Cabletron Systems W85 Manual De Usuario

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Features
HSIM-W85 User’s Guide
1-5
 
 
DS1 MIB Support
 
 
LANVIEW LEDs
 
1.5.1
Connectivity
 
The HSIM-W85 module supports WAN technology using eight live full 
duplex T1 connections.
The primary function of the HSIM-W85 is to provide LAN-to-WAN 
access. WAN physical connectivity will be supported through the use of a 
T1 interface. LAN-to-WAN connectivity will be supported through 
HDLC and T1 Inverse Multiplexing (IMUX). 
The HSIM-W85 interoperates with those Cabletron Systems WAN 
products that support raw HDLC as the WAN protocol. This support is 
limited to the CyberSWITCH product line which supports HDLC:
 
 
CSX400 – Version 02.00.15 or higher 
 
 
HSIM-W6 – Version 02.00.15 or higher
 
 
HSIM-W84 – Version 02.00.xx or higher 
 
 
HSIM-W87 – SSR 2200 Version 04.05.06 or higher
 
1.5.2
HDLC
 
The High-level Data Link Control (HDLC) protocol is used in 
conjunction with the Inverse Multiplexing (IMUX) feature to conserve a 
user’s WAN bandwidth between two Cabletron Systems products, over a 
point-to-point connection. Cabletron Systems products such as the 
HSIM-W6, HSIM-W84, HSIM-W85, HSIM-W87, and CSX400 must be 
in use on both ends of the WAN link for these functions to work. The 
HDLC (RAW) protocol reduces the amount of overhead information that 
needs to be contained within each data packet to direct it to its destination. 
This decreased packet overhead provides the IMUX functions with more 
bandwidth to transfer user data.