| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 318.1 | Need bridge for repeater management | QUIVER::GAUDET | | Wed Jul 28 1993 18:34 | 11 |
| You are correct in all your assumptions. Without the management cable
between the two hubs, the repeaters in Hub 2 are not manageable without
a bridge in that hub. The hub needs a bus master to manage devices
over the backplane management bus, and with V1.1 of the DECagent, the
DECbridge is the only supported bus master.
V2.0 will allow the DECagent to be bus master, but you'll obviously
need a bridge in each remote hub in order to manage repeaters. I'll
leave it to others to discuss the schedule.
...Roger...
|
| 318.2 | a little more clarification... | ODIXIE::RICHARDSON | Are we there yet?? | Tue Aug 03 1993 12:55 | 19 |
| So to clarify.. When V2.0 (of decagent) comes out (last rumor I heard
was Jan 94?), the DECagent can be the bus master and a bridge will
NOT be needed, right? Until that time, a bridge is necessary to
manage repeaters.
The customer is not real happy about this since they stopped buying
fiber bridges when the fiber repeaters came out (due to cost). Also
since they were told that the repeaters could be managed without a
bridge (they were told this by someone at remote support). Their hubs
are now full with repeaters and servers and now need bridges. I guess
the servers (90L+'s) can be managed (standalone) with the DECagent but
if they are to be "hub represented", the Agent needs to be in the hub
with the servers, right?
Guess I'm the lucky dog to break the news to them....
That's why we get paid the big bucks we do... yea...RIGHT!!
Thanks for the help.
|
| 318.3 | DECagent 90 SPD confusion | ODIXIE::RICHARDSON | Are we there yet?? | Tue Aug 03 1993 13:01 | 9 |
| I forgot I had another question...
In the DECagent 90 V1.1 SPD it says that the DECagent 90 provides SNMP
proxy support for the DECrepeater 90FL and DECrepeater 90FA. What
exactly does this mean. To me it implies that it will manage these
guys but I know differently. Is it talking about managing them as
standalone devices? Or does it mean that it only manages these devices
via the DECbridge 90. It does say that "It also asks the bridge for
repeater port information". This SPD is rather confusing...
|
| 318.4 | Hope this clears it up | QUIVER::GAUDET | | Tue Aug 03 1993 15:01 | 31 |
| Correct. V2.0 of the DECagent will support bus mastership without the
need of a bridge for repeater management.
Terminal servers do not require an agent (or a bridge) to be in the
same hub. Add a new SNMP community to the agent which consists of the
hub containing terminal servers, specify which slots the servers are in
and voila, "hub represented" terminal servers (to use your
terminology). Terminal servers are managed via MOP over the network.
Older (pre-October 1992?) DECserver 90L+'s do not support the hub
backplane management protocol. The newer (after October 1992?) 90L+
servers do respond on the backplane, but this is used only for
auto-discovery by V1.1 of the DECagent.
To your question in .3, proxy management means that we (the DECagent)
speak a protocol other than the management protocol (SNMP) to devices
you wish to manage (proxy :== "on behalf of another"). The management
station (HUBwatch) speaks SNMP to the DECagent and we speak "whatever"
(in the case of the repeaters, that would be RBMS to the bridge which
then speaks on the hub backplane to perform the desired operation to
the repeater). In V2.0, the DECagent will speak "backplane" directly
to the repeaters in the same hub (or double hub), thus eliminating the
need for a bridge for repeater management in that hub (you may,
however, still want a bridge for "bridging" functions, but that's
another issue). Remote hubs will still need a bridge for management of
repeaters in that hub. Since the 90-series repeaters speak only
"backplane" they are not manageable outside the hub (i.e. as standalone
devices).
Now go earn those big bucks! :-)
...Roger...
|
| 318.5 | option = DECbridge or DECagent 90 V2.0 in each hub for managment | NAC::FORREST | | Tue Aug 03 1993 19:04 | 12 |
|
Just a small clarification on what Roger said in .4
>Remote hubs will still need a bridge for management of
> repeaters in that hub.
With DECagent 90 V2.0, you can have a DECagent in the remote hub
to do the backplane management, instead of a DECbridge. The DECagent
is a few hundred dollars cheaper, and if your remote hub is
routed instead of bridged or repeatered?, you'll need the DECagent
at the remote site anyway, since RBMS won't get passed over the
WAN.
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