Chapter 8 Access Service
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TABLE 262 DOT1X RE -AUTHENTICATION PERIOD COMMAND
Format Mode Function
dot1x re-
authenticate
period <1-
4294967295>
nas config This sets the re-
authentication
interval
Result: This sets the re-authentication interval.
Important! To judge whether access subscriber maintains
connection all time, NAS can periodically request re-
authentication of this subscriber. Re-authentication needs
to initiate a complete authentication process for each on-line
subscriber. If number of subscribers is large, there will be
a lot of authentication packets, which brings a heavy burden
to the switch.
7. To enable/disable abnormal off-line detection mechanism
of the port, use command aaa-control port <portlist>
keepalive {enable|disable} in nas config mode. This is
shown in
Table 263.
TABLE 263 AAA CONTROL PORT KEEPALIVE COMMAND
Format Mode Function
aaa-control port
<portlist>
keepalive
{enable|disable}
nas config This enable/disable
abnormal off-line
detection
mechanism of the
port
Result: This enable/disable abnormal off-line detection
mechanism of the port.
8. To set the abnormal off-line detection period of the port,
use command aaa-control port <portlist> keepalive
period <1-3600> in nas config mode. This is shown in
Table 264.
TABLE 264 AAA CONTROL PORT KEEPALIVE PERIOD
Format Mode Function
aaa-control port
<portlist>
keepalive period
<1-3600>
nas config This sets the
abnormal off-line
detection period of
the port
Result: This sets the abnormal off-line detection period of
the port.
Note: The following are the main features of abnormal off-
line detection mechanism.
f Besides re-authentication mechanism, NAS module also
introduces abnormal off-line detection mechanism to
judge whether subscriber still keeps the connection.
Abnormal off-line detection mechanism only requires a