Avaya 38DHB0002UKDD Manual Do Utilizador

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Page 52 - Service Configuration 
The Configuration Tree Functions 
The Fallback Tab 
 
The Fallback tab enables you to switch to another service, either automatically, 
as defined by a time profile, or manually. In this way you can take advantage of, 
say, a cheaper off-peak service provider or change quickly to a standby service 
provider should your own be out of service. 
The Time Profile and Fallback Service are selected from drop-down lists showing 
all those currently configured for the system. Ticking the In Fallback box 
immediately switches to the Fallback service. 
 
The PPP Tab 
Point-to-Point Protocol (PPP) is a protocol used with various host-to-client and 
router-to-router dialled service applications. It offers a number of facilities, such 
as PAP/CHAP password authentication, compression, and dynamic bandwidth 
allocation. 
 
Header Compression Mode: Enables the negotiation and use of IP Header 
Compression. Supported modes are IPHC and VJ. 
CHAP Challenge Interval (Seconds): The period between successive CHAP 
challenges ("Handshakes"). Some applications, such as Windows 95 Dial-Up 
Networking, do not support this facility. In these cases, the field must be left blank 
or set to zero. 
Incoming traffic does not keep link up
When selected then, if connected to the Internet and nothing is being sent by 
IPNC, the call will be dropped after a pre-set time (idle time). 
Van Jacobson Header Compression: Used to reduce PPP header size and 
hence improve bandwidth utilization. 
Multilink: Enables negotiation and use of the Multilink protocol (MPPC) on the 
link(s) into this service. Multilink must be enabled if there is more than one 
channel that is allowed to be Bundled/Multilinked to this RAS service. 
Page 52 - The Configuration Tree Functions 
INDeX IPNC Cassette Administration Manual 
Service Configuration 
38DHB0002UKDD – Issue 7 (22/11/02)