3Com OfficeConnect 3C100XF Cli User's Manual - page 66
6-4
C
HAPTER
6: B
RIDGING
C
OMMANDS
set bridge forward_delay
The Forward Delay is the time (in seconds) to wait while learning forwarding
information before starting to bridge packets. The range is between four and 30
seconds. Use the set bridge forward_delay
Forwarding Delay.
Spanning Tree
Spanning Tree refers to the Spanning Tree Protocol which is used to eliminate
network loops between bridges.
disable bridge
spanning_tree
Use the
disable bridge spanning_tree
command to disable Spanning Tree.
enable bridge
spanning_tree
Use the
enable bridge spanning_tree
command to enable Spanning Tree.
Spanning Tree Priority
The Spanning Tree Priority is the priority assigned to a bridge that is running the
Spanning Tree Protocol. It is used for prioritizing the bridges when Spanning Tree is
enabled. The range of numbers you can assign is from zero to 65535.
set bridge
spanning_tree_priority
Use the
set bridge spanning_tree_priority
change the Spanning Tree Priority.
MAC-Encapsulated
Routing
Because routers base their forwarding decision on network-level addresses,
packets that are routed over a WAN are transmitted without Media Access Control
(MAC)-layer addresses. Additionally, address resolution procedures (ARP) that can
be used to determine the destination MAC address for a packet are not required.
Conversely, packets that are bridged over a Wide Area Network include MAC-layer
information. Address resolution procedures are required.
MAC-Encapsulated Routing uses network-level addresses for forwarding decisions
but transmits MAC-layer addresses over the Wide Area Connection. Additionally,
address resolution procedures are used. To the remote site, the packets appear as
if they had been bridged.
This feature allows the routing features of the OfficeConnect Gateway (DHCP
Server, DNS Proxy, etc.) to be employed in a bridged environment.
If the configured network service is RFC 1483, then the packets will be
encapsulated in a bridged-1483 format. If the configured service is PPP, then the
packets will be encapsulated in Base Routing Conformed Path (BRCP).