Alcatel Carrier Internetworking Solutions 6800 User Manual

Troubleshooting IPC on OS-6/7/8XXX Series of Switches

Troubleshooting the Switch System

page 1-28

OmniSwitch Troubleshooting Guide

LocalPool: Full size is 64, remaining: 64

In socket queues: 0 Not queued: 0:
In DMA queues: 0

Each type of pool has the following listed in the command output:

• Maximum size of buffers available

• Currently available buffers

• Socket Queues being used

• Not Queued in pool

• Direct Memory Access Queues

Currently available buffers should always be around the maximum available in normal operation. In some 
scenarios, it might happen that the remaining pools are decrementing at a fast rate and are never freeing up 
the buffers. This can lead to problem with IPC. 

Iterative use of the command will help to identify the situation.

An example is as follows:

Working: [Kernel]->ipc_pools
UrgentPool: Full size is 1024, remaining: 1024

In socket queues: 0 Not queued: 0:
In DMA queues: 0

ControlPool: Full size is 5096, remaining: 5062

In socket queues: 4 Not queued: 20:
In DMA queues: 10

NormalPool: Full size is 2024, remaining: 2022

In socket queues: 0 Not queued: 2:
In DMA queues: 0

JumboPool: Full size is 256, remaining: 255

In socket queues: 1 Not queued: 0:
In DMA queues: 0

LocalPool: Full size is 64, remaining: 64

In socket queues: 0 Not queued: 0:
In DMA queues: 0

Working: [Kernel]->ipc_pools
UrgentPool: Full size is 1024, remaining: 1024

In socket queues: 0 Not queued: 0:
In DMA queues: 0

ControlPool: Full size is 5096, remaining: 5060

In socket queues: 6 Not queued: 20:
In DMA queues: 10

NormalPool: Full size is 2024, remaining: 2022

In socket queues: 0 Not queued: 2:
In DMA queues: 0

JumboPool: Full size is 256, remaining: 255

In socket queues: 1 Not queued: 0:
In DMA queues: 0