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Notes and Cautions 35
Baud Rates for WAN
Ports in DCE Mode
The following baud rates are supported in DCE mode (synchronous, internal
clocking):
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.
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
Clocking
The data communication equipment (DCE) cable for SuperStack II bridge/routers
should be 07-264-000-01 (rev. 1) to work in BSC internal clocking mode.
■ 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
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)