Service Manual

Fabric OS 7.4.0a Release Notes v2.0 Page 16 of 53
Firmware Integrity Check
FOS v7.4 introduces a firmwareCheck CLI command to check the integrity of firmware packages already
installed on the switch. If any of the files or packages as part of firmware has been changed, the firmware
integrity check will fail and notify users which package has failed the check.
Challenge-Response Authentication
FOS v7.4 introduces support for SSH servers configured with “keyboard-interactive” as defined in IETF RFC
4256 as authentication method to be used with SCP or SFTP for firmware download, support save, and config
upload/download commands. With this SSH server configuration, FOS v7.4 only supports account passwords
as a form of challenge-response authentication.
RAS Enhancements
FOS v7.4 supports the following RAS enhancements:
WWN Card Replacement Enhancements
FOS v7.4 enhances the procedure for field replacement of WWN cards in chassis based systems. WWN cards
are chassis FRUs that contain chassis WWNs and other information. Each chassis has two WWN cards for
redundancy. FOS v7.4 enhances WWN card handling so that certain error or data corruptions associated with
WWN cards can be recovered in the field.After users replace a single defective WWN card with a new one,
some data can be restored from the current/non-defective WWN card to the newly replaced WWN card. In
addition, the system periodically checks the integrity of the WWN cards and logs RASLOG error messages if
problems are detected.
Show RASLOG Messages within a Timeframe
FOS v7.4 adds options to errdump and errshow CLI command so that only RASLOG messages within the
specified beginning and end time will be shown, instead of all RASLOG messages.
Audit Log Enhancements
FOS v7.4 enables audit log by default for all classes of messages. FOS v7.4 increases the maximum number of
audit log messages stored on a switch to 1024 from 256.
Clihistory Identify Command Virtual Fabric FID
FOS v7.4 enhances cliHistory so that FID contexts will be shown along with the command line. With this
enhancement, clihistory in a support save file includes the FID information for support and debug usage.
Zoning Enhancements
FOS v7.4 adds the following enhancements to standard zoning to simplify zoning configuration:
List Zones with Specific Alias
FOS v7.4 adds support to zoneshow command to display only the zone configurations that match a given alias
instead of the entire zone database. Administrators can use this enhancement to quickly locate certain zone
configurations that contain a specific alias or alias prefix.
Sort zoneShow Command Output by WWN
FOS v7.4 enhances the zoneShow --sort command output in sorted order for both (D,I) and WWN members.
Indicate offline members in zoneShow output
FOS v7.4 provides a new option --validate to the zoneshow command to indicate members in the configuration
but not online in the fabric. Administrators can use this enhancement to quickly discover the online and offline
members in a zone configuration.
Traffic Isolation (TI) Zoning Enforcement enhancement
FOS v7.4 enhances TI zoning rule enforcement so that devices connected to the same local switch are also
enforced by the TI zoning rule.