NESTA PÁGINA
Exemplo: distribuição ponderada de tráfego ECMP em vizinhos IS-IS de um salto
Este exemplo mostra como configurar o roteamento multipath de custo igual ponderado (ECMP) para distribuir o tráfego para vizinhos IS-IS que estão a um salto de distância para garantir o balanceamento de carga ideal. O roteamento ECMP ponderado distribui o tráfego de forma desigual em vários caminhos para um melhor balanceamento de carga. No entanto, o roteamento ECMP ponderado é mais eficiente do que a distribuição igual de tráfego durante o balanceamento de carga por pacote.
Requerimentos
Este exemplo usa os seguintes componentes de hardware e software:
Dois roteadores da Série MX
Junos OS versão 15.1F4 ou posterior
Antes de configurar o ECMP ponderado em uma rede IS-IS, certifique-se de:
Configure endereços IP nas interfaces do dispositivo.
Configure IS-IS.
Configurar o balanceamento de carga
Configure uma política de balanceamento de carga por pacote.
Visão geral
A partir do Junos OS Release 15.1F4, você pode configurar o protocolo IS-IS para obter as informações de largura de banda da interface lógica associadas aos gateways do próximo salto de igual custo multipath (ECMP). Durante o balanceamento de carga por pacote, a distribuição de tráfego é baseada na largura de banda disponível para facilitar o uso ideal da largura de banda para o tráfego de entrada em um caminho ECMP de distância de um salto. O Mecanismo de Encaminhamento de Pacotes não distribui o tráfego igualmente, mas considera os valores de saldo e distribui o tráfego de acordo com a disponibilidade de largura de banda. No entanto, esse recurso não está disponível para caminhos ECMP que estão a mais de um salto de distância.
Topologia
Na Figura 1, três pacotes Ethernet agregados ae0, ae1 e ae2 com quatro links cada, são configurados entre o Roteador R0 e o Roteador R1. O Mecanismo de Encaminhamento de Pacotes distribui o tráfego de forma desigual entre os três pacotes Ethernet quando um dos links fica inativo, dependendo da largura de banda disponível.
Figura 1: Distribuição ponderada de tráfego ECMP em vizinhos
IS-IS de um salto
IS-IS de um salto
Configuração
Configuração rápida da CLI
Para configurar rapidamente este exemplo, copie os comandos a seguir, cole-os em um arquivo de texto, remova quaisquer quebras de linha, altere todos os detalhes necessários para corresponder à sua configuração de rede, copie e cole os comandos na CLI no nível de [edit] hierarquia e, em seguida, entre commit no modo de configuração.
Roteador R0
set interfaces ge-1/1/4 description "LinkID: R0R1-1" set interfaces ge-0/0/0 description "LinkID: R0R1-2" set interfaces ge-1/2/1 description "LinkID: R0R1-3" set interfaces ge-1/2/2 description "LinkID: R0R1-4" set interfaces ge-1/2/0 description "LinkID: R0R1-5" set interfaces ge-1/2/3 description "LinkID: R0R1-6" set interfaces ge-0/1/6 description "LinkID: R0R1-7" set interfaces ge-1/1/6 description "LinkID: R0R1-8" set interfaces ge-1/1/5 description "LinkID: R0R1-9" set interfaces ge-1/3/3 description "LinkID: R0R1-10" set interfaces ge-1/2/8 description "LinkID: R0R1-11" set interfaces ge-0/1/8 description "LinkID: R0R1-12" set interfaces ge-0/1/7 description "LinkID: R0R1-13" set interfaces ge-0/0/1 description "LinkID: R0RT0" set chassis maximum-ecmp 64 set chassis redundancy graceful-switchover set chassis aggregated-devices ethernet device-count 64 set interfaces ge-0/0/1 unit 0 family inet address 21.1.1.1/24 set interfaces ge-0/0/1 unit 0 family iso set interfaces ge-1/1/4 gigether-options 802.3ad ae0 set interfaces ge-0/0/0 gigether-options 802.3ad ae0 set interfaces ge-1/2/1 gigether-options 802.3ad ae0 set interfaces ge-1/2/2 gigether-options 802.3ad ae0 set interfaces ge-1/2/0 gigether-options 802.3ad ae1 set interfaces ge-1/2/3 gigether-options 802.3ad ae1 set interfaces ge-0/1/6 gigether-options 802.3ad ae1 set interfaces ge-1/1/6 gigether-options 802.3ad ae1 set interfaces ge-1/1/5 gigether-options 802.3ad ae2 set interfaces ge-1/3/3 gigether-options 802.3ad ae2 set interfaces ge-1/2/8 gigether-options 802.3ad ae2 set interfaces ge-0/1/8 gigether-options 802.3ad ae2 set interfaces ge-0/1/7 unit 0 family inet address 10.3.1.1/24 set interfaces ge-0/1/7 unit 0 family iso set interfaces ae0 aggregated-ether-options minimum-links 1 set interfaces ae0 aggregated-ether-options lacp active set interfaces ae0 unit 0 family inet address 10.0.1.1/24 set interfaces ae0 unit 0 family iso set interfaces ae1 vlan-tagging set interfaces ae1 aggregated-ether-options minimum-links 1 set interfaces ae1 aggregated-ether-options lacp active set interfaces ae1 unit 0 family inet address 10.1.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 1; set interfaces ae1 unit 1 family inet address 13.1.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 2; set interfaces ae1 unit 1 family inet address 13.2.