Cabletron Systems SmartSwitch 6000 User Manual page 107

T1 Retransmit Period
T2 Wait Ack Period
T3 Link Alive Period
Logical DCE
Database Display/On-Line System Memory Changes
Lowest/Highest Incoming/Two-Way/Outgoing Channel
Flow Control Negotiation
Configuring Frame Relay
bility of an eventual correct transfer between DTE and DCE, but a smaller value
permits faster detection of a permanent error condition.
is the length of time before transmission of an I-frame if the previous transmission is
not acknowledged. If the period expires, the software will reset the timer and transmit
a supervisory frame demanding immediate acknowledgment. Also, the
(see that entry) counter will be incremented. The default value of
Retransmissions
allows avoidance of unnecessary retransmission of frames that have merely
3000 ms
been delayed.
is the length of time the node will delay acknowledgment of a received I-frame if there
is no outgoing I-frame to be sent. If during this period the node receives an I-frame for
transmission, the acknowledgment will be sent with it, and the delay timer will be
reset.
is the length of time after which the node will poll its counterpart if there is no data
transfer.
defines the port as (if
Y
must be the opposite of this port. Logical DCE/DTE is independent of physical. A
node connecting a subscriber device into a network should normally be configured as
logical DCE.
determines which set of values will be changed, as described under "Database and
System Memory Values" on page 5-4.
are the ranges of logical channel numbers (LCNs) that subscribers can use for calls
through this port. The valid values for each parameter are determined as follows:
Channel
Lowest Incoming
Highest Incoming
Lowest 2-Way
Highest 2-Way
Lowest Outgoing
Highest Outgoing
Changing any parameter to a value that violates this order automatically changes any
other values now in violation, specifying the first value(s) within the valid range. If
any pair is not used, its constraints apply to the next higher or lower pair (whichever
is appropriate) in the above list.
is an optional X.25 facility that permits negotiation of the flow control parameters
(packet and window sizes for either direction of data transmission) on a per call basis.
If is selected, the default packet and window sizes will be used. If
N
packet and/or window size included in a call packet will be used. (If either is not
included, the default for that parameter will be used.)
) logical DCE or (if ) DTE. The other end of the connection
N
Valid Values
through
1 Highest Incoming
Greater than/equal to
Greater than
Highest Incoming
Greater than/equal to
Greater than
Highest 2-Way
through
Lowest Outgoing
Lowest Incoming
Lowest 2-Way
4095
is selected, a
Y
Maximum
6-25