Cisco ASR 9000 User Manual

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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
Troubleshooting the Cisco IOS XR Software
Interfaces Not Coming Up
In the following example, the open configuration sessions are displayed with the show configuration
sessions command. The clear configuration sessions command is then used to clear a configuration
session.
RP/0/RSP0/CPU0:router# show configuration sessions
Session Line User Date Lock
00000211-002c409b-00000000 con0_RSP1_CPU0 UNKNOWN Mon Feb 2 01:02:09 2004
RP/0/RSP0/CPU0:router# clear configuration sessions 00000211-002c409b-00000000
session ID '00000211-002cb09b-00000000' terminated
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 of Information” section on page 135.
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 36.
Verifying the System Interfaces
Perform the following steps to verify the system interfaces.
Ta b l e 35 Session Commands
Command Description
show configuration sessions Displays the active configuration sessions.
clear configuration sessions session-id Clears a configuration session.
Table 36 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 gi0/1/0/0
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.

Cisco ASR 9000 Specifications

General

Operating System	Cisco IOS XR
Management	CLI, SNMP, NETCONF, RESTCONF
Type	Edge Router
Interface Support	10G, 40G, 100G, 400G
Power Supply	AC and DC options available
Routing Protocol	BGP, IS-IS, OSPF, EIGRP
Storage	SSD
Operating Temperature	0 to 40°C (32 to 104°F)
Humidity	5 to 95% (noncondensing)
Redundancy	Yes (Power, Fabric, Route Processor)
MTBF	Varies by model (typically > 200, 000 hours)