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 3; set interfaces ae1 unit 1 family inet address 13.3.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 4; set interfaces ae1 unit 1 family inet address 13.4.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 5; set interfaces ae1 unit 1 family inet address 13.5.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 6; set interfaces ae1 unit 1 family inet address 13.6.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 7; set interfaces ae1 unit 1 family inet address 13.7.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 8; set interfaces ae1 unit 1 family inet address 13.8.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 9; set interfaces ae1 unit 1 family inet address 13.9.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae1 unit 1 bandwidth 1g; set interfaces ae1 unit 1 vlan-id 10; set interfaces ae1 unit 1 family inet address 13.10.1.1/24 set interfaces ae1 unit 0 family iso set interfaces ae2 aggregated-ether-options minimum-links 2 set interfaces ae2 aggregated-ether-options lacp active set interfaces ae2 unit 0 family inet address 10.2.1.1/24 set interfaces ae2 unit 0 family iso set interfaces lo0 unit 0 family iso address 49.0001.0102.5516.3127.00 set routing-options forwarding-table export pplb set protocols isis interface ge-0/0/1.0 set protocols isis interface ge-0/1/7.0 level 1 metric 20 set protocols isis interface ge-0/1/7.0 level 2 metric 20 set protocols isis interface ae0.0 node-link-protection set protocols isis interface ae1.0 set protocols isis interface ae2.0 set protocols isis interface lo0.0 set policy-options policy-statement pplb then load-balance per-packet set protocols isis spf-options multipath weighted one-hop
Roteador R1
set interfaces ge-1/1/4 description "LinkID: R0R1-1" set interfaces ge-0/0/0 description "LinkID: R0R1-2" set interfaces ge-1/2/1 description "LinkID: R0R1-3" set interfaces ge-1/2/2 description "LinkID: R0R1-4" set interfaces ge-1/2/0 description "LinkID: R0R1-5" set interfaces ge-1/2/3 description "LinkID: R0R1-6" set interfaces ge-0/1/6 description "LinkID: R0R1-7" set interfaces ge-1/1/6 description "LinkID: R0R1-8" set interfaces ge-1/1/5 description "LinkID: R0R1-9" set interfaces ge-1/3/3 description "LinkID: R0R1-10" set interfaces ge-1/2/8 description "LinkID: R0R1-11" set interfaces ge-0/1/8 description "LinkID: R0R1-12" set interfaces ge-0/1/7 description "LinkID: R0R1-13" set interfaces ge-0/1/0 description "LinkID: R1RT0" set chassis aggregated-devices ethernet device-count 64 set interfaces ge-0/1/0 unit 0 family inet address 22.1.1.1/24 set interfaces ge-0/1/0 unit 0 family iso set interfaces ge-1/1/4 gigether-options 802.3ad ae0 set interfaces ge-0/0/0 gigether-options 802.3ad ae0 set interfaces ge-1/2/1 gigether-options 802.3ad ae0 set interfaces ge-1/2/2 gigether-options 802.3ad ae0 set interfaces ge-1/2/0 gigether-options 802.3ad ae1 set interfaces ge-1/2/3 gigether-options 802.3ad ae1 set interfaces ge-0/1/6 gigether-options 802.3ad ae1 set interfaces ge-1/1/6 gigether-options 802.3ad ae1 set interfaces ge-1/1/5 gigether-options 802.3ad ae2 set interfaces ge-1/3/3 gigether-options 802.3ad ae2 set interfaces ge-1/2/8 gigether-options 802.3ad ae2 set interfaces ge-0/1/8 gigether-options 802.3ad ae2 set interfaces ge-0/1/7 unit 0 family inet address 10.3.1.2/24 set interfaces ge-0/1/7 unit 0 family iso set interfaces ae0 aggregated-ether-options minimum-links 1 set interfaces ae0 aggregated-ether-options lacp active set interfaces ae0 unit 0 family inet address 10.0.1.2/24 set interfaces ae0 unit 0 family iso set interfaces ae1 aggregated-ether-options minimum-links 1 set interfaces ae1 aggregated-ether-options lacp active set interfaces ae1 unit 0 family inet address 10.1.1.2/24 set interfaces ae1 unit 0 family iso set interfaces ae2 aggregated-ether-options minimum-links 2 set interfaces ae2 aggregated-ether-options lacp active set interfaces ae2 unit 0 family inet address 10.2.1.2/24 set interfaces ae2 unit 0 family iso set interfaces lo0 unit 0 family iso address 49.0001.0102.5516.3130.00 set protocols isis export from-static set protocols isis interface ge-0/1/0.0 set protocols isis interface ge-0/1/7.0 set protocols isis interface ae0.0 set protocols isis interface ae1.0 set protocols isis interface ae2.0 set protocols isis interface lo0.0 set policy-options policy-statement from-static from protocol static set policy-options policy-statement from-static then accept
Configurando o roteador R0
Procedimento passo a passo
O exemplo a seguir requer que você navegue por vários níveis na hierarquia de configuração. Para obter informações sobre como navegar na CLI, consulte Uso do Editor de CLI no Modo de Configuração no Guia do Usuário da CLI.
