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| Title: | DECmcc user notes file. Does not replace IPMT. |
| Notice: | Use IPMT for problems. Newsletter location in note 6187 |
| Moderator: | TAEC::BEROUD |
|
| Created: | Mon Aug 21 1989 |
| Last Modified: | Wed Jun 04 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6497 |
| Total number of notes: | 27359 |
5394.0. "ELM/DECbridge 610 manual mode problem" by MAN02::STRUTH (Thomas Struth CS Mannheim) Tue Jul 27 1993 06:56
MCC 1.3, ELM-AM 1.3, DECbridge 610, ROM Version 2.9.0,
Softw. Version V1.2B , MANUAL MODE .
Can someone help me with the following problem: Our customer wants to
allow only few addresses to pass port 4 of a DECbridge 610, which connects
his backbone to a new FDDI ring ( with no stations connected yet )
I first set line 4 to manual mode. The immediate effect was that I could
not access any other bridge / concentrator on the ring ( ok. )
After creating a static entry for my mcc station, I thought I would be able
to pass that port and be able to access the other bridges/concentrators
connected to the ring like I did before. My mcc station is connected to the
LAN segment at port 4 of that bridge.
MCC> CREATE ...STATIC ENTRY <addr> forward ports (1,2,3,4)
MCC> show bridge .kwl.p_rz_b3 forw data static entry aa-00-04-00-98-55 all attr
( this is the entry for my mcc station: )
Bridge KLVZ01_NS:.kwl.p_rz_b3 Forwarding Database Static Entry AA-00-04-00-98-55
AT 26-JUL-1993 15:06:18 All Attributes
Address = AA-00-04-00-98-55
Last Port = 4
Outbound Port = 4
Disposition = Learned
Management Created = True
Permanent = True
Control Information = Outbound Port is learned
Forward Map = ( (
inbound port = 1,
outbound ports = ( 2,
3,
4 ) ),
(
inbound port = 2,
outbound ports = ( 1,
3,
4 ) ),
(
inbound port = 3,
outbound ports = ( 1,
2,
4 ) ),
(
inbound port = 4,
outbound ports = ( 1,
2,
3 ) ) )
This seems to be ok for me, ?? but I can't get across that bridge , until I
create an entry for the other bridge/concentrator I want to access with mcc
/RBMS protocol .
I did another test , trying to access a decnet node connected to another
bridge at the ring. I was not able to communicate, even with entries for both
addresses.
I can only reach it after disabling manual mode.
So for me the results are: Accessing other bridges (RBMS protocol)
across the manual-mode bridge works with entries for both communicating
stations. Using DECnet , I cannot get across this bridge even with two
entries. ( I expect the same result for other protocols )
Thanks in advance for any help,
Thomas
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 5394.1 | Mutlicast addresses are destination addresess | GADWAL::WOESTEMEYER | Why??...Why not!!! | Tue Jul 27 1993 08:47 | 8 |
| Give this a shot. With Manual mode enable, both source and destination
addresses but be entered with a disposition of forward. What I think
you have left out are the DECnet mutlicast addresses. These are also
destination address and must be specifically allowed to forward.
Steve Woestemeyer
CSC/CS - Network Support team
|
| 5394.2 | same result | MAN02::STRUTH | Thomas Struth CS Mannheim | Wed Jul 28 1993 09:05 | 17 |
|
re: .1
We made some more tests , with multicast entries for LAT and DECnet,
and with both source and destination entries, same result.
It is not possible to create an entry like:
MCC>create bridge ... forwa data static entry ... DISPOSITION = FORWARD
on that multiport bridge.
We created the entries with
MCC>create bridge ... forwa data static entry ... forw ports (1,2,3,4)
I think this is the right way to set the disposition to forward on a per- port
base.
We will upgrade the bridges now from 1.2B to V1.3 . I hope this will fix it.
Thomas
|