Cabletron Systems SmartSwitch 6000 User Manual page 261

Port Priority
Path Cost
Priority
LAN Card
LAN ID
RLP/Port
Configuring Bridging
will become the first octet of the
lower the number, the higher the priority that the interface will be given among other
interfaces in the spanning tree.
is the "cost" of transmitting a frame through the port onto the LAN. This cost, deter-
mined by the speed of the LAN/port (the higher the speed, the lower the cost), will be
added together with all other path costs on a specific link between source and desti-
nation devices. The total will then be compared to other total path costs to determine
the least "expensive" end-to-end path.
prioritizes this interface for intra-nodal traffic; the higher the number, the higher the
priority. (This priority has no effect on traffic exiting a node.)
A priority is also configured in Node Defaults, as well as for each logical port, SNA
PU, LLC2 host, IP interface, IPX interface, SVC subscriber, and PVC connection. The
device processor in the node uses these priorities to help determine the order in which
it will process protocols.
This priority has no connection to
When configuring priorities, be careful to consider the types of
traffic being routed on other connections in the node.
identifies the LAN card, as defined in PROTOCOL.INI (
Menu). (The single LAN card in an FRM is always card
an FRX4000 is seen as
identifies the ring number used by a frame relay-compliant source-route bridge at the
other end of this PVC. The value is normally assigned by a system administrator.
LAN IDs can also be configured in LLC2/Bridge Node Defaults
(described in Chapter 8). Each LAN ID must be unique within
the network on which this node will operate.
identifies the LP and physical port containing the interface.
Make sure the physical frame relay port is not reserved for
backup DLCIs (as determined by the
parameter in the port record—see Chapter 6).
field in Spanning Tree Protocol messages. The
Port ID
Bridge Priority
.)
0
or .
Port Priority
from the Main
[A], [C], [B]
, and the LAN interface in
0
For Backup Use Only
13-15