Para configurar o Roteador R0:
Observação:
Repita este procedimento para o Roteador R1 depois de modificar os nomes de interface apropriados, endereços e outros parâmetros.
Especifique o número máximo de interfaces ECMP ponderadas que você deseja configurar. Habilite a comutação graciosa e especifique o número de interfaces Ethernet agregadas a serem criadas.
[edit chassis]user@R0# set maximum-ecmp 64 user@R0# set redundancy graceful-switchover user@R0# set aggregated-devices ethernet device-count 64Configure as interfaces com vários links para o mesmo destino para balanceamento de carga de tráfego.
[edit interfaces]user@R0# set ge-1/1/4 description "LinkID: R0R1-1" user@R0# set ge-0/0/0 description "LinkID: R0R1-2" user@R0# set ge-1/2/1 description "LinkID: R0R1-3" user@R0# set ge-1/2/2 description "LinkID: R0R1-4" user@R0# set ge-1/2/0 description "LinkID: R0R1-5" user@R0# set ge-1/2/3 description "LinkID: R0R1-6" user@R0# set ge-0/1/6 description "LinkID: R0R1-7" user@R0# set ge-1/1/6 description "LinkID: R0R1-8" user@R0# set ge-1/1/5 description "LinkID: R0R1-9" user@R0# set ge-1/3/3 description "LinkID: R0R1-10" user@R0# set ge-1/2/8 description "LinkID: R0R1-11" user@R0# set ge-0/1/8 description "LinkID: R0R1-12" user@R0# set ge-0/1/7 description "LinkID: R0R1-13" user@R0# set ge-0/0/1 description "LinkID: R0RT0"Configure interfaces lógicas com largura de banda apropriada com base na largura de banda física subjacente.
user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 1; user@R0# set ae1 unit 1 family inet address 13.1.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 2; user@R0# set ae1 unit 1 family inet address 13.2.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 3; user@R0# set ae1 unit 1 family inet address 13.3.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 4; user@R0# set ae1 unit 1 family inet address 13.4.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 5; user@R0# set ae1 unit 1 family inet address 13.5.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 6; user@R0# set ae1 unit 1 family inet address 13.6.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 7; user@R0# set ae1 unit 1 family inet address 13.7.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 8; user@R0# set ae1 unit 1 family inet address 13.8.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 9; user@R0# set ae1 unit 1 family inet address 13.9.1.1/24 user@R0# set ae1 unit 0 family iso user@R0# set ae1 unit 1 bandwidth 1g; user@R0# set ae1 unit 1 vlan-id 10; user@R0# set ae1 unit 1 family inet address 13.10.1.1/24 user@R0# set ae1 unit 0 family iso
Observação:Para interfaces lógicas, configure a largura de banda da interface para distribuir o tráfego em multicaminhos de custo igual com base na largura de banda da interface operacional subjacente. Ao configurar várias interfaces lógicas em uma única interface, configure a largura de banda lógica apropriada para cada interface lógica para ver a distribuição de tráfego desejada nas interfaces lógicas.
Configure endereços IP nas interfaces com endereços IPv4 ou IPv6, conforme seus requisitos de rede.
[edit interfaces]user@R0# set ge-0/0/1 unit 0 family inet address 21.1.1.1/24 user@R0# set ge-0/0/1 unit 0 family iso user@R0# set ge-0/1/7 unit 0 family inet address 10.3.1.1/24 user@R0# set ge-0/1/7 unit 0 family isoConfigure os quatro links de membros do pacote Ethernet agregado ae0.
[edit interfaces]user@R0# set ge-1/1/4 gigether-options 802.3ad ae0 user@R0# set ge-0/0/0 gigether-options 802.3ad ae0 user@R0# set ge-1/2/1 gigether-options 802.3ad ae0 user@R0# set ge-1/2/2 gigether-options 802.3ad ae0Configure os quatro links de membros do pacote Ethernet agregado ae1.
[edit interfaces]user@R0# set ge-1/2/0 gigether-options 802.3ad ae1 user@R0# set ge-1/2/3 gigether-options 802.3ad ae1 user@R0# set ge-0/1/6 gigether-options 802.3ad ae1 user@R0# set ge-1/1/6 gigether-options 802.3ad ae1Configure os quatro links de membros do pacote Ethernet agregado ae2.
[edit interfaces]user@R0# set ge-1/1/5 gigether-options 802.3ad ae2 user@R0# set ge-1/3/3 gigether-options 802.3ad ae2 user@R0# set ge-1/2/8 gigether-options 802.3ad ae2 user@R0# set ge-0/1/8 gigether-options 802.3ad ae2Configure o endereço IP e o Link Aggregation Control Protocol (LACP) para a interface Ethernet agregada ae0.
