User guide

MPLS Module Installation and User Guide 7-9
Configuring MPLS Layer-2 VPNs
MPLS header of Layer-2 frames forwarded onto the tunnel LSP by this switch, and
must be meaningful to the peer TLS node.
All traffic received from the tunnel LSP that contains the
<ingress_label>
is
forwarded to the local VLAN identified by the
<local_vlan_name>
parameter.
When ingress traffic is forwarded to the local VLAN, the VLAN ID is set to the VLAN
ID of the local VLAN, without regard to the VLAN ID in the MAC header of the frame
received from the tunnel LSP. Thus, there is no requirement that all sites of an extended
VLAN be configured to use the same VLAN ID. This can simplify network
management in some situations.
The
tls-labels
parameters are specified using hexadecimal notation. The value of the
<ingress_label>
parameter must be unique within the switch (the same
<ingress_label>
value cannot be used for two different tunnels). The valid range of
the ingress label parameter is [8C000..8FFFF].
The valid range of the
<egress_label>
parameter is [00010..FFFFF]. If the peer LSR is
also an Extreme switch, then the
<egress_label>
must be in the range [8C000..8FFFF].
Because LSPs are unidirectional in nature, coordinated configuration is required at both
tunnel endpoint switches. The
<egress_label>
at one tunnel endpoint switch must
match the
<ingress_label>
at the other tunnel endpoint switch, and vice versa.
Deleting a TLS Tunnel
To delete one or all TLS tunnels, use the following command:
config mpls delete tls-tunnel [<tunnel_name> | group {<groupid>} | all]
This command deletes the TLS tunnel with the specified tunnel name. Specify the
<groupid>
if you want to delete all TLS tunnels belonging to a specific group. Use the
all
keyword to delete all TLS tunnels.
Configuring the VPN Flood Mode
To configure the VPN flood mode, use the following command:
config mpls tls-tunnel vlan [<name>] mode [hub | mesh]
This command configures the broadcast and unknown packet-forwarding behavior for
the specified TLS VLAN. The TLS VPN flood mode options are
hub
and
mesh
. When
two or more TLS tunnels are configured for the same TLS VLAN, each configured TLS