Questions LRS-Network

Hallo everybody,
I am working with the network model and I have several questions especially relating to the lrs network.
I have a utility datamodel with several tables. Each table has a geometry column but only for one table or the features in this table I want to calculate the tspPath(). So for the relevant table I wanted to change the entries in the geometry column that I have a 3rd measure dimension (the distance). Until now I have only 2 dimensions. Do I have to change all tables that there is a 3rd dimension even when it is null so that I can even use this tables?
My questions:
Can I mix lrs network and sdo network? Or how can I solve this problem?
Can I visualize an lsr-netwirk in mapviewer?
Thanks,
Katrin

Hi Katrin,
In order to use the Network Data Model you need a table with nodes, and a table with links.
Each node has to have an id
Each link has to have a start node id and an end node id.
To do a Travelling Salesman Problem, you also need a cost column in the link table with cost information.
That is all that is required for the analysis portion.
To use with MapViewer, you can have SDO_GEOMETRY information or linear referenced SDO_GEOMETRY information. This geometry information is only used for display, and is not used in any analysis by the Network Data Model.
If you want cost information to be related to link length, you can populate it in the link table by calculating the length of the link and storing it in the cost column.

Similar Messages

Questions on the LRS network model.

On page 6-26 of the "Oracle Spatial Topology and Network Data Models" documentation, the example shows that measures are recorded in the 'roads' table (i.e. the one with the geometry of the feature).
1. Why in this example is 'null' used for Node 5 ('...automatically calculated and filled...') but not the others?
2. Why in this example is measure even necessary? There is no link to the underlying route from this table (i.e. measures should only be recorded in the context of a given route).
3. It seems like this measure is merely the offset from the starting vertex (not true LRS); do we have the wrong interpretation?
On Page 6-30, the example shows that measures are recorded for each Node and each Link. We had envisioned nodes and links being separate from the route they play a role upon. For example, if the same node was part of two distinct routes, does this mean storing two rows in "road_nodes"? But they're the exact same location and the same node in our network. The same question applies to the 'road_links' table. If the answer is 'duplicate the rows' in nodes and links (once per route), why doesn't 10g Spatial record 'measure' in the "road_paths" table? Note that, on page 6-31, it says that it is '...for possible future use...'...
This example also implies the rows in the roads table are replicated as the (m)easure of the geometry column would change based on the route involved? If this is not the case why store the measure in the geometry column at all?

Hi,
My name is Gary Wong, and the original poster was asking these questions on my behalf. I'd like to continue the thread below in-line....
A: This is a basic LRS concept. You can have some NULL
measure values, and LRS can compute the actual measure
corresponding to a NULL value. This has nothing to do
with Network modeling, so you can assume a valid
measure value here for this example.So this was just an example showing both 'manually calculated and entered' and 'let Spatial figure it out'? As this is merely the offset from the starting point, wouldn't a user always use NULL to let Spatial figure it out? It seems like this model will always use whole links in a contiguous fashion, so when would the measure not be the cumulative total?
2. Why in this example is measure even necessary? There
is no link to the underlying route from this table
(i.e. measures should only be recorded in the context
of a given route).So in this model (and example), the entry in roads is the route itself? Other LRS models allow the re-use of a common route, so multiple entries in the roads table would reference the same route (in another table). A real-life example is a single straight road that has different names, or has different road surface, or road classifications.
Folowing this example, if I wanted to spatially reference some other business attribution on an existing route, say R1, would I have to create another entry in roads and duplicate the data? Even if it has the same start/end locations and path?
A: Measure is always an offset from the start vertex
and this is true for any LRS system. I am not sure what
you mean by "not true LRS".My mistake in using these words; there is no true LRS, just different models/implementations of it =8^). Other LRS systems can have a measure beginning, say 2.5 metres after the starting node (node, not vertex; I define a vertex as as one of co-ordinates defining the link, and node as a topologically significant vertex such as the start and end vertices).
Hmmm, does this answer my first question above? If you wished to start a road (as per the example) slightly off of a node, would you enter a non-zero measure as the initial co-ordinate?
Assuming I'm on the right track (i.e. cannot re-use a route), does anyone know if Oracle plans to implement this kind of LRS in 10g Spatial?
I see a cryptic ".. for possible future use..." reference on page 6-31 regarding the create_path_table() and create_path_link_table() methods.
Is this future use to allow multiple uses and references of a route?
Thanks and sorry for the loooong email..
gary

