BelAir20E User Guide
Using Layer 2 Tunnels
April 2, 2012
Confidential
Document Number BDTM02201-A01 Standard
• If
switch
is set to
revertive
, then the BelAir unit uses the tunnel to the
backup router only while the main tunnel is unavailable. The BelAir unit
switches back to the tunnel using the main router as soon as it becomes
available again.
Use the
set l2vpn autoconfig
command to define parameters to communicate
to the NetOp NSM configuration server:
• To specify the NetOp NSM server, supply either the
ip
parameter with an IP
address or the
hostname
parameter with a valid DNS host name.
• The
username
parameter and the
password
parameter are used together to
authenticate the BelAir node with NetOp NSM server.
• The optional
wait-time
parameter lets you specify in minutes how long to
wait for a response from NetOp NSM configuration server before declaring
a failure condition. The default setting is 15 minutes, with a valid range of 1
to 60 minutes.
• The optional
retry-min
and
retry-max
parameters let you specify in seconds
a minimum and maximum value for the retry timer. The value of the retry
timer is chosen randomly within the boundaries defined by the
retry-min
and
retry-max
parameters. The timer is triggered by any failure while trying
to communicate with the NetOp NSM configuration server (for example,
the server not responding in time or the server not recognizing the
username
parameter and the
password
parameters). When timer expires,
the BelAir unit attempts to establish communications with the NetOp NSM
configuration server again. The default settings are 60 seconds for
retry-min
and 180 seconds for
retry-max
, with a valid range of 10 to 1800 seconds.
To disable
l2vpn autoconfig
, enter an IP address of 0.0.0.0.
Use the
l2vpn autoconfig renew
command to trigger getting a new set of
configuration parameters from the NetOp NSM configuration server.
Use the
set l2vpn advanced inactivity-timer
command to specify how long to
wait until declaring the L2VPN tunnel down. The
<seconds>
parameter ranges
from 10 to 1000 seconds. The default value is 60 seconds.