ACCULINK 316x DSU/CSUE-10 December 1996 3160-A2-GB22-10Near End Group – The DS1 Total TableObjects (dsx1TotalEntry)The following DS1 total table objects are provided forthe Network T1 interface only. Objects in the table thatare not listed are not supported and will return an errorstatus if access is attempted.• dsx1TotalIndex – The index that identifies the T1interface.• dsx1TotalESs – The 24-hour total Errored Seconds.• dsx1Total SESs – The 24-hour total SeverelyErrored Seconds.• dsx1TotalUASs – The 24-hour total UnavailableSeconds.• dsx1TotalCSSs – The 24-hour total Controlled SlipSeconds.• dsx1TotalBESs – The 24-hour total Bursty ErroredSeconds.Far End Group, DS1/E1 MIBThe DS1 Far End Group consists of the following threetables:• DS1 Far End Current• DS1 Far End Interval• DS1 Far End TotalThese tables are not supported for either the network orDTE Drop/Insert T1 interfaces.The DS1 Fractional Group, DS1/E1 MIBThe DS1 Fractional Group consists of the DS1fractional table. This table (dsx1FracTable) is fullysupported by the T1 DSU/CSU and allows channel (timeslots) to be mapped between the T1 interface and dataports. If an invalid channel map (e.g. two interfacesmapped to a single time slot, one interface mapped to twoT1s, etc.) is received an error will be returned to theSNMP manager. The T1 DSU/CSU validates all channelconfigurations before applying them.Operational Note: The fractional T1 group only allowsspecification of an entire interface to a particular time sloton another interface (i.e., a time slot on one interfacecannot be mapped to a time slot on another interface).This prevents complete mapping of time slots on the DTEDrop/Insert T1 interface to time slots on the network T1interface. For mapping time slots between the networkand DTE T1 interfaces the following convention will beused. Time slots on the T1 interface that are mapped toanother T1 interface (i.e., not a data port) will beconnected in ascending order. For example, if thefractional table for the network T1 interface maps timeslots 1, 3 and 5 to the DTE T1 interface and the DTE T1interface maps time slots 10, 11 and 15 to the network thefollowing time slots will be connected: N1 – D10,N3 – D11, and N5 to D15.RS-232-like MIB (RFC 1317)The “rs232” object defined by RFC 1317 is supportedfor all of the synchronous DCE data ports, the MODEMport, and the COM port. The RS-232-like MIB consists ofone object and five tables, as follows:• Number of RS-232-like ports• The General Port Table• The Asynchronous Port Table• The Synchronous Port Table• The Input Signal Table• The Output Signal TableThe Asynchronous Port Table is not supported by theDSU/CSU for the synchronous DCE data ports. The InputSignal and Output Signal Tables are not supported for theMODEM and COM ports. The following sections provideclarification for objects contained in the RS-232-like MIBwhen it is not clear how the object definition in MIB isrelated to the DSU/CSU.