Questions about networking a desktop app

So the background first: I'm working on a hobby program, and wanted to try my hand at networking it. It's a desktop app (a simple game) that two or more users can play at the same time. There's no centralized server to connect to, it will be an ad hoc connection. One user hosts a game (starts a server) and then others join the game (start their clients). I've done a lot of research, but still have some unanswered questions. I plan on using ssl encrypted socket connections. I used this tutorial to learn about trust managers and such.
My questions are:
1) What's the best way to give the users the info they need to connect to each other? I haven't looked into it yet, but I'm assuming it's not to hard to display the server's ip address, which they can give to the clients to connect to the server. PC games used to do this years ago before companies began hosting matchmaking services. Is there more required than that?
2) What's the best way to pick a port number that all user's have access to? I know I need to pick a port that isn't registered by another app, and that the port number will need to be given to the clients along with the server's ip. If the server is able to open that port, is there a situation where clients wouldn't be able to access that port?
3) Since this is basically a toy, I don't want to to the trouble of something like Verisign for security. Will a self-signed certificate authority be adequate? My concerns are not opening user's computers to attack, and protecting the data in transit. I know ssl will protect the data, but I'm not knowledgable with security to be sure if a shared trust manager will be enough to only let the app access the connection. What are the risks of someone bypassing the security and gaining access to our systems?
I've never written an application that had to deal with network security, so please pardon my paranoia, and thanks very much for any help.

If you are getting the week or intermittent wireless connection then,try the following settings on the router...Under the Wireless tab,Change the Channel Width to 20MHz and Channel to 11..Provide unique SSID.Under the Advanced Wireless Settings..Change the Beacon Interval to 50,Change the Fragmentation Threshold to 2304,Change the RTS Threshold to 2304 and Click on Save Settings...Power Cycle the network and check the connection.
WPA2 is very secured Secured type,so it is advisable to use it.However,it is not necessary to use WPA2.
If you are using "N"Router then,to get the full advantage of N Speed,you should "N" Adapter.
If you want to set the static DNS on the computer or any other wireless device then,you can set any DNS numbers.
To repeat the wireless signal of the N Router,I would suggest you to go for an Access Point like WAP610N.

Mixture of Wifi Questions (Extend network, Wireless Radio, etc)

