close

keyboard_arrow_left

Table of Contents Expand all

list Table of Contents

Nesta página

Configuração do SCU
Verificando seu trabalho

keyboard_arrow_right

Esta tradução automática foi útil?

Go to English page

ISENÇÃO DE RESPONSABILIDADE:

Esta página será traduzida com software de tradução por máquina de terceiros. Embora esforços razoáveis tenham sido feitos para fornecer uma tradução de qualidade, a Juniper Networks não pode garantir sua exatidão. Se houver dúvidas sobre a exatidão das informações contidas nesta tradução, consulte a versão em inglês. O PDF para download está disponível apenas em inglês.

Configuração do SCU

date_range 18-Jan-25

arrow_backward

arrow_forward

Configuração do SCU

Figura 1: Diagrama de topologia do SCU

Figura 1 mostra uma configuração básica de SCU com três roteadores. Os roteadores de origem A e B usam endereços de loopback como prefixos a serem monitorados. A maioria das tarefas de configuração e monitoramento real ocorre no SCU do roteador de trânsito.

Inicie sua configuração no Roteador A. O endereço de loopback no Roteador A contém a origem do prefixo que deve ser atribuído à classe A de origem no SCU do roteador. No entanto, nenhum processamento de SCU acontece neste roteador. Portanto, configure o Roteador A para o roteamento básico de OSPF e inclua sua interface e interface so-0/0/2 de loopback no processo OSPF.

Roteador A:

content_copy zoom_out_map
[edit]
interfaces {
    so-0/0/2 {
        unit 0 {
            family inet {
                address 10.255.50.2/24;
            }
        }
    }
    lo0 {
        unit 0 {
            family inet {
                address 10.255.192.10/32;
            }
        }
    }
}
protocols {
    ospf {
        area 0.0.0.0 {
            interface so-0/0/2.0;
            interface lo0.0;
        }
    }
}

O SCU do roteador lida com a maior parte da atividade neste exemplo. No Roteador SCU, habilite o uso de classe fonte nas interfaces de entrada e saída no nível hierárquico [edit interfaces interface-name unit unit-number family inet accounting] . Certifique-se de especificar o tráfego esperado: entrada, saída ou, neste caso, ambos.

Em seguida, configure uma declaração de política de filtro de rota que corresponda aos prefixos dos endereços de loopback dos roteadores A e B. Inclua declarações na política que classifica pacotes do Roteador A em um grupo nomeado scu-class-a e pacotes do Roteador B em uma segunda classe nomeada scu-class-b. Observe o uso eficiente de uma única política que contenha vários termos.

Por último, aplique a política na tabela de encaminhamento.

SCU do roteador

content_copy zoom_out_map
[edit]
interfaces {
    so-0/0/1 {
        unit 0 {
            family inet {
                accounting {
                    source-class-usage {
                        input;
                        output;
                    }
                }
                address 10.255.50.1/24;
            }
        }
    }
    so-0/0/3 {
        unit 0 {
            family inet {
                accounting {
                    source-class-usage {
                        input;
                        output;
                    }
                }
                address 10.255.10.3/24;
            }
        }
    }
    lo0 {
        unit 0 {
            family inet {
                address 10.255.6.111/32;
            }
        }
    }
}
protocols {
    ospf {
        area 0.0.0.0 {
            interface so-0/0/1.0;
            interface so-0/0/3.0;
        }
    }
}
routing-options {
    forwarding-table {
        export scu-policy;
    }
}
policy-options {
    policy-statement scu-policy {
        term 0 {
            from {
                route-filter 10.255.192.0/24 orlonger;
            }
            then source-class scu-class-a;
        }
        term 1 {
            from {
                route-filter 10.255.165.0/24 orlonger;
            }
            then source-class scu-class-b;
        }
    }
}

Preencha as tarefas de configuração no Roteador B. Assim como o Roteador A fornece um prefixo de origem, o endereço loopback do Roteador B corresponde ao prefixo atribuído no scu-class-b Roteador SCU. Novamente, nenhum processamento de SCU acontece neste roteador, então configure o Roteador B para o roteamento básico de OSPF e inclua sua interface e interface so-0/0/4 de loopback no processo OSPF.

