento usa la seguente configurazione di rete:
La configurazione corrente contiene questi elementi nella terminologia VPN:
CE = Customer Edge Router
PE = Provider Edge Router
P=Router provider
L'impostazione corrente contiene questi elementi nella terminologia MPLS:
LER = Label Edge Router
LSR = Label Switch Router
TDP/LDP = Tag Distribution Protocol/Label Distribution Protocol
In questo documento vengono usate le seguenti configurazioni:
PE1 e PE2 sono i LER della nostra rete ATM.
P1 e P2 sono i LSR.
CE1 e CE2 sono router perimetrali del cliente che non sono in grado di riconoscere e non eseguono VPN o MPLS.
CE1 e CE2 sono collegati rispettivamente a PE1 e PE2 tramite Ethernet ed eseguono il protocollo RIP (Routing Information Protocol).
PE1, PE2, P1 e P2 eseguono Open Shortest Path First (OSPF) e si trovano tutti nell'area 0. OSPF è il protocollo IGP (Interior Gateway Protocol) utilizzato nella rete ATM. La commutazione dei tag viene utilizzata sulle interfacce ATM su tutti e quattro i dispositivi ATM. Il protocollo TDP (Tag Distribution Protocol) assegna i tag alle route OSPF.
PE1 e PE2 sono peer MP-BGP (Multiprotocol-Border Gateway Protocol).
Le route RIP vengono ridistribuite in MP-BGP. Route MP-BGP ridistribuite in RIP su router PE1 e PE2.
L'installazione mantiene tabelle di routing VRF separate nei router PE1 e PE2.
Il nome della VPN utilizzato in questo esempio è NEW.
CE1 |
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! version 12.1 service timestamps debug datetime msec service timestamps log datetime msec ! boot system flashow c4500-js-mz.121-5 ! ip subnet-zero ! interface Loopback0 ip address 10.1.1.1 255.255.255.0 ! interface Loopback1 ip address 10.2.2.2 255.255.255.0 ! interface Loopback2 ip address 10.3.3.3 255.255.255.0 ! interface Ethernet0 ip address 100.1.1.2 255.255.255.0 media-type 10BaseT ! router rip version 2 network 10.0.0.0 network 100.0.0.0 no auto-summary ! ip classless ! |
PE1 |
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! version 12.1 service timestamps debug uptime service timestamps log uptime ! boot system flashow slot1:rsp-jsv-mz.121-5a.bin ! ip subnet-zero ! ip vrf NEW rd 200:1 route-target export 200:1 route-target import 200:1 ip cef distributed ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface ATM2/0/0 mtu 1500 no ip address ! interface ATM2/0/0.10 tag-switching ip unnumbered Loopback0 tag-switching ip ! interface Ethernet2/1/0 ip vrf forwarding NEW ip address 100.1.1.1 255.255.255.0 ! router ospf 100 no log-adjacency-changes network 1.0.0.0 0.255.255.255 area 0 network 100.1.1.0 0.0.0.255 area 0 ! router rip version 2 network 100.0.0.0 no auto-summary ! address-family ipv4 vrf NEW version 2 redistribute bgp 200 metric 0 network 100.0.0.0 no auto-summary exit-address-family ! router bgp 200 bgp log-neighbor-changes neighbor 2.2.2.2 remote-as 200 neighbor 2.2.2.2 update-source Loopback0 no auto-summary ! address-family ipv4 vrf NEW redistribute rip no auto-summary no synchronization exit-address-family ! address-family vpnv4 neighbor 2.2.2.2 activate neighbor 2.2.2.2 send-community extended no auto-summary exit-address-family ! ip classless ! |
P1 |
