Cisco Systems A9K24X10GETR Viewing System Memory Information, “Warning! Memory Is In Minor State”

Chapter 6 Troubleshooting the Cisco IOS XR Software

Memory Warnings in Configuration Sessions

F I N A L D R A F T — C i s c o C o n f i d e n t i a l

•During a commit operation that results in the low-memory warning message. The commit operation is denied and only lr-root users can perform commit operations to remove configurations.

Caution Never ignore a low-memory warning. These warnings indicate a memory state that could affect system operations if not addressed.

“WARNING! MEMORY IS IN MINOR STATE”

If the system memory begins to run low, the following minor memory warning appears when you enter a new configuration mode.

WARNING! MEMORY IS IN MINOR STATE

Although users are allowed to enter configuration mode, they should immediately reduce memory usage using the tools described in the “Removing Configurations to Resolve Low-Memory Warnings” section on page 6-9.

Failure to take action can result in a worsening situation and eventual impact to router operations.

“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.

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 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.

Viewing System Memory Information

To display a high level summary of system memory, type the show memory summary command. describes the meaning of each heading.

RP/0/RSP0/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/RSP1/CPU0:router#

To display general memory usage for the device as a whole and by process, type the show memory command. describes the meaning of each heading.

RP/0/RSP0/CPU0:router# show memory

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

6-8 OL-17502-01