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A-9
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.10, Part Number 78-11603-01 Rev. D0, July 2001
Appendix A Upgrade Information
Feature Mismatching
UI Commands and Enabling Feature Mismatch
When a feature is enabled, a verification is made to assure that the hardware and firmware supports this
feature. That is, during feature configuration, switch software performs a check to determine if the
feature is supported by the BXM or UXM card. For example, if you are trying to add APS on a specific
line (with addapsln) and the BXM card does not support this feature, a warning message is displayed
and the addition is not completed.
The dspcd command gives you mismatch information for the specified card.
If the feature is not available, a warning message is displayed and the feature will not be enabled.
addyred/delyred Mismatch Checking
During addyred’s mismatch checking, the following verifications are done:
• A verification to ensure that both the primary and secondary cards support the activated features.
For example, if on the primary card, the APS feature has been configured, and on the secondary
card this feature is not available, you will be blocked from using the addyred command.
• If the feature is not enabled, and the secondary card does not support similar feature sets, switch
software updates its logical database to reflect this.
• Following a delyred command execution, the logical card’s database is updated to reflect the
primary card’s capabilities.
The addyred commands (addyred, delyred, dspyred, prtyred, switchyred) will verify feature support
on both the primary and secondary cards.
Considerations for Feature Mismatch Checking
Following are some things to be aware of related to feature mismatch:
• Consider a situation where a user replaces an active BXM card running Release 9.1 firmware with
an Enhanced BXM card running Release 9.2 firmware (active card). The BXM-E (enhanced card)
has more channels (channels scheduler). However, in this situation, the additional channels on the
Enhanced BXM card cannot be used. To benefit from the additional channels provided on the
Enhanced BXM card, you must put this card in a standby mode.
• Mismatches are reported when an old BXM card is replaced with a new BXM card that has different
port group or channel levels (MLCS), even though the old BXM card and the new BXM card have
identical channel numbers.