Hey Apple Forums!
So here's the main issue. I've set up a network consisting of two routers. The first is a TC Dual-Band 2 (firmware 7.5.1) and the second is a TC (firmware 7.4.2). The first is connected to the internet and the second is in bridged mode; rather than being used in a WDS, I've set the second to extend the network of the first one, and I've made sure that the first has "Allow this network to be extended" checked. Neither one have any ethernet clients, just wireless. We're using DHCP, a WPA/WPA2 password, and the radio frequencies are automatic (2.4GHz N(B/G compatible), 5 GHz N(A compatible)).
As for the clients, we have a Wii, Xbox 360 (A/B/G wireless adapter), two macbooks (both 4,1), an iMac ('09-'10)), an iBook ('03-'04), a G4 Cube, and a Powerbook (12' Alum). Right now I'm operating all Network Administration from a Macbook.
I set up the second router to extend the first because we have the Xbox 360 and Wii in a room with poor signal, and we often traffic in there with the macbooks. Being the tech junkie and certified network technician, I thought back to my schooling and remembered that the more users on the network, the more the signal degrades over distance; this meant that we needed something to cover the room or else nobody would be able to connect in there (and if they could, the speed to do so would mimic dial-up. Yuck!). So I had it extend the first, have the WPA/2 key change every 12 hours (the homes here are spaced out, and if someone wanted free wi-fi they could use our Guest network)
I'm see two things wrong. The first is a random drop in our connection to the internet. While it may not necessarily be the router dropping it as it could be the network being too busy, we experience a 5-15 second block to connect to the internet perhaps around the hour and at random times. We did not have the problem before I set up the second router to extend our Dual-Band. However, I looked at the logs on the second router and found that the TKIP key was being rotated every few seconds
Aug 15 10:01:06 Severity:5 Rotated TKIP group key.
Aug 15 10:01:13 Severity:5 Associated with station 00:21:47:b5:20:d7
Aug 15 10:01:13 Severity:5 Installed unicast TKIP key for supplicant 00:21:47:b5:20:d7
Aug 15 10:01:23 Severity:5 Disassociated with station 00:21:47:b5:20:d7
Aug 15 10:01:24 Severity:5 Rotated TKIP group key.
(repeat every 1-4 minutes)
because our Wii was attempting to connect. I saw that I had set it up to connect with a WPA/WPA2 (AES) key, and promptly switched it to a WPA (TKIP); I cannot confirm the changes yet, but I figured that this may help slightly. I noticed no errors reported on the first router via logs, but did notice
Aug 15 09:30:03 Severity:5 Connection accepted from [fe80::21e:c2ff:feaf:8c1e%bridge0]:52084.
being spammed every few seconds or minutes. I figure this is normal and part of the bridge
Now the second isn't really a problem as I see it to be...wasteful. I know that the Dual-Band 2 uses the 2.4GHz as the guest band and the 5GHz for the secured wireless by default. When you put it into "allow to be extended", I found that both signals were broadcasted in BOTH frequencies. I used iStumbler when trying to determine the optimal placing of the second router, and found a duplicate network for our secured and guest networks. I'm guessing this is supposed to happen to allow routers with other frequencies to extend the signals (like how our second router is 2.4GHz only but can extend the 5GHz secured network), but to me it seems as though the router would be wasting power and time if the signals are being rebroadcasted (1 packet in 2.4GHz, 1 packet in 5GHz; wasting a few milliseconds that build over time) when they could stick to a single frequency. So the question is, can I swap the guest and main network frequencies to stop this redundant broadcasting as well as allow my secured network to be only in 2.4GHz mode?
Any questions, answers, or mere statements of information is appreciated!

Ok, so the TKIP key rotation and disassociation may be normal due to the encryption standards for both it and CCMP. However from what little I've found, the original Time Capsule using firmware 7.4.2 may be causing the intermittent drops
http://discussions.info.apple.com/thread.jspa?threadID=2037306
I'll try this tomorrow and see using my Xbox and Macbook (UDP streaming and TCP to be covered)

Mother of All Bonehead Questions---AirPort network. What can I do?

This is a very basic question. But, it's been driving me crazy.
Right now I have an AirPort Express plugged into my cable modem. This iMac is getting its internet through said AirPort.
My wife's eMac is plugged into the AP via a cable. That's how it gets internet though it really seems like the eMac has a slower connection. However, the wife doesn't surf much so it's not a big problem. (Though any words of wisdom would be nice.)
I suspect that if I knew what I was doing, the three problems below would go away.
-Our office computer (a Canon all-in-one jobber purchased last year) is hooked up to the eMac via another cable. As it stands now, I can't print anything from my computer without actually moving the printer cable.
-Also, we have one iTunes account. She buys her music and I buy mine. There doesn't seem to be anyway to share this music via the wireless network.
-Finally, our photo collections are slowly drifting apart. She has her film camera and I've got, you know, something from this century. Like the music and printer, I just suspect I should be able to share everything back and forth.
Thus far, the Apple.com website hasn't helped though I'm not very good at navigating it. I have a wireless network; it's working so Apple's happy.
But should I be able to do more?
Thanks,
Brian

Right now I have an AirPort Express plugged into my cable modem. This iMac is getting its internet through said AirPort.
My wife's eMac is plugged into the AP via a cable.
Since the AirPort Express Base Station (AX) only has one Ethernet port, I'm a bit perplexed on how you were able to accomplish this. Are you sure that your base station is an AX? Please refer to the following link to verify: Identifying AirPort hardware

