Cabletron Systems Netlink FRX4000, Руководство пользователя

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9-24 FRX4000/FRX6000 4.0 User Guide, Rev 01
N3
is the number of Information LPDUs that will be received before the local node sends
an acknowledgment. This parameter is used in conjunction with
T2
to allow stations
to reduce traffic. A counter is initialized to
N3
, and will be decremented by one each
time a valid sequential Information LPDU is received. When the counter reaches
0
an
acknowledgment will be sent.
N3
will be reset whenever an Information or Supervisory acknowledgment LPDU is
sent by the local node.
Tw
is the maximum number of sequentially numbered Information LPDUs that the local
node can have outstanding. If
Tw
is reached, and acknowledgment will be sent.
N2
is the maximum number of times that an LPDU (including Information LPDUs resent
after a checkpoint operation) will be sent following expiration of
T1
.
Priority
prioritizes intra-nodal traffic; the higher the number, the higher the priority. (This pri-
ority has no effect on traffic exiting a node.)
Priorities are configured on all logical interfaces that use a physical frame relay port.
The device processor in the node uses these priorities to help determine the order in
which it will process protocols.
When configuring priorities, be careful to consider the types of
traffic being routed on other connections in the node.
Bandwidth Allocation Group
assigns the LLC2 host to one of sixteen groups whose parameters regulate bandwidth
usage. See "
Configuring Bandwidth Allocation Groups " on page 7-6.
Routing Subscriber ID
associates a Subscriber ID with the LLC2 host, and partially defines the local sub-
scriber IDs, all of which must begin with the
Routing Subscriber ID
.
Source MAC Address Mask
is used to identify the FRX4000/6000 to inbound frames from a local LAN in an Orig-
inated LLC2 session. Source address masks and host MAC addresses are placed in a
forwarding list that is checked by the software when a frame is received. If the MAC
address in an incoming frame matches a configured Source MAC Address Mask, the
frame will be passed through the node for transmission out the frame relay interface.
On-Line Temporary Changes
determines whether changes made will affect the
Database
or
System Memory
values
(
Database
values exist in the software, and are recorded as
System Memory
values
when the FRX4000/6000 is booted.) If
On-Line Temporary Changes
is set to
N
, the
Database
value will change. If
Y
, the
System Memory
value will change. Pressing
[F7]
after changing either set of values will propagate the change to the other set. (This
must be done at each screen, and affects only those parameters on that screen.)