[edit interfaces]user@R0# set ae0 aggregated-ether-options minimum-links 1 user@R0# set ae0 aggregated-ether-options lacp active user@R0# set ae0 unit 0 family inet address 10.0.1.1/24 user@R0# set ae0 unit 0 family isoConfigure o endereço IP e o Link Aggregation Control Protocol (LACP) para a interface Ethernet agregada ae1.
[edit interfaces]user@R0# set ae1 aggregated-ether-options minimum-links 1 user@R0# set ae1 aggregated-ether-options lacp active user@R0# set ae1 unit 0 family inet address 10.1.1.1/24 user@R0# set ae1 unit 0 family isoConfigure o endereço IP e o Link Aggregation Control Protocol (LACP) para a interface Ethernet agregada ae2.
[edit interfaces]user@R0# set ae2 aggregated-ether-options minimum-links 2 user@R0# set ae2 aggregated-ether-options lacp active user@R0# set ae2 unit 0 family inet address 10.2.1.1/24 user@R0# set ae2 unit 0 family isoConfigure o endereço da interface de loopback e o endereço da família iso.
[edit interfaces]user@R0# set lo0 unit 0 family inet address 10.168.0.4/32 user@R0# set lo0 unit 0 family iso address 49.0001.0102.5516.3127.00Configure o IS-IS em todas as interfaces e nos pacotes AE.
[edit protocols]user@R0# set isis interface ge-0/0/1.0 user@R0# set isis interface ge-0/1/7.0 level 1 metric 20 user@R0# set isis interface ge-0/1/7.0 level 2 metric 20 user@R0# set isis interface ae0.0 node-link-protection user@R0# set isis interface ae1.0 user@R0# set isis interface ae2.0 user@R0# set isis interface lo0.0Configure o balanceamento de carga por pacote.
[edit policy-options]user@R0# set policy-statement pplb then load-balance per-packetAplicar a política de balanceamento de carga por pacote.
[edit routing-options]user@R0# set forwarding-table user@R0# set export pplbHabilite a distribuição de tráfego ECMP ponderada em vizinhos IS-IS conectados diretamente.
[edit protocols isis]user@R0# set spf-options multipath weighted one-hop
Resultados
No modo de configuração, confirme sua configuração inserindo os comandos , show interfaces, , show policy-optionsshow protocols, e show routing-options .show chassis Se a saída não exibir a configuração pretendida, repita as instruções neste exemplo para corrigir a configuração.
[edit] user@R0# show chassis maximum-ecmp 64; redundancy graceful-switchover; aggregated-devices ethernet device-count 64;
[edit]
user@R0# show interfaces
ge-0/0/0 {
description "LinkID: R0R1-2";
gigether-options {
802.3ad ae0;
}
}
ge-0/0/1 {
description "LinkID: R0RT0";
unit 0 {
family inet {
address 21.1.1.1/24;
}
family iso;
}
}
ge-0/1/6 {
description "LinkID: R0R1-7";
gigether-options {
802.3ad ae1;
}
}
ge-0/1/7 {
description "LinkID: R0R1-13";
unit 0 {
family inet {
address 10.3.1.1/24;
}
family iso;
}
}
ge-0/1/8 {
description "LinkID: R0R1-12";
gigether-options {
802.3ad ae2;
}
}
ge-1/1/4 {
description "LinkID: R0R1-1";
gigether-options {
802.3ad ae0;
}
}
ge-1/1/5 {
description "LinkID: R0R1-9";
gigether-options {
802.3ad ae2;
}
}
ge-1/1/6 {
description "LinkID: R0R1-8";
gigether-options {
802.3ad ae1;
}
}
ge-1/2/0 {
description "LinkID: R0R1-5";
gigether-options {
802.3ad ae1;
}
}
ge-1/2/1 {
description "LinkID: R0R1-3";
gigether-options {
802.3ad ae0;
}
}
ge-1/2/2 {
description "LinkID: R0R1-4";
gigether-options {
802.3ad ae0;
}
}
ge-1/2/3 {
description "LinkID: R0R1-6";
gigether-options {
802.3ad ae1;
}
}
ge-1/2/8 {
description "LinkID: R0R1-11";
gigether-options {
802.3ad ae2;
}
}
ge-1/3/3 {
description "LinkID: R0R1-10";
gigether-options {
802.3ad ae2;
}
}
ae0 {
aggregated-ether-options {
minimum-links 1;
lacp {
active;
}
}
unit 0 {
family inet {
address 10.0.1.1/24;
}
family iso;
}
}
ae1 {
vlan-tagging;
aggregated-ether-options {
minimum-links 3;
lacp {
active;
}
}
unit 0 {
family inet {
address 10.1.1.1/24;
}
family iso;
}
unit 1 {
bandwidth 1g;
vlan-id 1;
family inet {
address 13.1.1.1/24;
}
family iso;
}
unit 2 {
bandwidth 1g;
vlan-id 2;
family inet {
