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Conference kali::dewbr

Title:DECbrouter-90T2,-T2A,-T1
Notice:Kits, DOCs, Release notes, SPDs notes 1-10
Moderator:FOUNDR::SHEEHAN
Created:Wed Dec 23 1992
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1313
Total number of notes:4889

1272.0. "Brouter and X25router" by TKOV51::EGAWA (Kiyoshi Egawa DTN:699-7215 SalesSupport/Japan) Mon Feb 17 1997 18:41

Hi,

I have a primary questions on X.25 capability and interoperability.
Customer plans to install Brouter insted of X25router(DEMSA).

(1) Is Brouter interoperable with X25router2000 via PSDN(PVC) for DECnet IV ?

(2) May I expect below configuration ?
    Brouter support GAP ?

                         GAP
    OpenVMS Alpha V6.2 -------- Brouter  ---- X.25
    X.25 for OpenVMS


Thanks,
Kiyoshi

T.RTitleUserPersonal
Name
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1272.1Routing or Application Program ?HTKING::M_SHELDONMon Feb 17 1997 22:2331
>I have a primary questions on X.25 capability and interoperability.
>Customer plans to install Brouter insted of X25router(DEMSA).
>
>(1) Is Brouter interoperable with X25router2000 via PSDN(PVC) for DECnet IV ?
>
>(2) May I expect below configuration ?
>    Brouter support GAP ?


The DECbrouter 90's code comes from CISCO. It does not support X25GAP
and will not act as a direct replacement for a single DEMSA-based
X25router with a PVC.

It is also unlikely to change. What developement is still going on in 
recent years has been in the area of X25 Switching in the Distrbuted 
Routing code (not the DECbrouter 90). X25GAP requires a DECnet stack on 
both the host and the gateway. X.25 switching uses LLC2 and therefore 
makes it more atractive for use with Digital Unix, and other multivendor 
environments.

Is your intention to route DECnet PhaseIV across this PVC, or
do you have an X.25 application program running on the host system ?
If all you are doing is routing DECnet PhaseIV, then you are not even 
using the X25GAP protocol. In that case you could route DECnet PhaseIV
across the PVC with a DECbrouter 90 at each endpoint.


						Mike Sheldon
						CSC/CS Network Support