Enterasys atx Betriebsanweisung

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Introduction
1-21
The ATX uses a standardized internal format called canonical 
format, for packet translation. (Refer to Appendix B, Packet 
Translation Procedure
 for an explanation of the packet translation 
procedure.) The ATX converts all incoming packets into its internal 
format and then converts each packet from its internal format to 
either FDDI, Ethernet, or Token Ring format, depending on the 
packet's destination.
The ATX can interoperate with other vendors' translating bridges. 
Translation allows end-nodes to reach destinations on the FDDI 
ring as well as destinations attached to other vendors' translating 
bridges and routers. In Figure 1-5 for example, ATX A or ATX B 
could be bridge products from other vendors.
1.8  ROUTING FUNCTIONS
The ATX can route packets that use the IP and IPX, and Appletalk 
protocols. A brief overview of these follows. For more in-depth 
discussions, refer to the books listed in the section, Related 
Documentation
.
Note:
When the ATX is not configured for routing, it’s necessary to 
establish a default gateway so that management can take place 
using a SNMP agent. To establish a default gateway connection, 
apply the route add command through LCM using the following 
format: 
route add IPaddr Gwaddr PORT# [hops] 
[IPmask]
.For example: 
route add 0.0.0.0 
176.16.107.19 3
 This command establishes port 3 as the 
default gateway to the router at 176.16.107.19. Any port (2 to 41) 
can be the default gateway. The IPaddr 0.0.0.0 signals that this is 
the default gateway specification. Other addresses can be used to 
explicitly and statically route some IP trafic while remaining in 
bridging (rather than routing) mode. SNMP management stations 
are now able to poll the ATX locally and remotely, but this does not 
permit the ATX to send SNMP traps to multiple SNMP 
management stations. To identify a specific SNMP management 
station where traps are sent, change the [configNMSAddress] MIB 
located in the MIB tree at: