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by rmichael
Tue Apr 01, 2014 5:14 pm
Forum: Wireless Networking
Topic: Sometimes high latency in wireless network
Replies: 13
Views: 3143

Re: Sometimes high latency in wireless network

Change disconnect-timeout to 1s, hardware retries to 2 and watch for stations that disconnect - those are the ones causing latency (by making AP retransmit for a long time). It could also be ROS bug - which version are you running? I check bitrates and change disconnect-timeout and hwretries - it's...
by rmichael
Mon Mar 31, 2014 7:08 pm
Forum: Wireless Networking
Topic: I have a kind of stupid antenna question.
Replies: 6
Views: 2008

Re: I have a kind of stupid antenna question.

You are going to loose sensitivity and 3dBi of gain when using only one antenna on a MIMO radio. To change it to single antenna you'll need to disable chain that is not connected to the antenna. That said, if you're deploying in a city than you really want MIMO as multipath interference will either ...
by rmichael
Thu Mar 27, 2014 11:11 pm
Forum: Wireless Networking
Topic: For Wireless Experts
Replies: 13
Views: 2303

Re: For Wireless Experts

Consider SXT HG (can provide power PoE for OM2P-HS) for back-haul together with OM2P-HS (open-mesh) unit. Use additional OM2P-HS units as wireless up-links.
by rmichael
Wed Mar 26, 2014 8:06 pm
Forum: Wireless Networking
Topic: I have a kind of stupid antenna question.
Replies: 6
Views: 2008

Re: I have a kind of stupid antenna question.

Keep in mind that antenna coverage must overlap for MIMO to work so sector antennas may not be what you need.
by rmichael
Wed Mar 26, 2014 7:52 pm
Forum: Wireless Networking
Topic: For Wireless Experts
Replies: 13
Views: 2303

Re: For Wireless Experts

Hello Guys, I have been doing lots of research about antennas and radios. I am a MT guy and want to stick with MT but I have found some other equipment that have some claims that makes me wonder. What I am building is a City Wide Hotspot. There will be no CPE involved but the smartphones and laptop...
by rmichael
Wed Mar 26, 2014 3:28 pm
Forum: Wireless Networking
Topic: Custom Layer 2 Protocol for 2000+km range
Replies: 3
Views: 940

Re: Custom Layer 2 Protocol for 2000+km range

Sounds like a job for nstreme. Use dual radio one for transmit and second for receive.
by rmichael
Wed Mar 26, 2014 3:21 pm
Forum: Wireless Networking
Topic: Sometimes high latency in wireless network
Replies: 13
Views: 3143

Re: Sometimes high latency in wireless network

Change disconnect-timeout to 1s, hardware retries to 2 and watch for stations that disconnect - those are the ones causing latency (by making AP retransmit for a long time). It could also be ROS bug - which version are you running?
by rmichael
Tue Mar 25, 2014 4:20 pm
Forum: General
Topic: attack
Replies: 7
Views: 1105

Re: attack

You can setup port knock routine which would open ssh port only if port knock is correct.

http://wiki.mikrotik.com/wiki/Port_Knocking
by rmichael
Mon Mar 24, 2014 3:21 pm
Forum: Wireless Networking
Topic: Which ROS version would you recommend for WDS over nv2?
Replies: 4
Views: 950

Re: Which ROS version would you recommend for WDS over nv2?

So I switched to station-bridge and I did notice longer uptime for wireless connections and quicker reconnect (I did not test performance however). I use 2.39 firmware with 5.9 ROS for stations and 5.14 for AP btw.
by rmichael
Fri Mar 21, 2014 12:32 am
Forum: RouterBOARD hardware
Topic: 450G vs 2011UiAS-IN/RM
Replies: 12
Views: 5302

Re: 450G vs 2011UiAS-IN/RM

@NathanA
Which ROS version are you using with MetaRouter?
by rmichael
Thu Mar 20, 2014 10:03 pm
Forum: RouterBOARD hardware
Topic: Low-cost RB1100AHx2-LM version with 512MB RAM, only $339!
Replies: 1
Views: 1882