Basic questions about Network Licence

Hi,
Before buying, I have some basics questions about the network licence of Acrobat
As an example, if I buy 5 network licence for 20 users.
If the 5 licence are used or if one user is outside and can't access the licence serveur, is there still some basic features available? I mean, is there a "acrobat reader" part that still allow users to read pdf?
In the same kind of problem, if 10 users are using Acrobat just for reading pdf file and that a user now want to use acrobat to create a pdf, is there still available licence or the 5 firsts that are just reading have take the 5 licences available?
Thank you for your answers

This is a user to user forum, with the space provided by Adobe
This is not official Adobe support... I think you need to contact Adobe

Question about Network In/Out in the Monitor of the Cloud Service

Hi there
My question is that what kind of data is the monitor monitoring? The monitor is in the cloud service.
And what are network in/out in the monitor stand for? The network in/out are in the monitor.
The monitor had monitored a huge amount of data in my cloud, but I have no ides what are they.
Thanks a lot!

hi Tianchi,
Thanks for your posting!
>>what kind of data is the monitor monitoring? The monitor is in the cloud service
From the concepts side, By default, minimal monitoring is provided for a new cloud service using performance counters gathered from the host operating system for the roles instances (virtual machines). The minimal metrics are limited to
CPU Percentage, Data In, Data Out, Disk Read Throughput, and Disk Write Throughput.
If you want to monitor other metrics, you could use the azure Diagnostic to custom
performance counter in your cloud service or set
Verbose setting on the azure portal. For this issue, I suggest you could refer to the concepts part of this page (http://azure.microsoft.com/en-us/documentation/articles/cloud-services-how-to-monitor/
>>And what are network in/out in the monitor stand for? The network in/out are in the monitor.
Base on my understanding, Network in/out include the
performance counter "Bytes receive" and "Bytes send". Maybe it seems that your data size of network in/out is huge amount. But only your outbound data
can be charged. Of course, if you have some doubt about data or data billing, you could contact Azure Billing support for more details.
Regards,
Will
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Question about network simlocks and countries

No, I'm not asking how to unlock the phone, as that would be unethical. (Whether or not it is illegal is an interesting question, but not one I'm prepared to venture into here.)
A friend of mine has a phone that is simlocked to Orange in the UK, and I'm contemplating buying it from him.
However, even though I'm with Orange, I live in Switzerland.
Will a phone simlocked to Orange(UK) work with Orange(CH)?

The simlock information stored in the usually specifies network operator and country. The phone may ignore the country setting if the operator information is correct but I wouldn't bet on it!

Questions on network multipathing

does anybody here has experience on setting up fjfe (FJSVfed) cards setup for multipathing?
and, also what is the PRIMECLUSTER for (solaris - fujits*) for? does the FJSVfed only supports there own tech?
there's this general way on setting up ethernet multipathing on cards, does this conflicts the way to multipath on fjfe cards?
hope that i am the right questions.. just new to multipathing.....
TIA.
Edited by: migraineph on Jul 3, 2008 12:33 AM

I am not able to ping the storage (192.148.217.1) from the server (192.148.217.91). ifcfg-eth1 is configured thus:
DEVICE=eth1
BOOTPROTO=static
BROADCAST=192.148.217.255
IPADDR=192.148.217.91
NETMASK=255.255.255.0
NETWORK=192.148.217.0
HWADDR=oo:24:E8:78:D7:CD
ONBOOT=yes
route returns:
Destination Gateway Genmask Use Iface
192.148.217.0 * 255.255.255.0 eth1
10.1.105.1 * 255.255.255.0 vlan326 (management)
default 10.1.105.70 0.0.0.0

