Show, Clear, Debug Commands
Page 892 7210 SAS M Services Guide
fdb
Syntax fdb [sap sap-id [expiry]] | [mac ieee-address [expiry]] | [detail] [expiry]
Context show>service>id
show>service>fdb-mac
Description This command displays FDB entries for a given MAC address.
Parameters sap sap-id — Specifies the physical port identifier portion of the SAP. See Common CLI Command
Descriptions on page 939 for command syntax.
detail — Displays detailed information.
expiry — Displays time until MAC is aged out.
Show FDB Information — The following table describes service FDB output fields.
Label Description
ServID
Displays the service ID.
MAC
Displays the associated MAC address.
Mac Move
Displays the administrative state of the MAC movement feature
associated with this service.
Primary Factor
Displays a factor for the primary ports defining how many
MAC-relearn periods should be used to measure the MAC-
relearn rate.
Secondary Factor
Displays a factor for the secondary ports defining how many
MAC-relearn periods should be used to measure the MAC-
relearn rate.
Mac Move Rate
Displays the maximum rate at which MAC's can be re-learned
in this service, before the SAP where the moving MAC was last
seen is automatically disabled in order to protect the system
against undetected loops or duplicate MAs.
The rate is computed as the maximum number of re-learns
allowed in a 5 second interval: for example, the default rate of 2
re-learns per second corresponds to 10 re-learns in a 5 second
period.
Mac Move Timeout
Displays the time in seconds to wait before a SAP that has been
disabled after exceeding the maximum re-learn rate is re-
enabled.
A value of zero indicates that the SAP will not be automatically
re-enabled after being disabled. If after the SAP is re-enabled it
is disabled again, the effective retry timeout is doubled in order
to avoid thrashing.
Mac Move Retries
Displays the number of times retries are performed for reen-
abling the SAP/SDP.
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