Re: Low-cost RB1100AHx2-LM version with 512MB RAM, only $339

What the hell is this? RB1100AHx2 is $349 but have 2 GB RAM. Does 1.5 GB RAM worth difference of only $10 ? Is that fault or fail? +1 In addition it has P202ASSE2KFB CPU, for which I cannot find spec sheet for, and is 66Mhz slower than RB1100AHx2 EDIT: from what gather original RB1100AHx2 will be d...
by rmichael
Tue Mar 18, 2014 6:30 pm
Forum: Wireless Networking
Topic: Which ROS version would you recommend for WDS over nv2?
Replies: 4
Views: 950

Re: Which ROS version would you recommend for WDS over nv2?

you can use station-bridge instead of station-wds. I would recommend to use RouterOS v6.10. Could you explain why station-bridge? From manual, describing station-bridge: This mode is safe to use for L2 bridging and should be used whenever there are sufficient reasons to not use station-wds mode.
by rmichael
Tue Mar 18, 2014 5:53 pm
Forum: Wireless Networking
Topic: Which ROS version would you recommend for WDS over nv2?
Replies: 4
Views: 950

Which ROS version would you recommend for WDS over nv2?

I'm interested what ROS versions are being considered stable for WDS and nv2. Please post your experience.
by rmichael
Wed Jan 23, 2013 3:31 am
Forum: RouterOS v6 RC and v7 BETA
Topic: Winbox for android, when?
Replies: 52
Views: 48256

Re: Winbox for android, when?

Sorry but it is still not clear how Webfig is different from Winbox, if we are talking about Android. The only real difference is MAC connecivity, and that doesn't apply to phones anyway. So you already have Winbox for Android Real differences: MAC Telnet Save passwords and IPs... Access port is no...
by rmichael
Wed Jan 23, 2013 3:30 am
Forum: General
Topic: PCI-DSS/Security Risk Assessment/Gap Analysis
Replies: 4
Views: 1646

Re: PCI-DSS/Security Risk Assessment/Gap Analysis

To answer your question, elevation of privileges, although nice, is not a PCI requirement so I think your QSA is smoking something :). Using Radius for AAA should be sufficient. Myself I don't use mikotik in such environment due to number of things: - Unstable ROS versions. PCI compliancy requires t...
by rmichael
Fri Jan 11, 2013 11:12 pm
Forum: General
Topic: MikroTik why not turn to new Cisco/Juniper?
Replies: 33
Views: 8708

Re: MikroTik why not turn to new Cisco/Juniper?

when you have restricted environment and that is working for you - it is fine, when you grow out of it you have a problem. Either you have to upgrade using technology from your current provider or you have to go to new equipment provider. As far as RouterOS goes - you can get basic device that has ...
by rmichael
Fri Jan 11, 2013 2:43 am
Forum: General
Topic: MikroTik why not turn to new Cisco/Juniper?
Replies: 33
Views: 8708

Re: MikroTik why not turn to new Cisco/Juniper?

If you have a product but no customers, then you will fail, whereas Mikrotik seems to have customers who want way more than company can offer. You might get a better understanding of their approach after watching the interview with Arnis Riekstins. It is an "I do it my way" approach and it's been s...
by rmichael
Thu Jan 10, 2013 7:27 pm
Forum: RouterBOARD hardware
Topic: 2011UAS-2HnD-IN USB Port for APC UPS Monitoring...
Replies: 12
Views: 4706

Re: 2011UAS-2HnD-IN USB Port for APC UPS Monitoring...

@rmichael Above is an opinion/speculation and not an official MT position. My name is not market red. Under my name you will see the status called "member" and not "MikroTik support" Under this is you will see non MikroTik logo. For sure it is speculation, what else should it be, perhaps they will ...
by rmichael
Thu Jan 10, 2013 6:26 pm
Forum: RouterBOARD hardware
Topic: 2011UAS-2HnD-IN USB Port for APC UPS Monitoring...
Replies: 12
Views: 4706

Re: 2011UAS-2HnD-IN USB Port for APC UPS Monitoring...