address 13.2.1.1/24;
}
family iso;
}
unit 3 {
bandwidth 1g;
vlan-id 3;
family inet {
address 13.3.1.1/24;
}
family iso;
}
unit 4 {
bandwidth 1g;
vlan-id 4;
family inet {
address 13.4.1.1/24;
}
family iso;
}
unit 5 {
bandwidth 1g;
vlan-id 5;
family inet {
address 13.5.1.1/24;
}
family iso;
}
unit 6 {
bandwidth 1g;
vlan-id 6;
family inet {
address 13.6.1.1/24;
}
family iso;
}
unit 7 {
bandwidth 1g;
vlan-id 7;
family inet {
address 13.7.1.1/24;
}
family iso;
}
unit 8 {
bandwidth 1g;
vlan-id 8;
family inet {
address 13.8.1.1/24;
}
family iso;
}
unit 9 {
bandwidth 1g;
vlan-id 9;
family inet {
address 13.9.1.1/24;
}
family iso;
}
unit 10 {
bandwidth 1g;
vlan-id 10;
family inet {
address 13.10.1.1/24;
}
family iso;
}
}
ae2 {
aggregated-ether-options {
minimum-links 2;
lacp {
active;
}
}
unit 0 {
family inet {
address 10.2.1.1/24;
}
family iso;
}
}
lo0 {
unit 0 {
family inet {
address 192.168.0.4/32;
}
family iso {
address 49.0001.0102.5516.3127.00;
}
}
}
[edit]
user@R0# show protocols
isis {
spf-options {
multi-path {
weighted {
one-hop;
}
}
}
}
[edit]
user@R01# show policy-options
policy-statement pplb {
then {
load-balance per-packet;
}
}
[edit]
user@R0# show routing-options
forwarding-table {
export pplb;
}
Verificação
Confirme se a configuração está funcionando corretamente.
- Verificando a distribuição igual do tráfego em vários caminhos de custo igual
- Verificando a distribuição desigual de tráfego na largura de banda disponível
- Verificando a distribuição desigual de tráfego em interfaces lógicas
Verificando a distribuição igual do tráfego em vários caminhos de custo igual
Finalidade
Para verificar se o tráfego está igualmente distribuído pelos pacotes Ethernet agregados.
Ação
Do modo operacional, insira o show route 198.0.0.1 extensive comando.
user@R0> show route 198.0.0.1 extensive
inet.0: 10028 destinations, 10029 routes (10027 active, 0 holddown, 1 hidden)
198.0.0.1/32 (1 entry, 1 announced)
TSI:
KRT in-kernel 198.0.0.1/32 -> {10.0.1.2, 10.1.1.2, 10.2.1.2, 10.3.1.2}
*IS-IS Preference: 18
Level: 2
Next hop type: Router, Next hop index: 1048574
Address: 0x9ec5e10
Next-hop reference count: 20005
Next hop: 10.0.1.2 via ae0.0 weight 0x1 balance 33%
Session Id: 0x1b2
Next hop: 10.1.1.2 via ae1.0 weight 0x1 balance 33%, selected
Session Id: 0x1b1
Next hop: 10.2.1.2 via ae2.0 weight 0x1 balance 33%
Session Id: 0x1b3
Next hop: 10.3.1.2 via ge-0/1/7.0 weight 0xf000
Session Id: 0x1b0
State: <Active Int>
Age: 35 Metric: 20
Validation State: unverified
Task: IS-IS
Announcement bits (1): 0-KRT
AS path: I
user@R0> show interfaces ae0.0 extensive
Logical interface ae0.0 (Index 335) (SNMP ifIndex 625) (Generation 825)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 702 4 207265 4320
Output: 870567 33801 95801535 29746416
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/0/0.0
Input : 149 1 17924 992
Output: 218927 8586 24081728 7556344
ge-1/1/4.0
Input : 134 1 16616 992
Output: 201384 7781 22152240 6847320
ge-1/2/1.0
Input : 136 1 16864 992
Output: 212760 8238 23443069 7250056
ge-1/2/2.0
Input : 283 1 155861 1344
Output: 237496 9196 26124498 8092696
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/0/0.0 Actor 127 3c:61:04:2f:c7:c0 127 1 1
ge-0/0/0.0 Partner 127 3c:61:04:2d:9f:c0 127 1 1
ge-1/1/4.0 Actor 127 3c:61:04:2f:c7:c0 127 4 1
ge-1/1/4.0 Partner 127 3c:61:04:2d:9f:c0 127 4 1
ge-1/2/1.0 Actor 127 3c:61:04:2f:c7:c0 127 8 1
ge-1/2/1.0 Partner 127 3c:61:04:2d:9f:c0 127 8 1
ge-1/2/2.0 Actor 127 3c:61:04:2f:c7:c0 127 9 1
ge-1/2/2.0 Partner 127 3c:61:04:2d:9f:c0 127 9 1
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/0/0.0 130 125 0 0
ge-1/1/4.0 127 121 0 0
ge-1/2/1.0 127 123 0 0
ge-1/2/2.0 128 123 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/0/0.0 0 0 0 0
ge-1/1/4.0 0 0 0 0
ge-1/2/1.0 0 0 0 0
ge-1/2/2.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1699, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.0.1/24, Local: 10.0.1.1, Broadcast: 10.0.1.255, Generation: 1501
