6-2
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Chapter
LMI Interface

In-band Access

To create an in-band access to the MGX 82 20 sh el f
1. Use an out-of-band method to configure the MGX 8220 IP address to 37. Enter the cnfifip
command.
2. Configure the IP address on th e c on n ect ed r oute r or ATM switch
3. The MGX 8220 shelf uses a VPI o f 3 an d V C I o f 8 f or in - band ac cess. The connected router or
ATM switch must be a ble to supp ort t he se v al ues . Co nf i gure t he ro ut er or sw itch fo r th ese VPI /VC I
values.
4. From the ATM network, telnet into the MGX 8220 address. The login prompt should appear.

Out-of-Band Access

The MGX 8220 options for out-of-band access are
•Alphanumeric terminal using RS-232 on the ASC maintenance port.
•Computer using SLIP over RS-232 on the ASC control port.
•Ethernet workstation over Ethernet on the ASC Ethernet port.
See Chapter 3, “Managing the Cisco MGX 8220 Shelf.”
LMI Interface
In stand-alone applications, the Annex-G ATM LMI must be disabled in order to suppress ATM LMI
related connection alarms. This is achieved by looping back Annex-G LMI messages within the
MGX 8220 shelf. Enter the addlmiloop command.
The loopback can be confirmed with the dsplmiloop command and the respon se of
“AtmLmiLoopBack: Loop.”
Configuring the BNM
In stand-alone applications, th e B N M car d in te r face f orm a t m ust be configured to UNI before
connections can be p rov is i oned. You need to enter the cnfbnmif comm and to specify the “interface
format” parameter as 2 (for UNI).
The BNM interface format is pre served in the BRAM (battery-b acke d RA M ) o f th e AS C ca rd(s) and
need not be reconfigured. The clrallcnf command will not modify the BNM interface f o rm at.
Display the current BNM inter fa ce fo r mat by entering the following comman d :
shelf.1.3.ASC.a > dspbnmif
The current BNM interface format (in this case, STI) is displayed.
bnmLineInterfaceFormat: bnmSti