IBM Switch 9077 - Manual (Page 284)

266 IBM 9077 SP Switch Router: Get Connected to the SP Switch
# turned on.
#
# Setting the forward delay too small would result in temporary
# loops as the spannign tree algorithm converges. Setting this
# value too large results in longer partitions after the
# spanning tree reconfigures.
#
# The recommended value is 15 sec.
#forward_delay 15 seconds;
#
# maximum_age: This is the time value advertised by this bridge for
# deciding whether to discard spanning tree frames based on
# message age.
#
# If the selected max_age value is too small, then occasionally,
# the spanning tree will reconfigure unnecessarily, possibly
# causing temporary loss of connectivity in the network. If the
# selected value is too large, the network will take longer then
# necessary to adjust to a new spanning tree after a topological
# event such as restarting or crashing of a bridge or link.
#
# The recommended value is 20 sec.
#
# maximum_age 20 seconds;
#
# route_maximum_age: This parameter determines how often routes
# will be aged out of the learnt route table.
#
# Default : 300 seconds
#
# route_maximum_age 300 seconds;
#
# And last, hardwiring the forwarding table with
# specific MAC addresses to discard.
#
# Sink packets with the following destination
# addresses.
#
# discard 00:40:0b:0c:95:60 00:40:0b:0c:95:6a;
#
# Disable Spanning Tree for the group
#
# spanning_tree disabled
#} ;
#
# To create a bridge group with no ports in it, use the
# following NULL declaration:
#
# bridge_group bg0 {
# ;
# };
#
#
#debug_level 5; # traces all events of level NOTICE and above
debug_level 7 ;
# For FDDI Backbone test Chap.5.1.4.2
bridge_group bg0 {
port gf000 gf001 gf002 gf003;
};