Roteador B:

content_copy zoom_out_map
[edit]
interfaces {
    so-0/0/4 {
        unit 0 {
            family inet {
                address 10.255.10.4/24;
            }
        }
    }
    lo0 {
        unit 0 {
            family inet {
                address 10.255.165.226/32;
            }
        }
    }
}
protocols {
    ospf {
        area 0.0.0.0 {
            interface so-0/0/4.0;
            interface lo0.0;
        }
    }
}

Verificando seu trabalho

Para verificar se a SCU está funcionando corretamente, use os seguintes comandos:

show interfaces interface-name statistics
show interfaces interface-name (extensive | detail)
show route(extensive | detail)
show interfaces source-class source-class-name interface-name
clear interface interface-name statistics

Você deve sempre verificar as estatísticas do SCU na interface SCU de saída na qual você configurou a output declaração. Você pode executar as três etapas a seguir para verificar a funcionalidade do SCU:

Libere todos os contadores em seu roteador habilitado para SCU e verifique se eles estão vazios.
Envie um ping de um roteador de borda para outro roteador de borda para gerar tráfego de SCU em todo o roteador habilitado para SCU.
Verifique se os contadores estão incrementando corretamente na interface de saída.

A seção a seguir mostra a saída desses comandos conforme usado com o exemplo de configuração.

content_copy zoom_out_map
user@scu> clear interfaces statistics all         

user@scu>  show interfaces so-0/0/1.0 statistics
  Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119) 
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470
      Source class                             Packets                Bytes
                       scu-class-a                    0                    0
                      scu-class-b                    0                    0
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.50/24, Local: 10.255.50.1

user@scu> show interfaces so-0/0/3.0 statistics
  Logical interface so-0/0/3.0 (Index 6) (SNMP ifIndex 113) 
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470
      Source class                             Packets                Bytes
                      scu-class-a                    0                    0
                      scu-class-b                    0                    0
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.10/24, Local: 10.255.10.3

user@scu> show interfaces source-class scu-class-a so-0/0/3.0
    Protocol inet
      Source class                             Packets                Bytes
                      scu-class-a                    0                    0

user@scu> show interfaces source-class scu-class-b so-0/0/1.0
    Protocol inet
      Source class                             Packets                Bytes
                      scu-class-b                    0                    0

user@routerB> ping 10.255.192.10 source 10.255.165.226 rapid 10000

user@routerA> ping 10.255.165.226 source 10.255.192.10 rapid 10000

user@scu> show interfaces source-class scu-class-a so-0/0/3.0
    Protocol inet
      Source class                             Packets                Bytes
                      scu-class-a                20000              1680000

user@scu> show interfaces source-class scu-class-a so-0/0/1.0
    Protocol inet
      Source class                             Packets                Bytes
                      scu-class-b                20000              1680000

user@scu> show interfaces so-0/0/3.0 statistics
  Logical interface so-0/0/3.0 (Index 6) (SNMP ifIndex 113)
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470
      Source class                             Packets                Bytes
                      scu-class-a                20000              1680000
                      scu-class-b                    0                    0
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.10/24, Local: 10.255.10.3

user@scu> show interfaces so-0/0/1.0 statistics
  Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119)
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470
      Source class                             Packets                Bytes
                      scu-class-a                    0                    0
                      scu-class-b                20000              1680000
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.50/24, Local: 10.255.50.1

content_copy zoom_out_map
user@scu> show route extensive 10.255.192.0

inet.0: 26 destinations, 28 routes (25 active, 0 holddown, 1 hidden)
10.255.192.0/18 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.255.192.0/18 -> {so-0/0/1.0}
Source class: scu-class-a
        *OSPF   Preference: 150
                Next hop: via so-0/0/1.0, selected
                State: <Active Int Ext>
                Age: 2:49:31  Metric: 0  Tag: 0 
                Task: OSPF
                Announcement bits (1): 0-KRT 
                AS path: I

