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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

1296.0. "DECnet routing between remote sites through Frame-relay" by DEKITG::JUNGYOUNGNAM (Angelo Nam - hidden village!) Tue Apr 15 1997 04:55

We have 6 remote sites connected by frame-relay links to the headquater.
We used DECbrouter 90 and set up ip and DECnet protocols and running
well except a minor DECnet problem.

Problem is that we can't access each remote sites via DECnet protocol.
DECnet from/to headquater and remote sites works well.
We set up headquater brouter's DECnet address 22.35 and made it as a
area router. Each remote site brouter is area router and has given unique
22.* DECnet address. When we look into the headquater brouter console for 
DECnet routing,

 Headquater# show decnet route

          ---> shows us every DECnet address including 6 remote sites
               indicating serial 0 is used for remote site DECnet path

When we issue the above command at the remote site's brouter console,

 Remote1# show decnet route

         ---> shows us every DECnet address except 6 remote site's brouter
              and system DECnet address.

Following is simple network topology for easy understand.

			   Headquater
			     22.35
			       |
		          ===========
		          Frame Relay
		===============================
                |     |     |     |     |     |
               r1    r2    r3    r4    r5    r6
             22.41 22.42 22.43 22.44 22.45 22.46

If someone out there has any ideas, let me know.

Thanks, Angelo
    
T.RTitleUserPersonal
Name
DateLines
1296.1DECnet split-horizon?ORION::OUIMETTEZat was Zen, Dis is Dao...Fri Apr 18 1997 14:0020
    	Angelo,
    
    It's been many moons since I played with this, but there was a "no
    decnet split-horizon" command added for Frame relay in later versions
    of DECbrouter software. I believe it was a interface subcommand. In
    earlier versions, routing information learned on one DLCI/subinterface
    wouldn't be propagated out other interfaces, i.e., split-horizon
    behaviour was enforced by default.
    
    I would suggest you try this command, and if it fails or is
    unrecognized, you should probably post the output of:
    
    SHOW VERSION
    WR TERM
    SHO DECNET ROUTE
    
    	from the HQ & a couple of the remote sites to this note...
    
    -Chuck
    
1296.2Console outputDEKITG::JUNGYOUNGNAMAngelo Nam - hidden village!Mon Apr 21 1997 03:51105
I can't find out "# no decnet path-split" command anywhere in the command 
prompt. So I posted here console outputs that you requested to me.
 
dektgr#sh ver
Cisco Internetwork Operating System Software 
IOS (tm) 3000 Software (IGS-BPX-L), Version 10.2(5), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1995 by cisco Systems, Inc.
Compiled Thu 23-Mar-95 01:52 by kmac
Image text-base: 0x03025DC0, data-base: 0x00001000

ROM: System Bootstrap, Version 4.14(8), SOFTWARE

dektgr uptime is 1 week, 6 days, 16 minutes
System restarted by power-on
System image file is "igs-bfpx-102-5", booted via flash

DECbrouter 90 router (68030) processor (revision A) with 6140K/2048K bytes of memory.
Processor board serial number 00000000
SuperLAT software copyright 1990 by Meridian Technology Corp).
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
1 Ethernet/IEEE 802.3 interface.
2 Serial network interfaces.
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)

Configuration register is 0x102

dektgr#wr term
####
Current configuration:
!
version 10.2
!
hostname dektgr
!
enable secret 5 $1$wLE3$tqZ75EZ6fzB/2n/aFkL2A.
enable password Dektgr
!
!
decnet routing 22.130
decnet node-type routing-iv
decnet path-split-mode interim
!
!
interface Ethernet0
ip address 16.166.224.161 255.255.255.240
decnet cost 10
lat enabled
!
interface Serial0
ip address 16.166.224.4 255.255.255.240
decnet cost 10
lat enabled
mop enabled
frame-relay lmi-type ansi
frame-relay map ip 16.166.224.2 16 broadcast
frame-relay map decnet 22.35 16 broadcast
!
interface Serial1
no ip address
shutdown
lat enabled
mop enabled
!
router rip
network 16.0.0.0
!
ip classless
!
lat service DEKTGR enabled
!
line con 0
password Dektgr
login
!
end

dektgr#sh decnet route
  Node       Cost  Hops   Next Hop to Node       Expires  Prio
*(Area)       10     1     Serial0 -> 22.35  
*22.31        15     2     Serial0 -> 22.35  
*22.32        15     2     Serial0 -> 22.35  
*22.33        15     2     Serial0 -> 22.35  
*22.34        15     2     Serial0 -> 22.35  
*22.35        10     1     Serial0 -> 22.35        34      64    V+
*22.37        15     2     Serial0 -> 22.35  
*22.38        15     2     Serial0 -> 22.35  
*22.39        15     2     Serial0 -> 22.35  
*22.41         0     0     (Local) -> 22.41
*22.51        10     1   Ethernet0 -> 22.51        38
dektgr#

--> The above command has been issued at the one of the remote site's 
    DECbrouter named dektgr.

	Router DECnet address (dektgr) is 22.41
        System with DECnet address 22.51 is up and running on the ethernet 
        side of router.

--> The routing table must exhibits 22.42, 22.43, 22.44 and 22.45 for other
    remote sites finally.

Thanks, Angelo
    
1296.3In 10.2(9.2)ORION::OUIMETTEZat was Zen, Dis is Dao...Thu Apr 24 1997 15:0416
    	Angelo,
    
     The "no decnet split-horizon" command was introduced for frame relay
    configurations like yours in 10.2(9.2):
    
    CSCdi41453 request for new knob: no decnet split-horizon
    
    	Take a look at the lkits pointer in note 6, and pull down the
    latest 10.2 (or 10.3, if applicable for your customer's site) kit; you
    should then be able to issue this interface command, and remote sites
    should learn about other remote sites.
    
    	regards,
    
    -Chuck O.
    
1296.4I will upgrade firmwareDEKITG::JUNGYOUNGNAMAngelo Nam - hidden village!Thu Apr 24 1997 21:544
    I will upgrade firmware during next week.
    
    Thanka a lot,
    Angelo