Cisco SR2016T-NA Reference Manual page 903

Chapter 5 Cisco CMTS Debugging Commands
debug cable l2-vpn
To display debugging messages for the Layer 2 mapping of cable modems to particular permanent virtual
connections (PVC) or to a virtual local area network (VLAN), use the debug cable l2-vpn command in
privileged EXEC mode. To stop the display of debugging messages, use the no form of this command.
Syntax Description conditional
Defaults No default behavior or values
Command Modes Privileged EXEC
Command History Release
12.2(11)BC3
12.2(15)BC2
Usage Guidelines The debug cable l2-vpn command displays status information for the mapping of cable modems to
PVCs on an ATM interface (see the
Fast Ethernet, or Gigabit Ethernet interface (see the
messages show when a cable modem is mapped to a PVC or VLAN, when the mapping is changed or
removed, and when packets are sent and received over the mapping.
The conditional option displays information for each packet that is sent and received over an ATM PVC
or VLAN mapping. Because this can produce a large volume of debug information, the conditional
option can be used only when you have also enabled debugging for a particular interface or MAC
address, using the debug cable interface and debug cable mac-address commands, respectively.
OL-1581-08
debug cable l2-vpn [conditional]
no debug cable l2-vpn [conditional]
(Optional) Displays the packets that are sent or received for a particular
cable modem or cable interface.
Note
Modification
This command was introduced for Cisco uBR7100 series and
Cisco uBR7246VXR universal broadband routers to debug the Layer 2
mapping of cable modems to a PVC on an Asynchronous Transfer Mode
(ATM) interface.
Support was added for the debugging of the Layer 2 mapping of cable
modems to a virtual local area network (VLAN) on an outbound Ethernet
interface.
The conditional option does not display any output until you have
also enabled debugging for a particular interface, using the debug
cable interface command, or for a particular MAC address, using
the debug cable mac-address command.
cable vc-map command) or to a VLAN on an Ethernet,
cable dot1q-vc-map
Cisco Broadband Cable Command Reference Guide
debug cable l2-vpn
command). The debug
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