What are some things to check if the Motorola SB5100 fails to come online in 2.0 mode with a Cisco cable modem termination system (CMTS)?
A. Check whether the SB5100 is actually in DOCSIS 2.0 mode. Motorola has a private MIB that can be set so that the modem only broadcasts docsis1.1… in the DHCP Option 60. This is the MIB information: Field Value Name cmDocsis20Capable Type OBJECT-TYPE OID 1.3.6.1.4.1.1166.1.19.3.1.25 Full path iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).gi(1166).giproducts(1).cm(19).cmConfigPrivateBase(3).cmConfigFreqObjects(1).cmDocsis20Capable(25) Module CM-CONFIG-MIB Parent cmConfigFreqObjects Prev sibling cmUpstreamPower3 Next sibling cmUpstreamChannelId2 Numerical syntax Integer (32 bit) Base syntax INTEGER Composed syntax TruthValue Status current Max access read-write Default values 1: false (name) Description This object is used to enable DOCSIS 2.0 ATDMA operation mode. Set to true (1) to enable DOCSIS 2.0 ATDMA operation mode. Set to false (2) to disable DOCSIS 2.0 ATDMA operation mode. This object is not accessible before the cable modem (CM) completes registration, except i
