Uwe, you are almost right. Netview draws one segment per protocol per network.
It does NOT
attempt to show relationships between nodes and hubs and bridges, other than
the fact that they
share a network address, and it shows this by putting them in the same segment,
if they are of
the same protocol, or in different segments in the same network submap
('network' here meaning
'subnet' as defined by the subnet mask.) The only devices drawn as Connectors
are routers.
Routers are anything with multiple interfaces and ipforwarding turned on. This
is on the IP Internet
submap (to map). Desgnating things as H or B only gets them promoted from the
Segment level
submap to the Network level submap.
You have probably seen LNM/6000, or its current incarnation, the LNM component
of Nways
Manager for AIX, which is able to draw LAN segments between bridges, etc. This
is largely
a TokenRing tool, and gets its information from proprietary mibs in the network
devices. It is a
separate topology. Netview does not provide this function in the IP Map
application.
Cordially,
Leslie Clark
IBM Global Services - Network & Systems Management - Detroit
----------------------------------------------------------------------------------------------------------------------------------------------------------
Hallo Roman,
you have right.
I don't sure, but I thing Netview makes more Segments in Network-Submap, then
Netview detect more Interface-Types (over SNMP) in a IP-Network.
I've seen a Layer2-Network with Nways and LNM-Option.
Does anybody known this perfectly ?
Uwe
>===== Original Message From Tuchyna Roman <SMTP:NV-L@UCSBVM.UCSB.EDU> =====
>On Tuesday, July 21, 1998 9:38 AM, Uwe Richter
>[SMTP:Uwe.Richter@SYNTHESIS.DE] wrote:
>> Have you the right SNMP-Communities?
>> Netview need the SNMP-Communities for Discover the Subnetmask, then
>> you don't use the default mask.
>>
>
>Yes, I can use xnmbrowser for checking snmp variables from hubs, but I
>guess netmon needs subnetmask just for discovering networks, segment
>discovering is realized by identifying connector devices such hubs,
>bridges... (maybe I'm wrong...???)
>
>Roman
>
>
>> regards
>> Uwe
>>
>>
>> >===== Original Message From Tuchyna Roman <SMTP:NV-L@UCSBVM.UCSB.EDU>
>=====
>> >Hello,
>> >
>> >We have following problem: in our network NV 5 can't discover
>segments.
>> >All nodes are placed in one segment, so every network contains just
>one
>> >segment. We are using 3Com hubs (with management module) SuperStack
>II,
>> >switch LinkSwitch 1000 and some hubs without management module.
>> >Modification of entries for these hubs in oid_to_type (flags H or B)
>> >doesn't help.
>> >
>> >Does anybody have any similar skills?
>> >
>> >TIA
>> >
>> >Roman
>> >
>> >------------------------------------------------------------
>> >Roman Tuchyna ADDRESS: Datasys, s.r.o.
>> >TEL: +4202 61388211,61388241 Sinkulova 77/23
>> >FAX: +4202 61388210 147 00 Praha 47
>> >E-MAIL: tuchyna@datasys.cz Czech Republic
>> >
>> >#include <std_disclaimer.h>
>> >------------------------------------------------------------
>
>
>------------------------------------------------------------
>Roman Tuchyna ADDRESS: Datasys, s.r.o.
>TEL: +4202 61388211,61388241 Sinkulova 77/23
>FAX: +4202 61388210 147 00 Praha 47
>E-MAIL: tuchyna@datasys.cz Czech Republic
>
>#include <std_disclaimer.h>
>------------------------------------------------------------
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