Protocol iso, MTU: 1497, Generation: 1700, Route table: 0
Flags: Is-Primary
Protocol multiservice, MTU: Unlimited, Generation: 1701, Route table: 0
Flags: Is-Primary
Policer: Input: __default_arp_policer__
user@R0> show interfaces ae1.0 extensive
Logical interface ae1.0 (Index 336) (SNMP ifIndex 666) (Generation 826)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 707 4 206275 3968
Output: 849981 32979 93602009 29023264
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/1/6.0
Input : 148 1 17800 992
Output: 198301 7819 21812806 6880984
ge-1/1/6.0
Input : 134 1 16616 992
Output: 209149 8088 23006390 7117728
ge-1/2/0.0
Input : 136 1 16864 992
Output: 215518 8291 23811445 7296528
ge-1/2/3.0
Input : 289 1 154995 992
Output: 227013 8781 24971368 7728024
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/1/6.0 Actor 127 3c:61:04:2f:c7:c0 127 2 2
ge-0/1/6.0 Partner 127 3c:61:04:2d:9f:c0 127 2 2
ge-1/1/6.0 Actor 127 3c:61:04:2f:c7:c0 127 6 2
ge-1/1/6.0 Partner 127 3c:61:04:2d:9f:c0 127 6 2
ge-1/2/0.0 Actor 127 3c:61:04:2f:c7:c0 127 7 2
ge-1/2/0.0 Partner 127 3c:61:04:2d:9f:c0 127 7 2
ge-1/2/3.0 Actor 127 3c:61:04:2f:c7:c0 127 10 2
ge-1/2/3.0 Partner 127 3c:61:04:2d:9f:c0 127 10 2
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/1/6.0 129 123 0 0
ge-1/1/6.0 127 121 0 0
ge-1/2/0.0 127 123 0 0
ge-1/2/3.0 128 123 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/1/6.0 0 0 0 0
ge-1/1/6.0 0 0 0 0
ge-1/2/0.0 0 0 0 0
ge-1/2/3.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1702, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.1.1/24, Local: 10.1.1.1, Broadcast: 10.1.1.255, Generation: 1503
Protocol iso, MTU: 1497, Generation: 1703, Route table: 0
Protocol multiservice, MTU: Unlimited, Generation: 1704, Route table: 0
Policer: Input: __default_arp_policer__
user@R0> show interfaces ae2.0 extensive
Logical interface ae2.0 (Index 337) (SNMP ifIndex 961) (Generation 827)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 702 4 224128 3968
Output: 855472 33229 94215862 29243664
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/1/8.0
Input : 137 1 16988 992
Output: 213214 8377 23453540 7372232
ge-1/1/5.0
Input : 137 1 16988 992
Output: 212174 8244 23339050 7255368
ge-1/2/8.0
Input : 135 1 16740 992
Output: 210583 8144 23164099 7167296
ge-1/3/3.0
Input : 293 1 173412 992
Output: 219501 8464 24259173 7448768
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/1/8.0 Actor 127 3c:61:04:2f:c7:c0 127 3 3
ge-0/1/8.0 Partner 127 3c:61:04:2d:9f:c0 127 3 3
ge-1/1/5.0 Actor 127 3c:61:04:2f:c7:c0 127 5 3
ge-1/1/5.0 Partner 127 3c:61:04:2d:9f:c0 127 5 3
ge-1/2/8.0 Actor 127 3c:61:04:2f:c7:c0 127 11 3
ge-1/2/8.0 Partner 127 3c:61:04:2d:9f:c0 127 11 3
ge-1/3/3.0 Actor 127 3c:61:04:2f:c7:c0 127 12 3
ge-1/3/3.0 Partner 127 3c:61:04:2d:9f:c0 127 12 3
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/1/8.0 127 123 0 0
ge-1/1/5.0 130 123 0 0
ge-1/2/8.0 129 124 0 0
ge-1/3/3.0 129 124 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/1/8.0 0 0 0 0
ge-1/1/5.0 0 0 0 0
ge-1/2/8.0 0 0 0 0
ge-1/3/3.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1705, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.2.1/24, Local: 10.2.1.1, Broadcast: 10.2.1.255, Generation: 1505
Protocol iso, MTU: 1497, Generation: 1706, Route table: 0
Protocol multiservice, MTU: Unlimited, Generation: 1707, Route table: 0
Policer: Input: __default_arp_policer__
Significado
O IS-IS distribui o tráfego igualmente quando os três pacotes Ethernet agregados têm a mesma largura de banda disponível.
Verificando a distribuição desigual de tráfego na largura de banda disponível
Finalidade
Para verificar se o IS-IS distribui o tráfego de forma desigual quando um dos links agregados está inativo durante o balanceamento de carga por pacote, dependendo da largura de banda disponível.
