Cisco BPX 8600 Series Switches

Field Notice: BCC-4V Card Requires 8.4.18 Switch Software and H.H.M. Boot Code

March 27, 1998

Products Affected


(BPX BCC-3-64)

Problem Description

In the following circumstance, there will be a reduction in memory size from 64M to 32M which can result in lost connections (and possibly other problems):

  • a BCC-4V is installed in a node as a standby controller, and

  • the node has a BCC-3-64 as the active processor, and

  • the node is running a version of switch software lower than 8.4.18, and

  • the node switches controllers for some reason


BCC-4V cards physically have 128 Mbytes of memory. Versions of switch software below 8.4.18, however, do not recognize the memory size of the BCC-4V and default to a memory size of 32 Mbytes. If a node is running below 8.4.18 switch software and has a BCC-3-64 as the active processor, it is using 64M of memory. If this node switches to a BCC-4V processor (during a processor upgrade, for example) it will experience a reduction in memory from 64M to 32M.


To avoid possible loss of connections and other problems when upgrading a node to BCC-4V processors, users should upgrade their switch software 8.4.18 or greater.

Further Information

BCC-4V cards require revision H.H.M. boot code. Some BCC-4V cards may have been shipped without this version of boot code and may need to be upgraded before being placed into service.

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:

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