eXR:默认管理接口映射
问题
我们在ASR-9901上看不到第二个管理接口。
Intf Intf LineP封装MTU BW
名称状态类型（字节）(Kbps)
—
Nu0 up Null 1500 0
Mg0/RSP0/CPU0/0上行ARPA 1514 1000000
Gi0/0/0/0up ARPA 1514 1000000
答案
在eXR中，XR VM可使用一个MgmtEth，管理VM可使用另一个MgmtEth接口。
CLI输出
P/0/RSP1/CPU0:ASR-9904-eXR#show interfaces brief |i Mg
10月10日星期四08:07:37.708 HKT
Mg0/RSP0/CPU0/0上行ARPA 1514 100000
Mg0/RSP1/CPU0/0向下关闭ARPA 1514 1000000
RP/0/RSP1/CPU0:ASR-9904-eXR#admin
10月10日星期四08:07:42.689 HKT
syzaidi从127.0.0.1连接，使用sysadmin-vm:0_RSP0上的控制台
sysadmin-vm:0_RSP0# show interface ?
描述:管理接口
可能的完成：
MgmtEth0/RSP0/0/0
MgmtEth0/RSP1/0/0
|输出修饰符
<cr>
sysadmin-vm:0_RSP0# show interface
1)能否在管理VM中配置管理接口？
是，可以使用IP地址进行配置，如下所示：
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)我能否将此mgmt ip用于telnet/ssh或带外访问？
不，此接口不对外部世界开放。
3)管理VM中的mgmt接口有何用途？
此接口可用于使用mgmt将文件从路由器复制到外部位置。接口.
4)如果用户关闭管理VM中的管理接口，我们是否会失去对管理VM的访问权限？
否，关闭接口不会阻止对管理VM的访问，请检查以下内容：
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# 
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