Cisco Systems Cisco IOS XR Manual De Usuario
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Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter 7 Troubleshooting the Cisco IOS XR Software
Memory Warnings in Configuration Sessions
“ERROR! MEMORY IS IN SEVERE (or CRITICAL) STATE”
When the memory is in a severe or critical state, router operation and performance is likely to be
affected. Regular users are not allowed to enter configuration mode. Only lr-root owners can enter
configuration mode to free memory by removing configurations.
affected. Regular users are not allowed to enter configuration mode. Only lr-root owners can enter
configuration mode to free memory by removing configurations.
In some situations, the commit command is not allowed. Users with lr-root access can still use the
commit force command to apply configurations that reduce memory usage. Reducing memory usage
normally means removing configurations, but a user can also add configurations that reduce memory
usage. For example, configuring the shutdown command on an interface could cause numerous routes
to be purged from Border Gateway Protocol (BGP), the Routing Information Base (RIB), and
Forwarding Information Base (FIB) configurations.
commit force command to apply configurations that reduce memory usage. Reducing memory usage
normally means removing configurations, but a user can also add configurations that reduce memory
usage. For example, configuring the shutdown command on an interface could cause numerous routes
to be purged from Border Gateway Protocol (BGP), the Routing Information Base (RIB), and
Forwarding Information Base (FIB) configurations.
Caution
The commit force command should be used only to apply configurations that reduce memory usage.
Adding configurations that increase memory usage could result in serious loss of router operation.
Adding configurations that increase memory usage could result in serious loss of router operation.
Displaying System Memory Information
To display a high level summary of system memory, enter the show memory summary command.
describes the meaning of each heading.
RP/0/RP0/CPU0:router# show memory summary
Physical Memory: 2048M total
Application Memory : 1787M (1509M available)
Image: 132M (bootram: 132M)
Reserved: 128M, IOMem: 0, flashfsys: 0
Total shared window: 0
RP/0/RP1/CPU0:router#
To display general memory usage for the device as a whole and by process, enter the show memory
command.
command.
RP/0/RP0/CPU0:router# show memory
Physical Memory: 2048M total
Application Memory : 1787M (1510M available)
Image: 132M (bootram: 132M)
Reserved: 128M, IOMem: 0, flashfsys: 0
Total shared window: 0
kernel: jid 1
Address Bytes What
000d2000 12288 Program Stack
00112000 12288 Program Stack
Total Allocated Memory: 0
Total Shared Memory: 0
pkg/bin/wd-mbi: jid 72
Address Bytes What
4817f000 4096 Program Stack (pages not allocated)
48180000 516096 Program Stack (pages not allocated)
481fe000 8192 Program Stack
48200000 8192 Program Text
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