Ação
Desative um dos links no pacote ae0 para que a largura de banda disponível seja 3g em ae0 e 4g em ae1 e ae2. Do modo operacional, insira o show route 198.0.0.1 extensive comando.
user@R0> show route 198.0.0.1 extensive
inet.0: 10028 destinations, 10029 routes (10027 active, 0 holddown, 1 hidden)
198.0.0.1/32 (1 entry, 1 announced)
TSI:
KRT in-kernel 198.0.0.1/32 -> {10.0.1.2, 10.1.1.2, 10.2.1.2, 10.3.1.2}
*IS-IS Preference: 18
Level: 2
Next hop type: Router, Next hop index: 1048575
Address: 0x9ec55d0
Next-hop reference count: 20005
Next hop: 10.0.1.2 via ae0.0 weight 0x1 balance 27%
Session Id: 0x1b2
Next hop: 10.1.1.2 via ae1.0 weight 0x1 balance 36%, selected
Session Id: 0x1b1
Next hop: 10.2.1.2 via ae2.0 weight 0x1 balance 36%
Session Id: 0x1b3
Next hop: 10.3.1.2 via ge-0/1/7.0 weight 0xf000
Session Id: 0x1b0
State:<Active Int>
Age: 22 Metric: 20
Validation State: unverified
Task: IS-IS
Announcement bits (1): 0-KRT
AS path: I
user@R0> show interfaces ae0.0 extensive
Logical interface ae0.0 (Index 335) (SNMP ifIndex 625) (Generation 825)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 793 3 218290 2976
Output: 1617811 27223 178003101 23957320
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/0/0.0
Input : 182 1 21794 992
Output: 461045 9423 50717650 8292776
ge-1/1/4.0 <-- down
Input : 139 0 17236 0
Output: 241334 0 26546740 0
ge-1/2/1.0
Input : 162 1 20088 992
Output: 444340 8979 48918653 7901976
ge-1/2/2.0
Input : 310 1 159172 992
Output: 471092 8821 51820058 7762568
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/0/0.0 Actor 127 3c:61:04:2f:c7:c0 127 1 1
ge-0/0/0.0 Partner 127 3c:61:04:2d:9f:c0 127 1 1
ge-1/1/4.0 Actor 127 3c:61:04:2f:c7:c0 127 4 1
ge-1/1/4.0 Partner 1 00:00:00:00:00:00 1 4 1
ge-1/2/1.0 Actor 127 3c:61:04:2f:c7:c0 127 8 1
ge-1/2/1.0 Partner 127 3c:61:04:2d:9f:c0 127 8 1
ge-1/2/2.0 Actor 127 3c:61:04:2f:c7:c0 127 9 1
ge-1/2/2.0 Partner 127 3c:61:04:2d:9f:c0 127 9 1
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/0/0.0 161 156 0 0
ge-1/1/4.0 151 145 0 0
ge-1/2/1.0 158 154 0 0
ge-1/2/2.0 159 154 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/0/0.0 0 0 0 0
ge-1/1/4.0 0 0 0 0
ge-1/2/1.0 0 0 0 0
ge-1/2/2.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1699, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.0.1/24, Local: 10.0.1.1, Broadcast: 10.0.1.255, Generation: 1501
Protocol iso, MTU: 1497, Generation: 1700, Route table: 0
Flags: Is-Primary
Protocol multiservice, MTU: Unlimited, Generation: 1701, Route table: 0
Flags: Is-Primary
Policer: Input: __default_arp_policer__
user@R0> show interfaces ae1.0 extensive
Logical interface ae1.0 (Index 336) (SNMP ifIndex 666) (Generation 826)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 817 5 219555 4672
Output: 1756031 35775 193270683 31483104
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/1/6.0
Input : 174 1 21024 992
Output: 411469 8414 45261286 7404544
ge-1/1/6.0
Input : 159 1 19716 992
Output: 433700 8893 47707000 7826296
ge-1/2/0.0
Input : 161 1 19964 992
Output: 447338 9190 49314819 8087408
ge-1/2/3.0
Input : 323 2 158851 1696
Output: 463524 9278 50987578 8164856
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/1/6.0 Actor 127 3c:61:04:2f:c7:c0 127 2 2
ge-0/1/6.0 Partner 127 3c:61:04:2d:9f:c0 127 2 2
ge-1/1/6.0 Actor 127 3c:61:04:2f:c7:c0 127 6 2
ge-1/1/6.0 Partner 127 3c:61:04:2d:9f:c0 127 6 2
ge-1/2/0.0 Actor 127 3c:61:04:2f:c7:c0 127 7 2
ge-1/2/0.0 Partner 127 3c:61:04:2d:9f:c0 127 7 2
ge-1/2/3.0 Actor 127 3c:61:04:2f:c7:c0 127 10 2
ge-1/2/3.0 Partner 127 3c:61:04:2d:9f:c0 127 10 2
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/1/6.0 159 153 0 0
ge-1/1/6.0 157 151 0 0
ge-1/2/0.0 157 153 0 0
ge-1/2/3.0 158 153 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/1/6.0 0 0 0 0
ge-1/1/6.0 0 0 0 0
ge-1/2/0.0 0 0 0 0
