eXR: mapeamento de interface de gerenciamento padrão

Pergunta

Não vemos a segunda interface de gerenciamento no ASR-9901.

               Intf Intf LineP Encap MTU BW

               Tipo de Estado do Estado do Nome (byte) (Kbps)

--------------------------------------------------------------------------------

                Nu0 up Nulo 1500 0

    Mg0/RSP0/CPU0/0 up ARPA 1514 1000000

          Gi0/0/0/0 up ARPA 1514 1000000

Resposta

No eXR, um MgmtEth está disponível para a VM XR e a outra interface MgmtEth para a VM Admin.

Saída CLI

P/0/RSP1/CPU0:ASR-9904-eXR#show interfaces brief | i Mg

Qui Out 10 08:07:37.708 HKT

    Mg0/RSP0/CPU0/0 up ARPA 1514 100000

    Mg0/RSP1/CPU0/0 down ARPA 1514 1000000

RP/0/RSP1/CPU0:ASR-9904-eXR#admin

Qui Out 10 08:07:42.689 HKT

syzaidi conectado de 127.0.0.1 usando o console em sysadmin-vm:0_RSP0

sysadmin-vm:0_RSP0# show interface ?

Descrição: Management Interfaces

Possíveis conclusões:

  MgmtEth0/RSP0/0/0

  MgmtEth0/RSP1/0/0

  |                   Modificadores de saída

  <cr>

sysadmin-vm:0_RSP0# show interface

Perguntas freqüentes:

1) Posso configurar a interface de gerenciamento na VM do administrador? 

Sim, ele pode ser configurado com um endereço ip da seguinte maneira: 

sysadmin-vm:0_RSP0(config)# int MgmtEth 0/RSP0/0/0 ?
Possible completions:
  arp          Configure static ARP entry
  default-gw   Default Gateway address: A.B.C.D
  ipv4         IPv4 parameters
  mtu          MTU for interface
  shutdown     Shut the interface down
  <cr>         
sysadmin-vm:0_RSP0(config)# 

2) Posso usar este ip de gerenciamento para telnet/ ssh ou acesso fora da banda? 

Não, essa interface não é exposta ao mundo exterior. 

3) Qual é a finalidade da interface de gerenciamento na VM do administrador? 

Essa interface pode ser usada para copiar arquivos do roteador para o loc externo usando a interface mgmt.

4) Se um usuário desligar a interface de gerenciamento na VM do administrador, perderemos o acesso à VM do administrador? 

Não, o desligamento da interface não bloqueia o acesso à VM do administrador. Verifique abaixo: 

sysadmin-vm:0_RSP0(config)# interface MgmtEth 0/RSP0/0/0
Wed Mar  31 19:20:15.547 UTC+00:00
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# shut 
Wed Mar  31 19:20:19.472 UTC+00:00
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# commit
Wed Mar  31 19:20:22.438 UTC+00:00
Commit complete.
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# 
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# 
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# exit
Wed Mar  31 19:20:25.529 UTC+00:00
sysadmin-vm:0_RSP0(config)# exit
Wed Mar  31 19:20:27.353 UTC+00:00
sysadmin-vm:0_RSP0# 
sysadmin-vm:0_RSP0# 
sysadmin-vm:0_RSP0# sh int
Wed Mar  31 19:20:29.235 UTC+00:00
MgmtEth0/RSP0/0/0  Link encap: Ethernet  HWaddr 02:b3:90:92:72:98
  inet  addr: 0.0.0.0
  DOWN BROADCAST MULTICAST   MTU:1500  Metric:1    <<< port is down. 
  RX packets:          0 errors:0 dropped:0 overruns:0   frame:0
  TX packets:          5 errors:0 dropped:0 overruns:0 carrier:0
                         collisions:0 txqueuelen:1000
  RX bytes:                     0  TX bytes:                   398

sysadmin-vm:0_RSP0# exit
Wed Mar  31 19:20:34.518 UTC+00:00
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#admin
Wed Mar 31 19:20:36.732 UTC

saavadha connected from 127.0.0.1 using console on sysadmin-vm:0_RSP0
sysadmin-vm:0_RSP0# exit  <<< we are still able to connect to the admin VM.
Wed Mar  31 19:20:41.461 UTC+00:00
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#conf t
Wed Mar 31 19:20:44.587 UTC
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1(config)#exit   
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#admin conf
Wed Mar 31 19:21:03.263 UTC
Mar 31 19:21:03 : ADMIN-CLI: ERROR: ABORT: Please run this command from admin prompt
RP/0/RSP0/CPU0:ASR-9904-E-eXR_NPE1#admin
Wed Mar 31 19:21:05.319 UTC

saavadha connected from 127.0.0.1 using console on sysadmin-vm:0_RSP0
sysadmin-vm:0_RSP0# con
Possible completions:
  config       Manipulate software configuration information
  controller   Access to hardware controller data
sysadmin-vm:0_RSP0# config 
Wed Mar  31 19:21:09.125 UTC+00:00
Entering configuration mode terminal
sysadmin-vm:0_RSP0(config)# interface MgmtEth 0/RSP0/0/0
Wed Mar  31 19:21:19.887 UTC+00:00
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# no shut
Wed Mar  31 19:21:21.662 UTC+00:00
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# commit
Wed Mar  31 19:21:23.798 UTC+00:00
Commit complete.
sysadmin-vm:0_RSP0(config-MgmtEth-0/RSP0/0/0)# exit
Wed Mar  31 19:21:25.293 UTC+00:00
sysadmin-vm:0_RSP0(config)# exit
Wed Mar  31 19:21:26.162 UTC+00:00
sysadmin-vm:0_RSP0# 
sysadmin-vm:0_RSP0# 
sysadmin-vm:0_RSP0# sh int
Wed Mar  31 19:21:27.967 UTC+00:00
MgmtEth0/RSP0/0/0  Link encap: Ethernet  HWaddr 02:b3:90:92:72:98
  inet  addr: 0.0.0.0
  UP RUNNING BROADCAST MULTICAST   MTU:1500  Metric:1
  RX packets:          0 errors:0 dropped:0 overruns:0   frame:0
  TX packets:         11 errors:0 dropped:0 overruns:0 carrier:0
                         collisions:0 txqueuelen:1000
  RX bytes:                     0  TX bytes:                   906

sysadmin-vm:0_RSP0#