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! service timestamps debug uptime service timestamps log uptime ! ip subnet-zero ! interface Loopback0 ip address 4.4.4.4 255.255.255.255 no ip directed-broadcast ! interface ATM12/0/0 ip unnumbered Loopback0 no ip directed-broadcast tag-switching ip ! interface ATM12/0/1 ip unnumbered Loopback0 no ip directed-broadcast tag-switching ip ! router ospf 100 network 4.0.0.0 0.255.255.255 area 0 ! ip classless ! |
P2 |
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! service timestamps debug uptime service timestamps log uptime ! ip subnet-zero ! interface Loopback0 ip address 3.3.3.3 255.255.255.255 no ip directed-broadcast ! interface ATM0/1/1 ip unnumbered Loopback0 no ip directed-broadcast tag-switching ip ! interface ATM0/1/3 ip unnumbered Loopback0 no ip directed-broadcast tag-switching ip ! router ospf 100 network 3.0.0.0 0.255.255.255 area 0 ! ip classless ! |
PE2 |
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! version 12.1 service timestamps debug datetime msec service timestamps log datetime msec ! boot system flashow slot0:rsp-jsv-mz.121-5a ! ip subnet-zero ! ip vrf NEW rd 200:1 route-target export 200:1 route-target import 200:1 ip cef distributed ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface FastEthernet3/0/0 ip vrf forwarding NEW ip address 110.1.1.1 255.255.255.0 half-duplex ! interface ATM3/1/0.1 tag-switching ip unnumbered Loopback0 tag-switching ip ! router ospf 100 log-adjacency-changes network 2.0.0.0 0.255.255.255 area 0 ! router rip version 2 network 110.0.0.0 no auto-summary ! address-family ipv4 vrf NEW version 2 redistribute bgp 200 metric 0 network 110.0.0.0 no auto-summary exit-address-family ! router bgp 200 bgp log-neighbor-changes neighbor 1.1.1.1 remote-as 200 neighbor 1.1.1.1 update-source Loopback0 no auto-summary ! address-family ipv4 vrf NEW redistribute rip no auto-summary no synchronization exit-address-family ! address-family vpnv4 neighbor 1.1.1.1 activate neighbor 1.1.1.1 send-community extended no auto-summary exit-address-family ! ip classless ! |
CE2 |
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! version 12.1 service timestamps debug uptime service timestamps log uptime ! boot system disk0:c7100-jo3s56i-mz.121-5.T.bin ! ip subnet-zero ! interface Loopback0 ip address 30.1.1.1 255.255.255.0 ! interface Loopback1 ip address 30.2.2.2 255.255.255.0 ! interface Loopback2 ip address 30.3.3.3 255.255.255.0 ! interface FastEthernet0/0 ip address 110.1.1.2 255.255.255.0 ! router rip version 2 network 30.0.0.0 network 110.0.0.0 no auto-summary ! |
Comandi show
Utilizzare questi comandi per verificare che la rete funzioni correttamente:
show ip route: visualizza le voci della tabella di routing IP.
show ip rip database vrf: visualizza le informazioni contenute nel database RIP per un particolare VRF.
show ip bgp vpnv4 vrf: visualizza le informazioni sull'indirizzo VPN dalla tabella BGP.
show tag-switching interfaces detail: visualizza le informazioni su una o più interfacce con la funzionalità MPLS abilitata.
show tag-switching tdp binding: visualizza le voci richieste dal database di binding di etichette LDP ATM.
show tag-switching forwarding-table vrf: controlla lo stack di etichette utilizzato per una route particolare.
L'output mostrato di seguito è il risultato dei comandi immessi sui dispositivi mostrati nel diagramma di rete. Questo output mostra che la rete funziona correttamente.
CE1
