
4-8
Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Chapter 4 Configuring the Data Interfaces
Configuring T1 and E1 Interfaces
Table 4-2 lists the supported ISDN switch types by country.
Configuring T1 and E1 Interfaces
This section describes how to configure a T1/E1 multiflex trunk interface on your AGM. It describes a
basic configuration, including how to enable the interface and to specify IP routing. Depending on your
own requirements and the protocols you plan to route, you might also need to enter other configuration
commands.
Timesaver Before you begin, disconnect all WAN cables from the AGM to keep it from trying to run the
AutoInstall process. The AGM tries to run AutoInstall whenever you bring it online if there is a WAN
connection on both ends and the AGM does not have a valid configuration file stored in NVRAM
(for instance, when you add a new interface). The AGM can take several minutes to determine that
AutoInstall is not connected to a remote TCP/IP host.
Step 7
gateway(config-if)# exit
Exit back to global configuration mode.
If your AGM has more than one BRI interface that you need
to configure, repeat Steps 5 through 7.
Step 8
gateway(config)# memory-size iomem
40
By default, the AGM allocates 25 percent of DRAM to
shared memory (used for data transmitted (or received) by
WAN interface cards). Specifying
memory-size iomem 40,
increases shared memory from 25 percent to 40 percent.
Step 9
gateway(config)# Ctrl-z
gateway#
When you finish configuring the interface, return to enable
mode.
Command Purpose (continued)
Table 4-2 ISDN Switch Types
Region
ISDN Switch
Type Description
Australia basic-ts013 Australian TS013 switches
Europe basic-1tr6 German 1TR6 ISDN switches
basic-nwnet3 Norwegian NET3 ISDN switches (phase 1)
basic-net3 NET3 ISDN switches (UK and others)
vn2 French VN2 ISDN switches
vn3 French VN3 ISDN switches
Japan ntt Japanese NTT ISDN switches
New Zealand basic-nznet3 New Zealand NET3 switches
North
America
basic-5ess AT&T basic rate switches
basic-dms100 NT DMS-100 basic rate switches
basic-nil1 National ISDN-1 switches
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