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The following steps demonstrate configuring a T1 network interface with DS0s 1 through 10
for data.
1. At the (config)# prompt, enter interface t1 1/1 to activate the interface configuration mode
for the T1 network interface.
2. Enter clock source line
to configure the router to recover clocking from the T1 network
connection.
3. If two routers are configured on a private T1 (PPP mode), set one router to clock source line
and the other to clock source internal. For Frame Relay, set both ends to clock source
line.
The following steps demonstrate configuring a T1 network interface with timeslots 1 through 10
reserved for data.
1. Enter tdm-group 1
timeslots 1-10 to create a TDM group for DS0s 1 through 10 (the data
DS0s) on the T1 network connection (t1 1/1).
2. Enter no shutdown to activate the T1 interface.
3. Enter exit to return to the Global Configuration mode.
1. Enter interface t1 1/2 to activate the interface configuration mode for the DSX-1 interface.
2. Enter signaling mode robbed-bit to verify the DSX-1 interface is configured for voice
(robbed-bit) signaling.
3. Enter no shutdown to activate the DSX-1 interface.
4. Enter exit to return to the Global Configuration mode.
1. At the (config)# prompt, enter ip route 0.0.0.0 0.0.0.0 192.168.72.2
to add 192.168.72.2 to
the route table as the default gateway.
2. If configuring the NetVanta for Frame Relay applications, proceed to Configure the Frame
Relay Virtual Interface on page 4. If using the router in a PPP configuration, skip to Configure
the Virtual PPP Interface on page 4.
Configure the T1 Network Interface
Create the T1 Interface TDM Group
The NetVanta routers automatically map DS0s 1 through 24 from the network connection
of a T1/FT1 + DSX-1 NIM to the DSX-1 port. Creating a TDM group removes the specified
DS0s from the DSX-1 map. All remaining DS0s not included in the TDM group will be
passed from the network port (t1 1/1) to the DSX-1 port (t1 1/2).
Configure the DSX-1 Interface (Optional)
The default t1 1/2 signaling is robbed bit and does not need to be set. To use PRI, set
signaling = None.
Configure the Default Gateway
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