eXR :預設管理介面對映

問題

我們沒有看到ASR-9901上的第二個管理介面。

               Intf Intf LineP封裝MTU BW

               名稱狀態狀態型別（位元組）(Kbps)

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

                Nu0啟動Null 1500 0

    Mg0/RSP0/CPU0/0上行ARPA 1514 1000000

          Gi0/0/0/0上行ARPA 1514 1000000

答案

在eXR中，一個MgmtEth可用於XR VM，另一個MgmtEth介面可用於Admin VM。

CLI輸出

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

10月10日週四08:07:37.708 HKT

    Mg0/RSP0/CPU0/0上行ARPA 1514 100000

    Mg0/RSP1/CPU0/0向下按ARPA 1514命1000000

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

10月10日週四08:07:42.689 HKT

syzaidi使用sysadmin-vm:0_RSP0上的控制檯從127.0.0.1連線

sysadmin-vm:0_RSP0# show interface ?

說明:管理介面

可能的完成：

  管理Eth0/RSP0/0/0

  管理Eth0/RSP1/0/0

  |輸出修飾符

  <cr>

sysadmin-vm:0_RSP0# show interface

常見問題:

1)是否可以在管理虛擬機器中配置管理介面？ 

可以，可以按如下方式配置IP地址： 

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
  
     
     
       sysadmin-vm:0_RSP0(config)# 
     

2)是否可以將此管理ip用於telnet/ssh或帶外訪問？ 

不，此介面不對外開放。 

3)管理VM中的管理介面有何用途？ 

此介面可用於使用mgmt將檔案從路由器複製到外部位置。介面.

4)如果使用者關閉管理虛擬機器中的管理介面，我們會失去對管理虛擬機器的訪問許可權嗎？ 

否，關閉介面不會阻止對管理VM的訪問，請檢查以下內容： 

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#