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Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter 7 Troubleshooting the Cisco IOS XR Software
Interfaces Not Coming Up
Contacting TAC for Additional Assistance
If you remove configurations and the low-memory condition remains, you may need to contact TAC for
additional assistance. See the “Additional Sources for Information” section on page 7-1.
Interfaces Not Coming Up
The router interfaces are directly used in processing network traffic, so their status information is crucial
to understanding how the device is functioning. This section contains information on the EXEC mode
commands used to verify that the router interfaces are operational. The basic commands used in this
process are summarized in Table 7-4.
Verifying the System Interfaces
Perform the following steps to verify the system interfaces.
Step 1 Enter the show platform command in administration EXEC to verify that all nodes are in the “IOS XR
RUN” state:
RP/0/RP0/CPU0:router(admin)# show platform
Node Type PLIM State Config State
-----------------------------------------------------------------------------
0/1/SP MSC(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/1/CPU0 MSC 16OC48-POS/DPT IOS XR RUN PWR,NSHUT,MON
0/2/SP MSC(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/2/CPU0 MSC 16OC48-POS/DPT IOS XR RUN PWR,NSHUT,MON
0/3/SP MSC(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/3/CPU0 MSC 16OC48-POS/DPT IOS XR RUN PWR,NSHUT,MON
0/RP0/CPU0 RP(Active) N/A IOS XR RUN PWR,NSHUT,MON
0/RP1/CPU0 RP(Standby) N/A IOS XR RUN PWR,NSHUT,MON
0/SM0/SP FC/S(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/SM1/SP FC/S(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/SM2/SP FC/S(SP) N/A IOS XR RUN PWR,NSHUT,MON
0/SM3/SP FC/S(SP) N/A IOS XR RUN PWR,NSHUT,MON
Table 7-4 show interface Commands
Command Description
show interfaces Displays detailed information about all interfaces installed or
configured on the device, whether or not they are operational.
show interfaces type instance Specifies a particular interface, rather than displaying information for
all interfaces, as in the following example:
show interface POS0/1/0/0
show ipv4 interface
show ipv6 interface
Displays basic, IP-related information for all available interfaces.
show ipv4 interface brief
show ipv6 interface brief
Quickly displays the most critical information about the interfaces,
including the interface status (up or down) and the protocol status.