Notes and Cautions 35

Baud Rates for WAN

The following baud rates are supported in DCE mode (synchronous, internal

Ports in DCE Mode

clocking):

 

 

 

1200

112 K

 

1800

128 K

 

2400

256 K

 

3600

384 K

 

7200

448 K

 

9600

768 K

 

19 K

1344 K

 

38 K

1536 K

 

56 K

1580 K

 

64 K

2048 K

If you configure a baud rate that is different from those listed, the system will fall back to the nearest lower supported rate.

Supported Modems Table 10 lists asynchronous and Table 11 list synchronous modems supported by 3Com.

Table 10 Supported Asynchronous Modems

Modems

Hayes (Accura 33.6)

Motorola (ModemSURFR 33,600)

3Com/USR (Courier, Sportster)

Multitech (MT1932ZDX)

3Com/USR (Impact IQ)

Table 11 Supported Synchronous Modem

Modem

3Com/USR (Courier)

BGP Configuration Files Prior to software version 10.1, BGP configuration files were written to flash memory every 10 SETDs, ADDs, or Deletes. Beginning with version 10.1, BGP configurations are saved to flash memory immediately after each change, which practically eliminates the need for the SAVEbgp command.

3Com recommends that you pay special attention to bridge/router platforms running NETBuilder software version 10.1 and greater with pre-10.1 releases in the same network. Always enter the SAVEbgp command on any bridge/router running software previous to version 10.1 to make sure that all the BGP configurations are written to flash memory. Failure to do so may result in all the BGP configurations being lost after the next reboot.

Prior to NETBuilder software version 10.1, all IGP routes except OSPF External routes were imported into the BGP routing table by default. Beginning with NETBuilder software version 10.1, the “import” of IBP routes into BGP is controlled by the BGP IntPolDefault parameter.

BSC Cabling and The data communication equipment (DCE) cable for SuperStack II bridge/routers Clocking should be 07-264-000-01 (rev. 1) to work in BSC internal clocking mode.

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3Com 11.1 manual Ports in DCE Mode, Supported Asynchronous Modems, Supported Synchronous Modem