Specifications

Application View Cisco DLSW Application
Device Management Page 144 Cisco Router
Circuit Creates
The total number of entries ever added to Dlsw
Circuit Table, or reactivated upon exiting
disconnected state.
Dlsw Circuit Table
This table is the circuit representation in the
DLSw entity. Virtual data links are used to
represent any internal end stations. There is a
conceptual row associated with each data link.
Thus, for circuits without an intervening
transport connection, there are two conceptual
rows for each circuit.
The table consists of the circuits being
established, and as an implementation option,
circuits that have been disconnected. For circuits
carried over transport connections, an entry is
created after the CUR_cs was sent or received. For
circuits between two locally attached devices, or
internal virtual MAC addresses, an entry is
created when the equivalent of CUR_cs
sent/received status is reached.
End station 1 (S1) and End station 2 (S2) are used
to represent the two end stations of the circuit. S1
is always an end station which is locally attached.
S2 may be locally attached or remote. If it is
locally attached, the circuit will be represented by
two rows indexed by (A, B) and (B, A) where A & B
are the relevant MACs/SAPs. This table contains
the following information.
Index
The index to the conceptual row of the table.
S1 Mac
The MAC Address of End Station 1 (S1) used for
this circuit.
S1 Sap
The SAP at End Station 1 (S1) used for this
circuit.
S1 If Index
The IfEntry index of the local interface through
which S1 can be reached.
S1 Dlc Type
The DLC protocol in use between the DLSw node
and S1. Possible values are other, na, llc, sdlc,
and qllc.
S1 Route Info
If source-route bridging is in use between the
DLSw node and S1, this is the routing
information field describing the path between the
two devices. Otherwise, the value will be an octet
string of zero length.
S1 Circuit Id
The Circuit ID assigned by this DLSw node to this
circuit. The first four octets are the DLC port Id,