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Configuring ATM Over MPLS Gateway Solution on CBX 3500
Configuring a Layer 2 Tunnel Over MPLS Core Network
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/059-53
Continue with the next section, “Layer 2 Tunnel ATM Attributes.”
Table 9-21. Add Layer2 Tunnel: General Tab Fields
Field Description
Admin Status Select Up or Down to define the admin status of this Layer 2 
tunnel.
PSN Tunnel Name Select a PSN tunnel from the pull-down list. The PSN tunnel 
you select is the one to which this Layer 2 tunnel will be 
mapped.
ATM Protocol Select VNN, PNNI, or None as the protocol for this tunnel.
Service Type The service type defaults to ATM and cannot be modified.
Tunnel Direction Not available.
Label Forward  Enter a value in the range displayed. The range is determined 
based on the configuration of MPLS switch attributes, from 
RSVP Lite and Static label. This value defines the inner label 
of the Layer 2 tunnel from the source node to the destination 
node.
Label Backward (0-max) Enter a value in the range displayed. The range is determined 
based on the configuration of MPLS switch attributes, from 
RSVP Lite and Static label. This value defines the inner label 
of the Layer 2 tunnel from the destination node to the source 
node.
Tunnel CDV (0-max) Enter a value for the cell delay variation for this tunnel.
Bulk Stats Check the box for bulk statistics to be collected for this Layer 
2 tunnel using the NavisXtend Statistics Server. Otherwise, 
leave the box unchecked to disable statistics collection.
Note: Bulk statistics must also be enabled at the switch level.
Adjacency Enable Check the box for adjacencies to be enabled for this Layer 2 
tunnel. Leave the box unchecked to disable adjacencies.
Layer2 VPN Name Select public (default) or a Layer 2 VPN on the network from 
the pull-down list. For more information on Layer 2 VPNs, 
see Chapter 13, “Configuring Layer 2 VPNs.”
Customer Name Not supported in this release.