Question about networking iMac and streaming video to TV

I have the 24" iMac 2.66GHz with 4 G ram. Currently using Motorola SBG900 (Docsis 2) cable modem & router to stream Comcast through house (another PC, iPhones, LG Blu Ray player/digital video streamer).
Recently acquired a Netgear Rangemax 3700 which is supposed to be the fastest current wireless router. Here are my questions:
1) Can I just use the Motorola SBG900 as modem ONLY and run the ethernet out of it to the Netgear router (thus bypassing the router built into the SBG900). Will this accelerate the streaming of video to other receivers?
2) Would I be better off with a Motorola 6120 Docsis 3 Cable modem feeding the Netgear router (even though my Comcast cable feed is Docsis 2, not 3)?
3) Since my Comcast account is rated 10 Mbps max (though it sometimes goes up to 15 or so late at night) and I believe the existing Motorola SBG90 is rated at 54 Mbps, is the limiting factor the speed of my Comcast connection and all else doesn't matter? That is, is it impossible to speed up my streaming or download speed without a faster connection to the Internet?
4) What kinds of connections are there that are faster than Comcast cable connections?
Basically, I don't want to waste money or time if I'm already at the maximum throughput available given my connection. If I can get marginal speed increases by adding new modem and router, that's fine. I'll do that.
Thanks for your help.
PS: I owned and returned the Airport Extreme Base Station. It did not increase the speed of my connection or streaming, but then it tested very poorly at www.smallnetbuilder.com -- about half the speed of the Netgear Rangemax.

Can't help with Q 1 + 2, but here are some things to consider re:
+3) Since my Comcast account is rated 10 Mbps max (though it sometimes goes up to 15 or so late at night) and I believe the existing Motorola SBG90 is rated at 54 Mbps, is the limiting factor the speed of my Comcast connection and all else doesn't matter? That is, is it impossible to speed up my streaming or download speed without a faster connection to the Internet?+
My Comcast account is rated 15 Mbps and I never get that. I've done everything I can here including Cat 6 cables (instead of Cat 5), but the major problem/hangup in my case is: Comcast is using 20-year old buried cables from their hub (approx. 10 mi across town) to the neighborhoods here - those cables are "leftovers" from the company Comcast purchased the rights from. So, we not only have old cables, but the little boxes all over the neighborhood feed at least 6 - 10 homes each, so you are sharing the available bandwidth with the neighbors. And, whenever everyone seems to be online at the same time, my downloads slow down to a c r a w l (as slow or slower than dialup occasionally!).
So, unless you have a better/newer cable setup where you are, you need to keep that in mind; in that case, no matter what you do, you are at the mercy of Comcast's equipment and your neighbors' usage.
4) The only one I know of is FioS (fiber optic).

Question on Network and Host Blocking feature of IDSM

Hi there,
Is the IDSM capable of blocking host and network by itself through manual blocking. Or is it just capable of sending the blocks to its managed devices. Thanks

There is a confusion in terms.
Blocking refers to the sensor's ability to create ACLs or Shun lists on other devices.
It requires that you setup the sensor to connect to that other device.
Denying on the other hand refers to the sensor's ability to be deployed InLine and for the sensor itself to drop the offending packets.
The Host Blocking panel is only for the Blocking feature. The Host Blocking panel does not control what an InLine Sensor will "Deny".
At this time the sensor does not support the user manually adding IP Addresses to the sensor's Denied Attacker list.
User's may view the current list, clear counters for the list, or remove attacker ip addresses from the list. But may not manually add addresses to the list.
Addresses are added to the Denied Attacker list Only when signatures are triggered with one of the deny-attacker-.... event actions.
You can view the Denied Attacker List through IDM:
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/csids/csids13/idmguide/dmmntr.htm#wp1029926
The Deny Actions do require that the sensor be deployed InLine and will not work on sensor's deployed Promiscuously.

Question about network statement in OSPF and BGP

The network statements in OSPF and BGP can be used to advertise networks. But I'm not clear under what circumstances would make more sense to use network statements to advertise a network than by using other methods to have the network learned by other routers.
Here is an example: assume I'm running BGP on router A. I want to advertise network 10.1.1.0/24 to other BGP peers. I have a OSPF route for this network. I can do 2 things: one is to use "network 10.1.1.0 mask 255.255.255.0", the other is to do "redistribute OSPF ... route-map OSPF-INTO-BGP", and create a prefix list to permit 10.1.1.0/24.
Both would work to have this network learned by other BGP peers. But which is better for what purpose?
Thanks a lot
Gary