Cisco4500#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 100.0.0.0/24 is subnetted, 1 subnets C 100.1.1.0 is directly connected, Ethernet0 110.0.0.0/24 is subnetted, 1 subnets R 110.1.1.0 [120/1] via 100.1.1.1, 00:00:14, Ethernet0 10.0.0.0/24 is subnetted, 3 subnets C 10.3.3.0 is directly connected, Loopback2 C 10.2.2.0 is directly connected, Loopback1 C 10.1.1.0 is directly connected, Loopback0 30.0.0.0/24 is subnetted, 3 subnets R 30.3.3.0 [120/1] via 100.1.1.1, 00:00:14, Ethernet0 R 30.2.2.0 [120/1] via 100.1.1.1, 00:00:15, Ethernet0 R 30.1.1.0 [120/1] via 100.1.1.1, 00:00:15, Ethernet0
PE1
Cisco7500a#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 1.0.0.0/32 is subnetted, 1 subnets C 1.1.1.1 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnets O 2.2.2.2 [110/4] via 4.4.4.4, 18:17:37, ATM2/0/0.10 3.0.0.0/32 is subnetted, 1 subnets O 3.3.3.3 [110/3] via 4.4.4.4, 18:17:37, ATM2/0/0.10 4.0.0.0/32 is subnetted, 1 subnets O 4.4.4.4 [110/2] via 4.4.4.4, 18:17:37, ATM2/0/0.10 Cisco7500a#show ip route vrf NEW Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 100.0.0.0/24 is subnetted, 1 subnets C 100.1.1.0 is directly connected, Ethernet2/1/0 110.0.0.0/24 is subnetted, 1 subnets B 110.1.1.0 [200/0] via 2.2.2.2, 00:26:11 10.0.0.0/24 is subnetted, 3 subnets R 10.3.3.0 [120/1] via 100.1.1.2, 00:00:11, Ethernet2/1/0 R 10.2.2.0 [120/1] via 100.1.1.2, 00:00:11, Ethernet2/1/0 R 10.1.1.0 [120/1] via 100.1.1.2, 00:00:11, Ethernet2/1/0 30.0.0.0/24 is subnetted, 3 subnets B 30.3.3.0 [200/1] via 2.2.2.2, 00:26:12 B 30.2.2.0 [200/1] via 2.2.2.2, 00:26:12 B 30.1.1.0 [200/1] via 2.2.2.2, 00:26:12 Cisco7500a#show ip rip database vrf NEW 10.0.0.0/8 auto-summary 10.1.1.0/24 [1] via 100.1.1.2, 00:00:18, Ethernet2/1/0 10.2.2.0/24 [1] via 100.1.1.2, 00:00:18, Ethernet2/1/0 10.3.3.0/24 [1] via 100.1.1.2, 00:00:18, Ethernet2/1/0 30.0.0.0/8 auto-summary 30.1.1.0/24 redistributed [1] via 2.2.2.2, 30.2.2.0/24 redistributed [1] via 2.2.2.2, 30.3.3.0/24 redistributed [1] via 2.2.2.2, 100.0.0.0/8 auto-summary 100.1.1.0/24 directly connected, Ethernet2/1/0 110.0.0.0/8 auto-summary 110.1.1.0/24 redistributed [1] via 2.2.2.2, Cisco7500a#show ip bgp vpnv4 vrf NEW BGP table version is 17, local router ID is 1.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 200:1 (default for vrf NEW) *> 10.1.1.0/24 100.1.1.2 1 32768 ? *> 10.2.2.0/24 100.1.1.2 1 32768 ? *> 10.3.3.0/24 100.1.1.2 1 32768 ? *>i30.1.1.0/24 2.2.2.2 1 100 0 ? *>i30.2.2.0/24 2.2.2.2 1 100 0 ? *>i30.3.3.0/24 2.2.2.2 1 100 0 ? *> 100.1.1.0/24 0.0.0.0 0 32768 ? *>i110.1.1.0/24 2.2.2.2 0 100 0 ? Cisco7500a#show tag-switching interfaces Interface IP Tunnel Operational ATM2/0/0.10 Yes No Yes (ATM tagging) Cisco7500a#show tag-switching interfaces detail Interface ATM2/0/0.10: IP tagging enabled TSP Tunnel tagging not enabled Tagging operational Tagswitching turbo vector MTU = 4470 ATM tagging: Tag VPI = 1 Tag VCI range = 33 - 65535 Control VC = 0/32 Cisco7500a#show tag-switching ? atm-tdp ATM Tagging Protocol information cos-map Show Tag CoS ATM Multi-VC CoS Map forwarding-table Show the Tag Forwarding Information Base (TFIB) interfaces Show per-interface tag switching prefix-map Show Tag CoS Prefix Map tdp Tag Distribution Protocol information Cisco7500a#show tag-switching tdp bindings tib entry: 1.1.1.1/32, rev 2 local binding: tag: imp-null tib entry: 2.2.2.2/32, rev 23 local binding: tag: 27 tib entry: 3.3.3.3/32, rev 21 local binding: tag: 26 tib entry: 4.4.4.4/32, rev 10 local binding: tag: 28 Cisco7500a#show tag-switching atm-tdp