NESTA PÁGINA
Exemplo: configuração de next hops compostos encadeados para conexões diretas de PE-PE em VPNs
Requisitos
Este exemplo mostra como habilitar uma conexão de rede privada virtual (VPN) de camada 2 para um roteador de borda provedor (PE) com próximos saltos compostos encadeados para interfaces MIC e MPC em roteadores MX Series e T4000. Este exemplo usa os seguintes componentes de hardware e software
Cinco roteadores que podem ser uma combinação de roteadores MX240, MX480, MX960 ou T4000.
Junos OS Release 17.3R1 ou posterior em todos os dispositivos.
Visão geral e topologia
A Figura 1 mostra a topologia amostral de uma conexão VPN de Camada 2 com próximos saltos compostos encadeados para interfaces MIC e MPC em roteadores da série MX.
PE
Configuração
Configuração rápida da CLI
Para configurar este exemplo rapidamente, copie os seguintes comandos, cole-os em um arquivo de texto, remova qualquer quebra de linha, altere os detalhes necessários para combinar com a configuração da sua rede e, em seguida, copie e cole os comandos no CLI no nível de [edit] hierarquia.
CE1
set interfaces ge-1/1/1 unit 0 family inet address 192.0.2.2/24 set interfaces ge-1/1/1 unit 0 family iso set interfaces ge-1/1/1 unit 0 family mpls set interfaces lo0 unit 0 family inet address 198.51.100.1/24
PE1
set interfaces ge-0/0/4 unit 0 family inet address 10.38.0.5/30 set interfaces ge-0/0/4 unit 0 family mpls set interfaces ge-0/1/1 encapsulation ethernet-ccc set interfaces ge-0/1/1 unit 0 family ccc set interfaces lo0 unit 0 family inet address 10.255.104.133/32 set routing-options forwarding-table chained-composite-next-hop ingress l2vpn set routing-options autonomous-system 200 set routing-options forwarding-table export lbpp set protocols mpls interface ge-0/0/4.0 set protocols ospf area 0.0.0.0 interface ge-0/0/4.0 set protocols bgp group PEs type internal set protocols bgp group PEs local-address 10.255.104.133 set protocols bgp group PEs family l2vpn signaling set protocols bgp group PEs family inet-vpn unicast set protocols bgp group PEs neighbor 10.255.104.134 set routing-instances vpn-a instance-type l2vpn set routing-instances vpn-a interface ge-0/1/1.0 set routing-instances vpn-a route-distinguisher 200:1 set routing-instances vpn-a vrf-target target:200:1 set routing-instances vpn-a protocols l2vpn encapsulation-type ethernet set routing-instances vpn-a protocols l2vpn site 100 site-identifier 100 set routing-instances vpn-a protocols l2vpn site 100 interface ge-0/1/1.0 remote-site-id 200
PE2
set interfaces ge-1/0/2 unit 0 family inet address 10.38.0.13/30 set interfaces ge-1/0/2 unit 0 family mpls set interfaces ge-1/0/5 encapsulation ethernet-ccc set interfaces ge-1/0/5 unit 0 family ccc set interfaces lo0 unit 0 family inet address 10.255.104.134/32 set routing-options forwarding-table chained-composite-next-hop ingress l2vpn set routing-options autonomous-system 200 set routing-options forwarding-table export lbpp set protocols mpls interface ge-1/0/2.0 set protocols ospf area 0.0.0.0 interface ge-1/0/2.0 set protocols bgp group PEs type internal set protocols bgp group PEs local-address 10.255.104.134 set protocols bgp group PEs family l2vpn signaling set protocols bgp group PEs family inet-vpn unicast set protocols bgp group PEs neighbor 10.255.104.133 set routing-instances vpn-a instance-type l2vpn set routing-instances vpn-a interface ge-1/0/5.0 set routing-instances vpn-a route-distinguisher 200:1 set routing-instances vpn-a vrf-target target:200:1 set routing-instances vpn-a protocols l2vpn encapsulation-type ethernet set routing-instances vpn-a protocols l2vpn site 200 site-identifier 200 set routing-instances vpn-a protocols l2vpn site 200 interface ge-1/0/5.0 remote-site-id 100
P
set interfaces ge-2/0/1 unit 0 family inet address 10.38.0.6/30 set interfaces ge-2/0/1 unit 0 family mpls set interfaces ge-2/0/2 unit 0 family inet address 10.38.0.14/30 set interfaces ge-2/0/2 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.255.104.136/32 set protocols mpls interface ge-2/0/1.0 set protocols ospf area 0.0.0.0 interface ge-2/0/1.0 set protocols mpls interface ge-2/0/2.0 set protocols ospf area 0.0.0.0 interface ge-2/0/2.0 set routing-options autonomous-system 200
CE2
set interfaces ge-2/2/2 unit 0 family inet address 192.0.2.4/24 set interfaces ge-2/2/2 unit 0 family mpls set interfaces lo0 unit 0 family inet address 198.51.100.2/24
Procedimento
Procedimento passo a passo
O exemplo a seguir exige que você navegue por vários níveis na hierarquia de configuração. Para obter informações sobre como navegar na CLI, consulte Usando o Editor de CLI no modo de configuração.