Hi Gary,
There is one little difference between the use of the two approaches - the route injected into BGP by using a network statement will carry an Origin attribute of IGP, whereas the route injected using redistribution will have an Origin attribute of Incomplete. Now, that is not a huge issue since you can always change that whatever value you desire both with the use of the network statement and redistribution. The important thing, however, is that in the BGP best path selection process, the Origin attribute comparison is fairly high up and will prefer a route with the attribute of IGP.
Apart from that, there is absolutely no difference between using the network statement and using redistribution with a route-map that matches exactly on the same route that you would have specified with the network statement.
I guess one advantage of using the redistribute approach is that it does not clutter up the BGP config. If you wish to add more routes, you simply add them to the prefix list so that you don't really touch the BGP config portion at all..
Hope that helps - pls do remember to rate posts that help.
Paresh

Question about network w/two routers

I am trying to setup a network that covers both my home and detached garage home office. The garage office is approximately 100 feet away from the home. Internet access is delivered to the garage office. The cable modem is connected to a wired router with four switched ports. A cable from one of the switched ports extends through an underground conduit into the home where it attaches to the internet port of a Linksys WRT160N wireless router. I can access the internet from the garage and within the home, but I CANNOT browse from the home network to the garage network.
How can I configure the Linksys WRT160N so that I can access the internet from both locations AND browse from one network to the other?
Thanks,
Mike208

With this setup.

Question about networking

So I've gotten placed into the role of UCS manager having only a basic understanding of upkeep (currently taking training). I've noticed some things that I'm curious about but don't know where I should look for more information.
For one. We were orinigally using port channels to do networking when we had a 1g connection to the core from the FI, now that we're 10g my network team told me that we wouldn't do port channel anymore and what I've got currently setup is 3 connections marked network and 1 connection marked unified uplink 2 Network in FI B and 1 Unified Uplink and 1 network in FI A.
This seems very incorrect to me but I also can't seem to set the unified uplink port back to a network port (I don't see that as a configure choice).
If anyone has some good info on what I really need to be looking at that'll be great but if you've run into a similar issue that would be awesome.
Thanks

Sean,
Doing a deeper research in our data base I found that this has no problems and actually is saying that it works as uplink port for FCoE and Ethernet at the same time and it should show up under the LAN and SAN tab as uplink ports.
We set the role of the port to either "Network", "FCoEUplink" or "UnifiedUplink" based on whehter the port is used as an ethernet uplink, fcoe uplink or both.
If you go to the LAN/SAN tab and check the interface you should be able to see the interface as uplink for both as these are Unified Ports that can be FC or Eth ports.
Can you try to unconfigure the port from the "Equipment" tab? the LAN/SAN tabs will only let you delete/disable the interface, and then just configure it as LAN OR SAN uplink?
Let me know what happens.
Rate ALL helpful answers.
-Kenny

DataGuard question - overcoming network latency problem

Hi
Dataguard for 10.2.0.4
Assuming we have a latency problem with the network between the primary and secondary databases in a dataguard configuration.
That means that my bottleneck is currently the network that cannot accommodate the amount of redo that is generated per second by the primary, and archive logs are accumulating on the primary site
Is there a way to configure the redo transport on the primary to transfer the archive logs in parallel – in case there is an accumulation of archive logs waiting to be shipped
I am talking parallel transfer to the same site , not to different sites – just to overcome the network bottleneck
Thanks in advance
Orna

Hi Sybrand,
Quoting from the doc
'Oracle Database 10g Release 2 introduces the ability to have multiple ARCn processes sending redo for a single archived-redo log over the network, reducing the time required to ship a single archive log to a remote destination. In previous Oracle Database releases, only one ARCn process at a time could archive redo from a given log file. The maximum number of network connections that will be used in parallel to perform archival to a destination is controlled using the MAX_CONNECTIONS attribute of the LOG_ARCHIVE_DEST_n initialization parameter. The LOG_ARCHIVE_MAX_PROCESSES initialization parameter can be set as high as 30, (the previous maximum was 10)'
My 'back of a cigarette packet' calculation was not meant to be exact just meant to illustrate a point :-)
I still think your confusing bandwidth with latency but I don't want to poke an angry response :-)
Cheers,
Harry
Edited by: Harry on Jul 10, 2009 3:33 PM - seems the language filter doesn;t like my British slang. Changed to cigarette......

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