So ask your self what you want to do if this is your company? Perhaps I am false with this, but I prefer to be realistic. Above is an opinion/speculation and not an official MT position. To the OP - thanks for posting and making us aware of the issue. It would also be helpful to know exact APC mode...
by rmichael
Tue Jan 08, 2013 5:53 pm
Forum: General
Topic: RB2011 Routing speed
Replies: 13
Views: 5256

Re: RB2011 Routing speed

no one gives an opionion?

A switch chip at 100mb of 5 ports, whouls do 5x100 FD of switched traffic, or not?
Yes, minus 25% ethernet MAC overhead.
by rmichael
Mon Jan 07, 2013 7:59 pm
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

I am about to order one but I had question about port/cpu. The router I am contemplating replacing currently only has ports in use. Wan/Lan, the lan port terminates 20 or so vlans in the building (router on a stick type config) with 1 vlan going to ospf distribution routers for other buildings. Fro...
by rmichael
Mon Jan 07, 2013 5:07 am
Forum: General
Topic: Mikrotik propitiatory solution for FTTx
Replies: 11
Views: 5082

Re: Mikrotik propitiatory solution for FTTx

Your cost calculations do not include any solution for encryption for your endpoints.
by rmichael
Mon Jan 07, 2013 3:44 am
Forum: General
Topic: MikroTik why not turn to new Cisco/Juniper?
Replies: 33
Views: 8708

Re: MikroTik why not turn to new Cisco/Juniper?

The truth is that MT is to cheap. They need to charge more for the software (plus certain features should be additional charge) to fund better development and testing. If they don't do it now - they never will as their market share will only be shrinking.
by rmichael
Mon Jan 07, 2013 3:31 am
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

I am about to order one but I had question about port/cpu. The router I am contemplating replacing currently only has ports in use. Wan/Lan, the lan port terminates 20 or so vlans in the building (router on a stick type config) with 1 vlan going to ospf distribution routers for other buildings. Fro...
by rmichael
Sat Jan 05, 2013 2:17 am
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

We currently run an x86 based RouterOS systems for our core routers. They were all custom built systems, and we are looking to upgrade for various reasons. We want to make sure that whatever we install are at least as powerful. Currently the systems are Intel Core 2 Duo E8400 based, with 2GB of ram...
by rmichael
Fri Jan 04, 2013 8:26 pm
Forum: RouterOS v7
Topic: v6 rc6 released
Replies: 215
Views: 60023

Re: v6 rc6 released

I'm sorry about that, we have specifically indicated that this must be clarified, but we can't control it 100%. It doesn't bother me so much anymore. I have the device up and running. Maybe you need to clarify to the distributors in future and mark the boxes so there is no way for the distributors ...
by rmichael
Fri Jan 04, 2013 7:14 am
Forum: RouterOS v7
Topic: v6 rc6 released
Replies: 215
Views: 60023

Re: v6 rc6 released

For my way of thinking/approach this CCR "pre-production" is just ideal - you can get only one piece for the lab, just to start experimenting, working with support to get all the necessary stuff working, understanding how much performance you will get and where to put this device when availability ...
by rmichael
Thu Jan 03, 2013 9:20 pm
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

Been playing with my CCR today, and hit a snag..... Why on earth do we only have a Max MTU of 6130? I run my core at 9000 generally, so the idea of using these in the core one day is completely kiboshed. Earlier Routerboards have had MTU of 9000+ for some time, why the change of heart.... Secondly,...
by rmichael
Fri Dec 14, 2012 2:15 am
Forum: RouterBOARD hardware
Topic: Cloud Core Router pps limit on each port?
Replies: 4
Views: 1948

Re: Cloud Core Router pps limit on each port?