ge-1/2/3.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1702, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.1.1/24, Local: 10.1.1.1, Broadcast: 10.1.1.255, Generation: 1503
Protocol iso, MTU: 1497, Generation: 1703, Route table: 0
Protocol multiservice, MTU: Unlimited, Generation: 1704, Route table: 0
Policer: Input: __default_arp_policer__
user@R0> show interfaces ae2.0 extensive
Logical interface ae2.0 (Index 337) (SNMP ifIndex 961) (Generation 827)
Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
Statistics Packets pps Bytes bps
Bundle:
Input : 813 4 237569 3968
Output: 1786258 37008 196605473 32568272
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Link:
ge-0/1/8.0
Input : 163 1 20212 992
Output: 446715 9282 49138650 8168408
ge-1/1/5.0
Input : 162 1 20088 992
Output: 443846 9209 48822970 8104224
ge-1/2/8.0
Input : 161 1 19964 992
Output: 443943 9341 48833699 8220624
ge-1/3/3.0
Input : 327 1 177305 992
Output: 451754 9176 49810154 8075016
Aggregate member links: 4
LACP info: Role System System Port Port Port
priority identifier priority number key
ge-0/1/8.0 Actor 127 3c:61:04:2f:c7:c0 127 3 3
ge-0/1/8.0 Partner 127 3c:61:04:2d:9f:c0 127 3 3
ge-1/1/5.0 Actor 127 3c:61:04:2f:c7:c0 127 5 3
ge-1/1/5.0 Partner 127 3c:61:04:2d:9f:c0 127 5 3
ge-1/2/8.0 Actor 127 3c:61:04:2f:c7:c0 127 11 3
ge-1/2/8.0 Partner 127 3c:61:04:2d:9f:c0 127 11 3
ge-1/3/3.0 Actor 127 3c:61:04:2f:c7:c0 127 12 3
ge-1/3/3.0 Partner 127 3c:61:04:2d:9f:c0 127 12 3
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-0/1/8.0 157 153 0 0
ge-1/1/5.0 160 153 0 0
ge-1/2/8.0 159 154 0 0
ge-1/3/3.0 159 154 0 0
Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx
ge-0/1/8.0 0 0 0 0
ge-1/1/5.0 0 0 0 0
ge-1/2/8.0 0 0 0 0
ge-1/3/3.0 0 0 0 0
Protocol inet, MTU: 1500, Generation: 1705, Route table: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 10.2.1/24, Local: 10.2.1.1, Broadcast: 10.2.1.255, Generation: 1505
Protocol iso, MTU: 1497, Generation: 1706, Route table: 0
Protocol multiservice, MTU: Unlimited, Generation: 1707, Route table: 0
Policer: Input: __default_arp_policer__
Significado
O IS-IS infere que o pacote ae0 tem apenas 3G de largura de banda disponível. Portanto, modifica o balanceamento de carga por pacote de acordo com a largura de banda disponível. De acordo com a saída, apenas 27% da largura de banda está disponível no ae0 porque um dos links Ethernet agregados está inativo. Assim, o IS-IS distribui o tráfego de forma desigual, dependendo da largura de banda disponível.
Verificando a distribuição desigual de tráfego em interfaces lógicas
Finalidade
Para verificar se o IS-IS distribui o tráfego de forma desigual em interfaces lógicas com base na largura de banda lógica configurada.
Ação
user@R0> show interfaces ae1.1
Logical interface ae1.1 (Index 605) (SNMP ifIndex 1910)
Flags: Up SNMP-Traps 0x4000 VLAN-Tag [ 0x8100.1 ] Encapsulation: ENET2
Bandwidth: 2000mbps
Statistics Packets pps Bytes bps
Bundle:
Input : 807 0 200537 360
Output: 277 0 55529 0
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Protocol inet, MTU: 1500
Max nh cache: 75000, New hold nh limit: 75000, Curr nh cnt: 1, Curr new hold cnt: 0, NH drop cnt: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 13.1.1/24, Local: 13.1.1.2, Broadcast: 13.1.1.255
Protocol iso, MTU: 1497
Protocol multiservice, MTU: Unlimited
user@R0> show interfaces ae1.2
Logical interface ae1.2 (Index 606) (SNMP ifIndex 1911)
Flags: Up SNMP-Traps 0x4000 VLAN-Tag [ 0x8100.2 ] Encapsulation: ENET2
Bandwidth: 1000mbps
Statistics Packets pps Bytes bps
Bundle:
Input : 836 0 208643 720
Output: 305 0 61006 0
Adaptive Statistics:
Adaptive Adjusts: 0
Adaptive Scans : 0
Adaptive Updates: 0
Protocol inet, MTU: 1500
Max nh cache: 75000, New hold nh limit: 75000, Curr nh cnt: 1, Curr new hold cnt: 0, NH drop cnt: 0
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 13.2.1/24, Local: 13.2.1.2, Broadcast: 13.2.1.255
Protocol iso, MTU: 1497
Protocol multiservice, MTU: Unlimited