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BelAir100SN User Guide
Using Layer 2 Tunnels
May 31, 2010
Confidential
Document Number BDTM11001-A01 Released
The
auto
parameter tells the BelAir unit that it should obtain L2VPN
parameters (IP address and label) from the NetOp NSM server. This is a
preferred setting for large deployments.
The
ip
and
backup-ip
parameters specify IP addresses of the head end tunnel
endpoint. It is usually the IP address of a SmartEdge device terminating L2VPN
tunnels. Use these parameters to manually configure a test environment or
small deployments.
The
label
and
backup-label
parameters specify the MPLS labels of the head end
tunnel endpoint virtual circuit. Use these parameters to manually configure a
test environment or small deployments.
The
switch
parameter controls whether the use of a backup router is revertive
or not. Once the BelAir unit starts to use a tunnel to a backup router:
• If
switch
is set to
non-revertive
, then the BelAir unit uses the tunnel to the
backup router until it fails. Only then does the BelAir unit switches back to
the tunnel using the main router. This is the default setting.
• 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
l2vpn autoconfig renew
command to trigger getting a new set of
configuration parameters from the NetOp NSM configuration server.
Use the
set l2vpn autoconfig
command to define parameters to communicate
to the NetOp NSM configuration server.
The
ip
parameter defines the IP address of NetOp NSM server.
The
username
parameter and the
password
parameter are used together to
authenticate the BelAir node with NetOp NSM 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.
Mapping User Traffic
/protocol/te-<eng>/map vlan {untagged|<VLAN ID>} to <index>
/protocol/te-<eng>/unmap vlan {all|untagged|<VLAN ID>}
The
map vlan
command instructs the tunnel engine to forward traffic to the
specified tunnel. You can specify either traffic associated with a specific VLAN
or traffic that is not tagged for any VLAN. All packets that meet this criteria