Cisco BPX 8600 Series Switches

Document ID: 27605

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Background Theory
      Conventions
Problem
Solution
      Using the cnfnodeparmm Command
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Related Information

Introduction

This document provides explanation and solution to the problem error message Not enough Auto Stats Memory, Reconfigure using cnfnodeparm, which occurs when you are provisioning a line or trunk interface on an IGX or BPX switch. Refer to Troubleshooting Problems When Adding a Trunk for more troubleshooting assistance for problems with adding trunks.

Prerequisites

Requirements

Before using the information in this document, please ensure that you meet the following prerequisites:

• You should be knowledgeable of IGX and BPX platforms.

Components Used

The information in this document is based on the software and hardware versions below.

• All IGX and BPX hardware revisions

• All IGX and BPX software revisions

Background Theory

Auto statistics, also referred to as IGX or BPX statistics, are used for the IGX/BPX switch statistical alarming feature. The statistics are automatically allocated when certain statistical entities are upped or added. Auto statistic entities on the IGX include adaptive differential pulse code modulation (ADPCM), pulse code modulation (PCM), transparent and data connections, as well as trunks and lines. Auto statistic entities on the BPX are trunks, lines, and cards.

When you use the uptrk or upln command (for either a virtual or physical interface), the switch software verifies if there is enough statistics memory to allow the operation. If the node has the required memory then the software reserves that memory and allows the command to execute. If the node does not have the required memory, the software blocks this command and provides the Not enough Auto Stats Memory, Reconfigure using cnfnodeparm error message. If you get this error message, you need to increase the Auto statistics memory before the trunk or line can be activated.

Auto statistics share the same space as the Trivial File Transfer Protocol (TFTP) statistics memory region which is called STATRGN. The TFTP statistics memory is where the user-enabled statistic files are kept. The following formula always stays true:

TFTP statistics memory + Auto statistics memory = Total statistics memory.

With this formula taken into account, you need to decrease the portion of memory allocated to TFTP statistics to increase the portion of memory allocated to Auto statistics.

Conventions

For more information on document conventions, see the Cisco Technical Tips Conventions.

Problem

When you use the uptrk or upln command on an IGX/BPX switch, the command may fail with the following error message:

Not enough Auto Stats Memory, Reconfigure using cnfnodeparm

Solution

The solution to this problem is explained in detail below.

Using the cnfnodeparmm Command

Use the cnfnodeparm command to decrease the portion of memory allocated to TFTP statistics.

For an IGX, you need to adjust index 19 (the parameter name is TFTP Memory) of the cnfnodeparm command to change the portion of memory allocated to TFTP statistics. You can configure the TFTP Memory in the range from 0 to 210 (default).

For a BPX, you need to adjust index 16 (the parameter name is Stats Memory) of the cnfnodeparm command to change the portion of memory allocated to TFTP statistics. You can configure the Stats Memory in the range from 0 to 132 (default).

The following table summarizes this information:

The following table shows the Auto statistics memory requirements for the various IGX UXM card types (in bytes):

The following table shows the Auto statistics memory requirements for the various BPX BXM card types (in bytes):

Use the dspstatmem command to verify the current statistics memory allocation before you change the value of the memory to determine how much memory is available.

There are two different memory partitions shown when you use the dspstatmem command; one for USER (TFTP) and one for AUTO:

• Stat Memory Partition—The maximum value you can configure for the TFTP statistics memory.

• Auto Memory Partition—The maximum value you can configure for the Auto statistics memory.

The following illustration shows an example output for the dspstatmem command:

g6 TN StrataCom IGX 8420 9.1.30 Sep. 30 2002 06:14 GMT 

USER / TFTP STATS
Stat Memory Partition: 2150400
Stat Memory (Recs) Allocated: 0
File Memory Allocated: 0
Total Stat Memory Allocated: 0

AUTO STATS
Auto Memory Partition: 307200
Auto Memory Allocated: 9920

Last Command: dspstatmem

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Related Information

• Cisco WAN Switching Solutions – Cisco Documentation
• Guide to New Names and Colors for WAN Switching Products
• Downloads – WAN Switching Software
• Technical Support – Cisco Systems