bindings Destination: 4.4.4.4/32 Headend Router ATM2/0/0.10 (1 hop) 1/33 Active, VCD=24 Destination: 3.3.3.3/32 Headend Router ATM2/0/0.10 (2 hops) 1/43 Active, VCD=25 Destination: 2.2.2.2/32 Headend Router ATM2/0/0.10 (3 hops) 1/42 Active, VCD=26 Destination: 1.1.1.1/32 Tailend Router ATM2/0/0.10 1/33 Active, VCD=24 Cisco7500a#show tag-switching forwarding-table vrf NEW Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 29 Aggregate 100.1.1.0/24[V] 2080 30 Untagged 10.3.3.0/24[V] 0 Et2/1/0 100.1.1.2 31 Untagged 10.2.2.0/24[V] 0 Et2/1/0 100.1.1.2 32 Untagged 10.1.1.0/24[V] 0 Et2/1/0 100.1.1.2
P1
LS1010#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR T - traffic engineered route Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets O 1.1.1.1 [110/2] via 1.1.1.1, 19:00:12, ATM12/0/0 2.0.0.0/32 is subnetted, 1 subnets O 2.2.2.2 [110/3] via 3.3.3.3, 19:00:12, ATM12/0/1 3.0.0.0/32 is subnetted, 1 subnets O 3.3.3.3 [110/2] via 3.3.3.3, 19:00:12, ATM12/0/1 4.0.0.0/32 is subnetted, 1 subnets C 4.4.4.4 is directly connected, Loopback0 LS1010#show tag-switching atm-tdp bindings Destination: 4.4.4.4/32 Tailend Switch ATM12/0/0 1/33 Active -> Terminating Active Tailend Switch ATM12/0/1 1/34 Active -> Terminating Active Destination: 2.2.2.2/32 Transit ATM12/0/0 1/42 Active -> ATM12/0/1 1/35 Active Destination: 1.1.1.1/32 Transit ATM12/0/1 1/33 Active -> ATM12/0/0 1/33 Active Destination: 3.3.3.3/32 Transit ATM12/0/0 1/43 Active -> ATM12/0/1 1/34 Active
P2
LS1010#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is 10.118.1.21 to network 0.0.0.0 1.0.0.0/32 is subnetted, 1 subnets O 1.1.1.1 [110/3] via 4.4.4.4, 19:46:00, ATM0/1/1 2.0.0.0/32 is subnetted, 1 subnets O 2.2.2.2 [110/2] via 2.2.2.2, 19:46:00, ATM0/1/3 3.0.0.0/32 is subnetted, 1 subnets C 3.3.3.3 is directly connected, Loopback0 4.0.0.0/32 is subnetted, 1 subnets O 4.4.4.4 [110/2] via 4.4.4.4, 19:46:00, ATM0/1/1 10.0.0.0/24 is subnetted, 1 subnets C 10.118.1.0 is directly connected, Ethernet2/0/0 S* 0.0.0.0/0 [1/0] via 10.118.1.21 LS1010#show tag-switching atm-tdp bindings Destination: 1.1.1.1/32 Transit ATM0/1/3 1/33 Active -> ATM0/1/1 1/33 Active Destination: 3.3.3.3/32 Tailend Switch ATM0/1/3 1/34 Active -> Terminating Active Tailend Switch ATM0/1/1 1/34 Active -> Terminating Active Destination: 4.4.4.4/32 Transit ATM0/1/3 1/35 Active -> ATM0/1/1 1/34 Active Destination: 2.2.2.2/32 Transit ATM0/1/1 1/35 Active -> ATM0/1/3 1/33 Active
PE2
Cisco7500#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 1.0.0.0/32 is subnetted, 1 subnets O 1.1.1.1 [110/4] via 3.3.3.3, 02:58:46, ATM3/1/0.1 2.0.0.0/32 is subnetted, 1 subnets C 2.2.2.2 is directly connected, Loopback0 3.0.0.0/32 is subnetted, 1 subnets O 3.3.3.3 [110/2] via 3.3.3.3, 02:58:46, ATM3/1/0.1 4.0.0.0/32 is subnetted, 1 subnets O 4.4.4.4 [110/3] via 3.3.3.3, 02:58:46, ATM3/1/0.1 Cisco7500#show ip route vrf NEW Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 100.0.0.0/24 is subnetted, 1 subnets B 100.1.1.0 [200/0] via 1.1.1.1, 01:16:13 110.0.0.0/24 is subnetted, 1 subnets C 110.1.1.0 is directly connected, FastEthernet3/0/0 10.0.0.0/24 is subnetted, 3 subnets B 10.3.3.0 [200/1] via 1.1.1.1, 01:16:13 B 10.2.2.0 [200/1] via 1.1.1.1, 01:16:13 B 10.1.1.0 [200/1] via 1.1.1.1, 01:16:13 30.0.0.0/24 is subnetted, 3 subnets R 30.3.3.0 [120/1] via 110.1.1.2, 00:00:16, FastEthernet3/0/0 R 30.2.2.0 [120/1] via 110.1.1.2, 00:00:17, FastEthernet3/0/0 R 30.1.1.0 [120/1] via 110.1.1.2, 00:00:17, FastEthernet3/0/0 Cisco7500#show ip rip database vrf NEW 10.0.0.0/8 auto-summary 10.1.1.0/24 redistributed [1] via 1.1.1.1, 10.2.2.0/24 redistributed [1] via 1.1.1.1, 10.3.3.0/24 redistributed [1] via 1.1.1.1, 30.0.0.0/8 auto-summary 30.1.1.0/24 [1] via 110.1.1.2, 00:00:09, FastEthernet3/0/0 30.2.2.0/24 [1] via 110.1.1.2, 00:00:09, FastEthernet3/0/0 30.3.3.0/24 [1] via 110.1.1.2, 00:00:09, FastEthernet3/0/0 100.0.0.0/8 auto-summary 100.1.1.0/24 redistributed [1] via 1.1.1.1, 110.0.0.0/8 auto-summary 110.1.1.0/24 directly connected, FastEthernet3/0/0 Cisco7500#show ip bgp vpnv4 vrf NEW BGP table version is 17, local router ID is 2.2.2.2 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 200:1 (default for vrf NEW) *>i10.1.1.0/24 1.1.1.1 1 100 0 ? *>i10.2.2.0/24 1.1.1.1 1 100 0 ? *>i10.3.3.0/24 1.1.1.1 1 100 0 ? *> 30.1.1.0/24 110.1.1.2 1 32768 ? *> 30.2.2.0/24 110.1.1.2 1 32768 ? *> 30.3.3.0/24 110.1.1.2 1 32768 ? *>i100.1.1.0/24 1.1.1.1 0 100 0 ? *> 110.1.1.0/24 0.0.0.0 0 32768 ? Cisco7500#show tag-switching interfaces Interface IP Tunnel Operational ATM3/1/0.1 Yes No Yes (ATM tagging) Cisco7500#show tag-switching interfaces detail Interface ATM3/1/0.1: IP tagging enabled TSP Tunnel tagging not enabled Tagging operational Tagswitching turbo vector MTU = 4470 ATM tagging: Tag VPI = 1 Tag VCI range = 33 - 65535 Control VC = 0/32 Cisco7500#show tag-switching ? atm-tdp ATM Tagging Protocol information cos-map Show Tag CoS ATM Multi-VC CoS Map forwarding-table Show the Tag Forwarding Information Base (TFIB) interfaces Show per-interface tag switching prefix-map Show Tag CoS Prefix Map tdp Tag Distribution Protocol information Cisco7500#show tag-switching tdp bindings tib entry: 1.1.1.1/32, rev 25 local binding: tag: 26 tib entry: 2.2.2.2/32, rev 2 local binding: tag: imp-null tib entry: 3.3.3.3/32, rev 27 local binding: tag: 27 tib entry: 4.4.4.4/32, rev 29 local binding: tag: 28 Cisco7500#show tag-switching atm-tdp bindings Destination: 1.1.1.1/32 Headend Router ATM3/1/0.1 (3 hops) 1/33 Active, VCD=8 Destination: 3.3.3.3/32 Headend Router ATM3/1/0.1 (1 hop) 1/34 Active, VCD=6 Destination: 4.4.4.4/32 Headend Router ATM3/1/0.1 (2 hops) 1/35 Active, VCD=7 Destination: 2.2.2.2/32 Tailend Router ATM3/1/0.1 1/33 Active, VCD=8 Cisco7500#show tag-switching forwarding-table vrf NEW Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 33 Aggregate 110.1.1.0/24[V] 0 34 Untagged 30.3.3.0/24[V] 0 Fa3/0/0 110.1.1.2 35 Untagged 30.2.2.0/24[V] 0 Fa3/0/0 110.1.1.2 36 Untagged 30.1.1.0/24[V] 0 Fa3/0/0 110.1.1.2
CE2
Cisco7100#show ip route Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 100.0.0.0/24 is subnetted, 1 subnets R 100.1.1.0 [120/1] via 110.1.1.1, 00:00:19, FastEthernet0/0 110.0.0.0/24 is subnetted, 1 subnets C 110.1.1.0 is directly connected, FastEthernet0/0 10.0.0.0/24 is subnetted, 3 subnets R 10.3.3.0 [120/1] via 110.1.1.1, 00:00:19, FastEthernet0/0 R 10.2.2.0 [120/1] via 110.1.1.1, 00:00:19, FastEthernet0/0 R 10.1.1.0 [120/1] via 110.1.1.1, 00:00:19, FastEthernet0/0 30.0.0.0/24 is subnetted, 3 subnets C 30.3.3.0 is directly connected, Loopback2 C 30.2.2.0 is directly connected, Loopback1 C 30.1.1.0 is directly connected, Loopback0
Revisione | Data di pubblicazione | Commenti |
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1.0 |
29-Nov-2001 |
Versione iniziale |