content_copy zoom_out_map
user@scu> show route extensive 10.255.165.0         
inet.0: 26 destinations, 28 routes (25 active, 0 holddown, 1 hidden)
10.255.165.0/20 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.255.165.0/20 -> {so-0/0/3.0}
Source class: scu-class-b
        *OSPF   Preference: 150
                Next hop: via so-0/0/3.0, selected
                State: <Active Int Ext>
                Age: 2:49:31  Metric: 0  Tag: 0 
                Task: OSPF
                Announcement bits (1): 0-KRT 
                AS path: I

content_copy zoom_out_map
user@scu> show interfaces so-0/0/1 detail         
Physical interface: so-0/0/1, Enabled, Physical link is Up
  Interface index: 12, SNMP ifIndex: 17, Generation: 11
  Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3,
  Loopback: None, FCS: 16, Payload scrambler: Enabled
  Device flags   : Present Running
  Interface flags: Point-To-Point SNMP-Traps
  Link flags     : Keepalives
  Hold-times     : Up 0 ms, Down 0 ms
  Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
  Keepalive statistics:
    Input : 46 (last seen 00:00:01 ago)
    Output: 45 (last sent 00:00:00 ago)
  LCP state: Opened
  NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls:
  Not-configured
  CHAP state: Not-configured
  Last flapped   : 2002-04-19 11:49:22 PDT (03:10:09 ago)
  Statistics last cleared: 2002-04-19 14:52:04 PDT (00:07:27 ago)
  Traffic statistics:
   Input  bytes  :              1689276                   40 bps
   Output bytes  :              1689747                   48 bps
   Input  packets:                20197                    0 pps
   Output packets:                20200                    0 pps
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0 best-effort                20053                20053                    0
    1 expedited-fo                   0                    0                    0
    2 assured-forw                   0                    0                    0
    3 network-cont                 146                  146                    0
  SONET alarms   : None
  SONET defects  : None
  Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119) (Generation 3)
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470          
      Flags: SCU-in, SCU-out
    Generation: 6 Route table: 0
       Source class                             Packets                Bytes
                      scu-class-a                    0                    0
                      scu-class-b                20000              1680000
      Filters: Input: icmp-so-0/0/1.0-i, Output: icmp-so-0/0/1.0-o
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.50/24, Local: 10.255.50.1, Broadcast: Unspecified,
        Generation: 8

