Cabletron Systems W85 ユーザーズマニュアル

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Chapter 1: 
 
Introduction
 
1-6
HSIM-W85 User’s Guide
 
1.5.3
Inverse Multiplexing (IMUX)
 
Cabletron Systems Inverse Multiplexing (IMUX) feature provides 
enhanced throughput for users by following this process:
 
 
The IMUX function evenly distributes a data packet stream from the 
LAN interface through multiple full T1 WAN interfaces on the 
HSIM-W85. 
 
 
Data packet streams received by the WAN interfaces on the other end 
of the WAN links are then recombined, ordered, and transmitted to the 
LAN interface.
The IMUX function is configured using the Network Tools command, 
imux, described in 
.
 
1.5.4
Priority Queuing
 
WAN IP Priority Queuing is used to prioritize IP packets from a specified 
IP address. This prioritizing ensures that certain packets get through the 
network, such as management packets which are necessary to the 
operation of the network. It also ensures that routers that depend on 
protocols with tight timing, such as RIP, do not time out. The prioritized 
packets do not eliminate other traffic on the network, but are held in a 
special queue, so that they are not discarded during oversubscribed traffic 
peaks. Priority Queuing can be enabled in management, using Network 
Tools. Refer to the wanpq command in the 
 
 
NOTE
 
Cabletron Systems products that support Inverse Multiplexing 
(IMUX), such as the HSIM-W6, CSX400, HSIM-W84, 
HSIM-W85, and HSIM-W87, must exist on both ends of the 
WAN link for the IMUX function to work. All bridging and 
switching functions, such as 802.1D, SecureFast VLAN, and 
802.1Q are able to run as normal on the host platform when 
using the IMUX function on the HSIM-W85.