Para configurar a VPN básica de Camada 2 com um próximo salto composto encadeado no roteador PE1:
Repita este procedimento para o roteador PE2 no domínio MPLS, depois de modificar os nomes, endereços e quaisquer outros parâmetros apropriados para o roteador.
Configure as interfaces no roteador PE1.
PE1 to CE1
[edit interfaces]user@PE1# set interfaces ge-0/1/1 encapsulation ethernet-ccc user@PE1# set interfaces ge-0/1/1 unit 0 family cccPE1 to P
[edit interfaces]user@PE1 # set ge-0/0/4 unit 0 family inet address 10.38.0.5/30 user@PE1 # set ge-0/0/4 unit 0 family mplsLoopback interface
[edit interfaces]user@PE1 # set lo0 unit 0 family inet address 10.255.104.133/32Habilite o próximo salto composto em cadeia na VPN global de Camada 2.
[edit routing-options]use@PE1# set forwarding-table chained-composite-next-hop ingress l2vpnConfigure o sistema autônomo para PE1.
[edit routing-options]user@PE1# set autonomous-system 200Exporte a política configurada para balanceamento de carga.
[edit routing-options]user@PE1# set forwarding-table export lbppConfigure o MPLS nas interfaces PE1 que se conectam ao roteador P.
[edit protocols]set mpls interface ge-0/0/4.0Configure o OSPF no nterface PE1.
[edit protocols]user@PE1# set ospf area 0.0.0.0 interface ge-0/0/4.0Configure o grupo IBGP para roteador PE1 a PE2.
[edit protocols]user@PE1# set bgp group PEs type internal user@PE1# set bgp group PEs local-address 10.255.104.133 user@PE1# set bgp group PEs family l2vpn signaling user@PE1# set bgp group PEs family inet-vpn unicast user@PE1# set bgp group PEs neighbor 10.255.104.134Configure os parâmetros da instância de roteamento.
[edit routing-instances]user@PE1# set vpn-a instance-type l2vpn user@PE1# set vpn-a interface ge-0/1/1.0 user@PE1# set vpn-a route-distinguisher 200:1 user@PE1# set vpn-a vrf-target target:200:1 user@PE1# set vpn-a protocols l2vpn encapsulation-type ethernet user@PE1# set vpn-a protocols l2vpn site 100 site-identifier 100 user@PE1# set vpn-a protocols l2vpn site 100 interface ge-0/1/1.0 remote-site-id 200
Resultados
A partir do modo de configuração, confirme sua configuração inserindo os show chassisshow interfacesshow routing-optionsshow protocolsshow routing-instancescomandos e show policy-options comandos. Se a saída não exibir a configuração pretendida, repita as instruções neste exemplo para corrigir a configuração.
PE1
user@PE1# show interfaces
ge-0/0/4 {
unit 0 {
family inet {
address 10.38.0.5/30;
}
family mpls;
}
}
ge-0/1/1 {
encapsulation ethernet-ccc;
unit 0 {
family iso;
family mpls;
}
}
lo0 {
unit 0 {
family inet {
address 10.255.104.133/32;
}
}
}
user@PE1# show protocols
mpls {
interface ge0/0/4.0;
}
bgp {
group PEs {
type internal;
local-address 10.255.104.133;
family inet-vpn {
unicast;
}
family l2vpn {
signaling;
}
neighbor 10.255.104.134;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/4.0;
}
}
user@PE1# show routing-options
autonomous-system 200;
forwarding-table {
export lbpp;
chained-composite-next-hop {
ingress {
l2vpn;
}
}
}
user@PE1# show routing-instances
vpn-a {
instance-type l2vpn;
interface ge-0/1/1.0;
route-distinguisher 200:1;
vrf-target target:200:1;
protocols {
l2vpn {
encapsulation-type ethernet;
site 100 {
site-identifier 100;
interface ge-0/1/1.0 {
remote-site-id 200;
}
}
}
}
}