3com LANplex 6000 Manual De Usuario

 

nonvolatile RAM so they will survive a power loss or system initialization. 
Source Routed traffic is not forwarded while in this mode.

 

In Source Routing (SR), the packet contains information in the Route 
Information Field (RIF), which specifies the route the packet should follow in 
order to reach its destination. Through the process of route discovery, the 
packet determines various routes available and embeds this information as 
Ring Numbers and Bridge Numbers within the RIF. The bridge compares the 
RIF to its configured Bridge Numbers and Ring Numbers for each port and 
forwards the packet if appropriate. The TRSM utilizes one hop between any 
two ports on the module.

For Spanning Tree, the network mesh topology is reduced to a single path 
utilizing IEEE 802.1d Spanning Tree. 

Transparent traffic is not forwarded while in this mode. 

 

The Source Routing-Transparent (SRT) operation complies with the 802.1d 
standard which provides bridging for both Source Routing and non-Source 
Routing protocols. It uses the Route Information Indicator to differentiate 
between SR and non-SR packets and applies the appropriate bridging 
method on each packet received. 

To configure the Bridging mode, see Chapter 11:

 

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Protocol addresses on Token Ring are defined in non-canonical format while 
FDDI is defined in canonical format. For a workstation on Token Ring to 
communicate with a server on FDDI, it is necessary to reformat or translate 
these embedded protocol address. The TRSM supports translation between 
Token Ring and FDDI for the following protocols: IP, IPX, NetBIOS, and SNA. 

Translation is not necessary if FDDI is only used as a transport media 
between TRSMs. Since this feature may degrade performance, it is 
recommended that you disable the translation feature when FDDI is used 
solely as a transport media.