Field Notice: Cisco IOS 12.0(7)S1

Revised December 3, 1999

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Products Affected

Product	Description
Cisco 12000 Series Routers	With one Port OC-48c/STM-16c SONET/SDH enhanced line cards installed
OC48E/POS-SR-SC	One Port OC-48c/STM-16c SONET/SDH enhanced 1310nm SR with SC
OC48E/POS-SR-FC	One Port OC-48c/STM-16c SONET/SDH enhanced 1310nm SR with FC
OC48E/POS-1550-SC	One Port OC-48c/STM-16c SONET/SDH enhanced 1550nm LR with SC
OC48E/POS-1550-FC	One Port OC-48c/STM-16c SONET/SDH enhanced 1550nm LR with FC
Cisco 7500 Series Routers
Cisco 7200 Series Routers

Problem Description

Cisco IOS 12.0(7)S will be deferred due to two software defects, CSCdp17433 and CSCdp31259. Cisco IOS 12.0(7)S1 will replace 12.0(7)S. Other software repairs have also been integrated into 12.0(7)S1 (See DDTS Section below).

CSCdp17433

A process memory leak affecting the Cisco7200, Cisco 7500 and Cisco 12000 series routers. The symptom displays large amounts of memory being absorbed in either the IPC (InterProcess Communication) or FIB (Forwarding Information Base) process.

CSCdp31259

The 12000 Series Performance OC48 Linecard will not boot if the fabric downloader is upgraded with the affected Cisco IOS image. 9

Background

CSCdp17433

CSCdp04303 created the CSCdp17433 problem. CSCdm48200 is integrated in a few Cisco IOS trains but it only affects Cisco IOS 12.0S and 12.0SC (See Cisco IOS Versions Affected below for details).

CSCdp31259

CSCdp04303 created the CSCdp31259 problem. Only Cisco IOS 12.0S is affected.(See Cisco IOS Versions Affected below for details).

Problem Symptoms

CSCdp17433

The symptom displays large amounts of memory being absorbed in either the IPC (InterProcess Communication) or FIB (Forwarding Information Base) process. 3

CSCdp31259

The symptom shows the Cisco 12000 Series Performance OC48 line cards not booting correctly after an IOS upgrade to 12.0(7)S, which included upgrading the fabric downloader. This happens if the fabric downloader is upgraded as a result of one of the following commands.

Command	Mode
service upgrade all	configuration
upgrade all all	enabled exec
upgrade fabric-downloader all	enabled exec
upgrade fabric-downloader [slot#]	enabled exec

Workaround/Solution

Workaround

CSCdp17433

No workaround.

CSCdp31259

This symptom can be avoided by not upgrading the fabric downloader when installing the new IOS image. If you must install the new image before a fix for this bug is integrated, remove the service upgrade all command from the configuration to prevent the fabric downloader upgrade. The following error messages will appear stating that the fabric downloader must be upgraded:

WARNING: Old Rom Monitor in slot 0
Use "upgrade rom-monitor" command to update the image
WARNING: Old Fabric Downloader in slot 0
Use "upgrade fabric-downloader" command to update the image
WARNING: Old Rom Monitor in slot 1
Use "upgrade rom-monitor" command to update the image

Solution

CSCdp17433 and CSCdp31259

• Upgrade to 12.0(7)S1 or a later release.

Cisco will be releasing a rebuild release, 12.0(7)S1. Cisco IOS 12.0(7)S1 will replace 12.0(7)S. Cisco IOS 12.0(7)S1 release forecast:

• Available via CCO: December 1, 1999

• Available via Manufacturing: December 6, 1999

DDTS

This field notice deals with the following Cisco bug IDs. If you are a registered CCO user and you have logged in, you can view the bug details.

DDTS	Description	Severity
CSCdp17433 (registered customers only)	Deferral Required: Memory leak with FIB path chunks never freed	1
CSCdp31259 (registered customers only)	Deferral Required: Performance OC48 fabric loader broken	1
CSCdp35794 (registered customers only)	GigE intermittently locks up and requires a microcode reload	12
CSCdp05571 (registered customers only)	Access control lists statistics not accessible	2
CSCdp11442 (registered customers only)	MerlinPA: problem with fairness	2
CSCdp21343 (registered customers only)	OC-12 ATM VC rates are 0, states stay at INACTIVE	2
CSCdm82546 (registered customers only)	Performance cards cannot load balance between IP and tag adjacencies	2
CSCdp35359 (registered customers only)	Access list on the command tag adv for 1 to 2 failed	2
CSCdm64405 (registered customers only)	APS: jumbo patch	3
CSCdp23156 (registered customers only)	Merlin: fairness correction (MAC FPGA 296 update)	3
CSCdp24026 (registered customers only)	CAR: input rate counter doubles with rate limit statement	5
CSCdp27083 (registered customers only)	ip prop-ttl not working if perf-OC48-LC router is penultimate-hop	2
CSCdp29704 (registered customers only)	ip prop-ttl not working if perf-OC48-LC router is head-end	2
CSCdp39843 (registered customers only)	MPLS-TE:RSVP:crash in rsvp_delete_tag_reservation	1
CSCdp41376 (registered customers only)	Perf-OC48-crash in psa_hash_lock_adjacency	1
CSCdp35269 (registered customers only)	BGP: attributes not set since ACL broke due to CSCdp05571	1

Cisco IOS Versions Affected

The affected images will be removed from CCO and will not be shipped.

IOS Trains Affected	IOS Maintenances Affected	IOS Images Affected
12.0S	12.0(6.5)S through 12.0(7)S	all GSR, RSP and Cisco 7200 images (gsr-*-mz, rsp-*- mz, c7200-*-mz)

How To Upgrade Software

Interim Solution:

Cisco IOS interim software solution must be obtained through the Cisco Technical Assistance Center (TAC).

Maintenance Solution:

To obtain the next maintenance release follow the instructions on the page below:

Software Downloading from CCO via World Wide Web

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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