| 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 |
Hi,
A customer of ours would like to know if it's possible to see
a multiprotocol router (a Cisco) with N interface (so N IP
address) like a single entity.
It's an architectural question, with a lot of pratical aspects
involved, for example means that a ping to this router fails only
when any of if interfaces are unreachable, that if you've backup
link you could continue to export data, etc.etc.
For what I know of MCC, that's not possible, 1 address = 1 entity.
Perhaps MCC/MSU is able to do that, I know it just a little.
It seems also that if, like this customer, you have defined 1
router with more than 1 couple address/name like this:
UCX> sho host faeta.unipi.it
BIND database
Server: 131.114.2.100 FIGARO.CNUCE.CNR.IT
Host address Host name
131.114.21.99 FAETA.UNIPI.IT
131.114.1.4 FAETA.UNIPI.IT
131.114.248.2 FAETA.UNIPI.IT
131.114.253.1 FAETA.UNIPI.IT
both the autotopology, than MCC itself has problem to manage it,
entity partially registered, MCC's query returned with error like:
SNMP NETMON_NS:.ip.GARR-gw-mi-infn-it
AT 13-AUG-1993 14:58:49 Characteristics
No internet name or internet address registered
on UCX it's appear regurarly:
UCX> sho host GARR-gw.cnr.it
BIND database
Server: 131.114.2.130 ICNUCEVX.CNUCE.CNR.IT
Host address Host name
131.114.1.3 GARR-GW.CNR.IT
192.12.192.2 GARR-GW.CNR.IT
192.12.193.14 GARR-GW.CNR.IT
131.196.64.2 GARR-GW.CNR.IT
And for the little I know MCC check first is dictionary and then the
naming server (UCX in this case).
That's all, in base of my MCC's knowledge, i was able to understand.
Hoping to be wrong.....
Ciao Luciano
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 5480.1 | Just a possible solution... | ZTOIS1::VISTA | Renato VISTA, MCS/SPS France/Strasbourg | Mon Aug 16 1993 12:11 | 41 |
Luciano,
It is right that using POLYCENTER Network Manager 200 and willing
managing an multiple IP address as a single global entity is not very
easy.
Nevertheless, and because you've titled your item in architectural
term, let me propose you an architectural solution.
To manage CISCO Router (with more than one physical interface/line),
you have to consider twao main things :
1) the localisation of your Network Management Platform (NMS)
(physically, ie "before" ethernet controller, logically in a Internet
Network, ie the same as your NMS platform)
2) the monitoring mode, ie :
. to monitor all equipments constituing the network from
your NMS interface to the CISCO/ethernet interface, (ie
Controller, DropCable, Transceiver, passive Repeater,
DELNIs, ...) you have to use a POLLING mode, based on
IP/ICMP poller (ie ping...) ; so you stay in the same
INTERNET network
. for other CISCO interfaces (serial,...), you may
use the natural asynchronous mode based on generic linkUp &
linkDown SNMP/TRAPS
Whatever you do, the polling mode (ping) is very usefull to be sure
that asynchronous events can sent over the physical/logical
ethernet/internet network to your NMS platform !!
This kind of monitoring has been set on my own customer sites.
I hope this will help you.
Renato
| |||||
| 5480.2 | Thanks, but I don't think customer love it.. | MLNCSC::BARILARO | Fri Aug 20 1993 05:22 | 45 | |
Hi Renato,
Sorry for the delay in my answer.
Yes, I use the same solution for other customers, using traps or
checking the Ifoperstatus of the other interfaces to to see the
status of the other links.
BUT that's applicable only if you have a single path to reach the
entity, or exist an interface that you could consider the most
important (for example the ethernet inteface of the remote CISCO
that permit you to reach the remote subnet).
In this customer environment (It's the italian Universities link
to Internet, a network called GARR) there isn't this situation,
the network is something like this:
Ethernet 1
___
Eth2 |
|-- Milan<--------->Turin
| |
| |
Pisa<---------->Florence
So, for example, which interface address I've to use to register
the Milan's CISCO if my netmgt system is located in Pisa?
What if, from customer point of view, there isn't a more important
remote LAN, or more important serial link, but he wants only
know the state of his links (and he has some CISCOs with more than
20 interfaces all used..., up to 4 different Ethernets and 18
serial line).
By now, I was forced to register all the IP addresses for the more
important CISCOs giving to each one a different name (so forcing
the customer to forgot for his BIND services, thing that he doesn't
like at all), using the icon "line" to draw the remote links.
That's is a solution that the customer doesn't love.
So, solutions, also suggestion of other products (ie MCC/MSU), that
could better match its needs should be great.
Ciao Luciano
| |||||
| 5480.3 | see also note 4988 | CSOADM::ROTH | Former K-notes, NOTES11 and Vnotes user | Fri Aug 20 1993 12:59 | 0 |