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Note In addition to the power budget, additional restrictions apply when other ciscoBus or Multibus
interface cards are installed in the system. For compatibility limitations, refer to the section
"ciscoBus Port Limitations" on page 12, and to the following section.
Compatibility with Other Cards
The CSC-MEC card will interoperate with any ciscoBus interface card that is compatible with the
current ciscoBus controller (within the limits specified in the section "ciscoBus Port Limitations,"
on page 12), and with any Multibus interface card that is compatible with the current system
software. However, as new features are added with system software releases, the microcode
(firmware) on interface cards might need to be upgraded in order to take advantage of the new
features.
For example, the CSC-C2MEC requires a CSC-CCTL2 ciscoBus controller and System Software
Release 9.1 or later. (See the section "System Requirements" on page 7.) If you are upgrading your
system software and ciscoBus controller to a CSC-CCTL2 along with this card installation, you
must upgrade the microcode on all existing ciscoBus interfaces to Version 10.0 or later and, to ensure
that all the features of a software release are available, you must upgrade the microcode on existing
Multibus interface and controller cards to the minimum versions required for System Software
Release 9.1 compatibility.
The Microcode Release Note publication (Document Number 78-1069-nn) provides the latest
information on both the recommended and minimum required microcode versions for using all cards
with System Software Releases 8.2 through 9.1. If the latest release implements features that you are
not using in your system and you already have the minimum required version installed, then there is
no requirement to update the microcode. However, new microcode versions occasionally fix bugs
and provide performance enhancements in addition to implementing new features. You will obtain
maximum performance and reliability by upgrading to the recommended version. For current
microcode requirements and recommendations, and for a microcode revision history for each card,
refer to the latest Microcode Release Note publication (Document Number 78-1069-nn).
Note To order upgrades or to obtain additional upgrade or compatibility information, contact a
customer service representative at the number on the front page of this document.
Use the show controller [type] command with appropriate variables [cBus, token, serial, or
ethernet] to display the current microcode on any interface card, and use the show environment
command (available with System Software Release 9.0 and later) to display the current CSC-ENVM
microcode. An example of the show controller cbus command is shown on page 8. The following
partial sample display of the show controller mci command shows a CSC-MCI with Microcode
Version 1.9 installed.
router# show cont mci
MCI 1, controller type 1.1, microcode version 1.10
(display text omitted from example)
The following partial, sample display of the show environment command shows a CSC-ENVM
with Microcode Version 2.2 installed.
router# show env
Environmental controller firmware version 2.2
(display text omitted from example)
Installing the CSC-MEC and CSC-C2MEC Multiport Ethernet Controller Cards 15
Installation Prerequisites
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