user@scu>  show interfaces so-0/0/1 extensive
Physical interface: so-0/0/1, Enabled, Physical link is Up
  Interface index: 12, SNMP ifIndex: 17, Generation: 11
  Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, Speed: OC3,
  Loopback: None, FCS: 16, Payload scrambler: Enabled
  Device flags   : Present Running
  Interface flags: Point-To-Point SNMP-Traps
  Link flags     : Keepalives
  Hold-times     : Up 0 ms, Down 0 ms
  Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
  Keepalive statistics:
    Input : 51 (last seen 00:00:04 ago)
    Output: 50 (last sent 00:00:05 ago)
  LCP state: Opened
  NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls:
  Not-configured
  CHAP state: Not-configured
  Last flapped   : 2002-04-19 11:49:22 PDT (03:11:05 ago)
  Statistics last cleared: 2002-04-19 14:52:04 PDT (00:08:23 ago)
  Traffic statistics:
   Input  bytes  :              1689884                  264 bps
   Output bytes  :              1690388                  280 bps
   Input  packets:                20215                    0 pps
   Output packets:                20217                    0 pps
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0,
    Bucket drops: 0, Policed discards: 0, L3 incompletes: 0,
    L2 channel errors: 0, L2 mismatch timeouts: 0, HS link CRC errors: 0,
    HS link FIFO overflows: 0
  Output errors:
    Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0,
    HS link FIFO underflows: 0
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0 best-effort                20053                20053                    0
    1 expedited-fo                   0                    0                    0
    2 assured-forw                   0                    0                    0                 
    3 network-cont                 164                  164                    0
  SONET alarms   : None
  SONET defects  : None
  SONET PHY:            Seconds        Count  State
    PLL Lock                  0            0  OK
    PHY Light                 0            0  OK
  SONET section:
    BIP-B1                    0            0
    SEF                       0            0  OK
    LOS                       0            0  OK
    LOF                       0            0  OK
    ES-S                      0
    SES-S                     0
    SEFS-S                    0
  SONET line:
    BIP-B2                    0            0
    REI-L                     0            0
    RDI-L                     0            0  OK
    AIS-L                     0            0  OK
    BERR-SF                   0            0  OK
    BERR-SD                   0            0  OK
    ES-L                      0
    SES-L                     0
    UAS-L                     0
    ES-LFE                    0
    SES-LFE                   0
    UAS-LFE                   0
  SONET path:
    BIP-B3                    0            0
    REI-P                     0            0
    LOP-P                     0            0  OK
    AIS-P                     0            0  OK
    RDI-P                     0            0  OK
    UNEQ-P                    0            0  OK
    PLM-P                     0            0  OK
    ES-P                      0
    SES-P                     0
    UAS-P                     0                    
    ES-PFE                    0
    SES-PFE                   0
    UAS-PFE                   0
  Received SONET overhead:
    F1      : 0x00, J0      : 0x00, K1      : 0x00, K2      : 0x00
    S1      : 0x00, C2      : 0xcf, C2(cmp) : 0xcf, F2      : 0x00
    Z3      : 0x00, Z4      : 0x00, S1(cmp) : 0x00, V5      : 0x00
    V5(cmp) : 0x00
  Transmitted SONET overhead:
    F1      : 0x00, J0      : 0x01, K1      : 0x00, K2      : 0x00
    S1      : 0x00, C2      : 0xcf, F2      : 0x00, Z3      : 0x00
    Z4      : 0x00, V5      : 0x00
  Received path trace: e so-0/0/1
    65 20 73 6f 2d 30 2f 30 2f 31 00 00 00 00 00 00   e so-0/0/1......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a   ................
  Transmitted path trace: scu so-0/0/1
    67 68 62 20 73 6f 2d 30 2f 30 2f 31 00 00 00 00   scu so-0/0/1....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
  HDLC configuration:
    Policing bucket: Disabled
    Shaping bucket : Disabled
    Giant threshold: 4484, Runt threshold: 3
  Packet Forwarding Engine configuration:
    Destination slot: 0, PLP byte: 1 (0x00)
    CoS transmit queue          Bandwidth          Buffer     Priority   Limit
                              %          bps   %        bytes
    0 best-effort             0            0   0            0      low    none
    1 expedited-forwarding    0            0   0            0      low    none
    2 assured-forwarding      0            0   0            0      low    none
    3 network-control         0            0   0            0      low    none
  Logical interface so-0/0/1.0 (Index 4) (SNMP ifIndex 119) (Generation 3)
    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP
    Protocol inet, MTU: 4470
      Flags: SCU-in, SCU-out
    Generation: 6 Route table: 0
       Source class                             Packets                Bytes
                      scu-class-a                    0                    0
                      scu-class-b                20000              1680000
      Filters: Input: icmp-so-0/0/1.0-i, Output: icmp-so-0/0/1.0-o
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 10.255.50/24, Local: 10.255.50.1, Broadcast: Unspecified,
        Generation: 8

arrow_backward PREVIOUS Verificando seu perfil de contabilidade na SCU

NEXT arrow_forward Configuração de SCU com VPNs de camada 3

Políticas de roteamento, filtros de firewall e guia de usuário de policiais de tráfego

Nesta página

Esta tradução automática foi útil?

ISENÇÃO DE RESPONSABILIDADE:

Configuração do SCU

Configuração do SCU

Verificando seu trabalho

Stay in touch

Helped me install or use the product
Accelerated my deployment

Discuss the product with a co-worker
Make a purchase inquiry

Políticas de roteamento, filtros de firewall e guia de usuário de policiais de tráfego

Nesta página

Esta tradução automática foi útil?

ISENÇÃO DE RESPONSABILIDADE:

Configuração do SCU

Configuração do SCU

Verificando seu trabalho

Tópicos relacionados

Stay in touch