ZyXEL Communications ZyXEL Dimension ES-2048 - Manual (Page 178)

Chapter 21 IP Source Guard
ES-2048 User’s Guide
178
The following table describes the labels in this screen.
Table 59 DHCP Snooping
LABEL DESCRIPTION
Database Status
This section displays the current settings for the DHCP snooping
database. You can configure them in the DHCP Snooping Configure
screen. See Section 21.5 on page 180 .
Agent URL This field displays the location of the DHCP snooping database.
Write delay timer This field displays how long (in seconds) the Switch tries to complete a
specific update in the DHCP snooping database before it gives up.
Abort timer This field displays how long (in seconds) the Switch waits to update the
DHCP snooping database after the current bindings change.
This section displays information about the current update and the next
update of the DHCP snooping database.
Agent running This field displays the status of the current update or access of the DHCP
snooping database.
none: The Switch is not accessing the DHCP snooping database.
read: The Switch is loading dynamic bindings from the DHCP snooping
database.
write: The Switch is updating the DHCP snooping database.
Delay timer expiry This field displays how much longer (in seconds) the Switch tries to
complete the current update before it gives up. It displays Not Running if
the Switch is not updating the DHCP snooping database right now.
Abort timer expiry This field displays when (in seconds) the Switch is going to update the
DHCP snooping database again. It displays Not Running if the current
bindings have not changed since the last update.
This section displays information about the last time the Switch updated
the DHCP snooping database.
Last succeeded time This field displays the last time the Switch updated the DHCP snooping
database successfully.
Last failed time This field displays the last time the Switch updated the DHCP snooping
database unsuccessfully.
Last failed reason This field displays the reason the Switch updated the DHCP snooping
database unsuccessfully.
This section displays historical information about the number of times the
Switch successfully or unsuccessfully read or updated the DHCP snooping
database.
Total attempts This field displays the number of times the Switch has tried to access the
DHCP snooping database for any reason.
Startup failures This field displays the number of times the Switch could not create or read
the DHCP snooping database when the Switch started up or a new URL is
configured for the DHCP snooping database.
Successful transfers This field displays the number of times the Switch read bindings from or
updated the bindings in the DHCP snooping database successfully.
Failed transfers This field displays the number of times the Switch was unable to read
bindings from or update the bindings in the DHCP snooping database.
Successful reads This field displays the number of times the Switch read bindings from the
DHCP snooping database successfully.
Failed reads This field displays the number of times the Switch was unable to read
bindings from the DHCP snooping database.