3Com 812 manual Set bridge agingtime seconds

To change the Spanning Tree Priority, use the command:

To disable or enable Spanning Tree, use the commands:

To change the Forwarding Delay, use the command:

MAC-Encapsulated Routing 6-21

Except for enabling Spanning Tree, most users do not need to change the advanced parameters from their default settings

The Aging Time is the time (in seconds) for aging out forwarding table information.

To change the Aging Time, use the command:

￿set bridge aging_time <seconds>

The Forward Delay is the time (in seconds) to wait while learning forwarding information before starting to bridge packets.

￿set bridge forward_delay <seconds>

Spanning Tree refers to the Spanning Tree Protocol which is used to eliminate network loops between bridges.

￿disable bridge spanning_tree enable bridge spanning_tree

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.

￿set bridge spanning_tree_priority <priority value>

MAC-EncapsulatedBecause routers base their forwarding decision on network-level addresses,

Routingpackets that are routed over a WAN are transmitted without MAC-layer addresses. Additionally, address resolution procedures 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 Connection 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 Remote 812 (i.e., address translation, DHCP Server, DNS Proxy, etc.) to be employed in a bridged environment.

Configuring MAC-Encapsulated Routing is specified on a per-VC basis. When MAC-EncapsulatedMAC-Encapsulated Routing is enabled in a VC profile, packets for the routed

Routing protocols configured by the profile (i.e., IP and/or IPX) will be sent using the appropriate bridged encapsulation. If the configured network service is RFC 1483,