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Note:
When this command is used without being configured with the parameter shared-key key-string for
negotiation, the default key configured using the shared-key command will be used.
2.4.3 Standby/Primary Server Switchover Interval
If you have specified the primary and standby servers in a TACACS+ server group,
the router regularly tests whether the primary server can work properly in the case
that the current server used to provide AAA services is a standby server. Once it finds
that the specified primary server can work normally, it switches from the current
standby server to the primary server. You can configure the interval for switching.
Perform the following configuration in TACACS+ view.
Table 2-4 Configure a standby/primary server switchover interval
Operation Command
Configure a standby/primary server switchover interval
timer quiet minute
s
Restore the default standby/primary server switchover
interval
undo timer quiet
The standby/primary server switchover interval defaults to five minutes.
2.4.4 Set a Shared Key for the AAA Negotiation Between Router and
TACACS+ Server
Setting a shared key can ensure the security of the communications between router
and TACACS+ server. By default, the system does not set a key. Therefore, you
should use this command to set a shared key in the case that a TACACS+ server is
used as the AAA server.
Perform the following configuration in system view.
Table 2-5 Set a shared key for the AAA negotiation between router and TACACS+ server
Operation Command
Configure a shared key for the AAA negotiation with any
TACACS+ servers in a specified TACACS+ server group
shared-key
key-string
Delete the shared key for the AAA negotiation with the
TACACS+ servers in a specified TACACS+ server group
undo shared-key
By default, no key is set.
3Com Router Configuration Guide Addendum for V1.20
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