Specifications

FDB Scan Entries Remapped
ExtremeWare Error Message Decoder 705
FDB Scan Entries Remapped
FDB Scan: entry 7489/3 marked 'remapped'
FDB Scan: (8) sw/hw dpath mismatch M-BRD bucket 7489 entry 3
Software Version
ExtremeWare 6.2 and later
Hardware Version
All “i” series
Explanation
Copies of software FDB and hardware FDB are compared when fdb-scan is enabled. If there is a
mismatch between the two, the entries are marked as "remapped". The message shows the index of the
bucket and the entry for the fdb entry with the discrepancy.
You can obtain this information using the command
show fdb remap.
If the switch detects more than eight questionable entries, it executes the configured failure action and
stops remapping on the switch fabric. You can configure the action to be carried out if the FDB scan
fails. Configure to:
• Log—Logs message on the syslog. Failures are logged in syslog.
• Sys-health-check—Executes the configured system health check action if failures are detected
continuously.
When a bad fdb entry is detected, the switch takes one of the following actions:
• Remaps around the entry location—If the entry is not in use.
• Removes the questionable entry, allows the table to be rebuilt, and remaps around the entry
location—If the entry is in use, but is safely removable (most of the MAC and IP-DA entries).
• Sends a warning message to the log—If the entry is in use and is not safely removable.
Action
Informational only. No action needed.