ADTRAN AOS Version R10.1.0 Command Reference Manual page 68

Command Reference Guide
Functional Notes
Cross connections provide the mechanism for connecting a configured virtual (Layer 2) endpoint with a
physical (Layer 1) interface. Supported Layer 2 protocols include Frame Relay and PPP. This command
can be used both to connect the Frame Relay interface with a TDM group on a T1 circuit and to connect a
PPP interface to a Frame Relay interface for use with PPPoFR encapsulation. When using the
cross-connect command to connect a Frame Relay endpoint to a T1 interface, the command is issued
from the Frame Relay Interface Configuration mode or from the Global Configuration mode. When using
the cross-connect command to link a PPP interface to a Frame Relay interface in PPPoFR, the command
is issued from the PPP Interface Configuration mode.
Usage Examples
The following example creates a Frame Relay endpoint and connects it to the T1 1/1 physical interface:
1. Create the Frame Relay virtual endpoint and set the signaling method:
(config)#interface frame-relay 1
(config-fr 1)#frame-relay lmi-type cisco
2. Create the subinterface and configure the PVC parameters (including DLCI and IP address):
(config-fr 1)#interface fr 1.1
(config-fr 1.1)#frame-relay interface-dlci 17
(config-fr 1.1)#ip address 168.125.33.252 255.255.255.252
3. Create the TDM group of 12 DS0s (64K) on the T1 physical interface:
(THIS STEP IS ONLY VALID FOR T1 INTERFACES.)
(config)#interface t1 1/1
(config-t1 1/1)#tdm-group 1 timeslots 1-12 speed 64
(config-t1 1/1)#exit
4. Connect the Frame Relay subinterface with port T1 1/1:
(config)#cross-connect 1 t1 1/1 1 fr 1
The following example creates a PPP interface and connects it to the Frame Relay interface for use with
PPPoFR. The Frame Relay interface in this example is based on the interface configured in the previous
example.
1. Create the PPP interface and enter its configuration mode:
(config)#interface ppp 1
(config-ppp 1)#
2. Configure the PPP interface (including IP address and PPP authentication information):
(config-ppp 1)#ip address 65.162.109.202 255.255.255.252
(config-ppp 1)#ppp authentication chap
(config-ppp 1)#ppp chap hostname USERNAME
(config-ppp 1)#ppp chap password PASSWORD
(config-ppp 1)#no shutdown
3. Connect the PPP interface with the Frame Relay interface:
(config-ppp 1)#cross-connect 2 fr 1.1 ppp 1
60000CRG0-35E Copyright © 2012 ADTRAN, Inc.
Common Commands
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