I think it's a valid question, no matter what cumulative maximum pps is: Is CCR able to handle maximum possible frame rate (1 488 095*2) on a 1Gb interface? EDIT: And the answer appears to be Yes...for a router with firewall with 25 rules: http://forum.mikrotik.com/viewtopic.php?f=0&t=67195&p=346775...
by rmichael
Fri Nov 30, 2012 5:25 am
Forum: General
Topic: Logging firewall changes
Replies: 3
Views: 514

Re: Logging firewall changes

Better logging would be a big plus, for PCI compliancy and security in general.
by rmichael
Fri Nov 30, 2012 5:22 am
Forum: Wireless Networking
Topic: Wall Jack APs
Replies: 18
Views: 3176

Re: Wall Jack APs

you don't need a ZD for basic functionality with the wall plates. A ZD only makes your life easier, but that's OT in this post. If you don't use ZD than you loose your claim for Ruckus to be "easy to manage" and "robust". Frankly I don't know of anyone who is using Ruckus w/o ZD for installs with m...
by rmichael
Fri Nov 30, 2012 5:04 am
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

@hozmax How many peoples you know at this time (today) who is owning a router from the ccr series? And know tell me who is able to compare this machines for you with an exactly clone of your pc based router? The i7 6core (HT with 12)max CPU load 42%. Simple Queues 1200, L7, 350Mbit / s, this will t...
by rmichael
Thu Nov 29, 2012 11:11 pm
Forum: Wireless Networking
Topic: Wall Jack APs
Replies: 18
Views: 3176

Re: Wall Jack APs

I vote for Ruckus units. Mikrotik's lack of antenna diversity, auto channel coordination and auto tx power adjustments, combined with a lack of centralised control (dude is a monitor, and full of bugs), make MT a very bad choice when you need to manage hundreds of APs. Stick them in a wall plate an...
by rmichael
Thu Nov 29, 2012 10:11 pm
Forum: Wireless Networking
Topic: Wall Jack APs
Replies: 18
Views: 3176

Re: Wall Jack APs

Agreed! And what wireless issues have you been having with Mikrotik? If you know how to configure them properly, they are some of the most reliable access points you can buy. Of course! I must of assumed the 2,000+ Mikrotik radio's we've installed, combined with our complete lack of knowledge of Mi...
by rmichael
Thu Nov 15, 2012 5:34 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: Double QoS for v6 is possible
Replies: 71
Views: 44098

Re: Double QoS for v6 is possible

What's the reason for having SQ and QTree on INPUT? DDoS? VPN Tunnel shaping?

Also, what does it mean that PCQ is NAT aware? Is it so the pre src-NAT IP is used as source IP to classify a stream?
by rmichael
Wed Nov 14, 2012 5:24 pm
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 995233

Re: CLOUD CORE ROUTER

How come 16 core CCR can do up to 1.5mpps and 32 core up to 8mpps?

Also, if CCRs can do 24mpps or 17.8mpps why don't you quote up to 32Gbps or 24Gbps throughput respectively? Is there a limitation that does not allow each port transmit at 2Gbps?
by rmichael
Mon Oct 29, 2012 3:41 am
Forum: RouterOS v7
Topic: v6 RC2 released
Replies: 98
Views: 28278

Re: v6 RC2 released

NV2 P2MP finally does not disconnect. I thought that it never will. It took two years of release discourage many people forever Have you tested latency on your links. In my tests new versions of NV2 traded disconnects for extremely high latencies and lower bandwidth. I much prefer 1 sec disconnects...
by rmichael
Sat Oct 27, 2012 4:07 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: equations that describe packets - A Bandwidth Breakthrough
Replies: 2
Views: 1484

Re: equations that describe packets - A Bandwidth Breakthrou

links from the comments from the original site: http://www.mit.edu/~medard/papers2011/Modeling%20Network%20Coded%20TCP.pdf http://arxiv.org/pdf/1203.2841.pdf http://dandelion-patch.mit.edu/people/medard/papers2011/Network%20CodingMeets%20TCP-%20Theory%20and%20Implementation.pdf Finally this method ...
by rmichael
Fri Oct 26, 2012 2:45 pm
Forum: Wireless Networking
Topic: Which Wireless to choose
Replies: 4
Views: 875

Re: Which Wireless to choose

you can go with either of them, nstreme and nv2 is going to be faster than vanilla 802.11, and if you are using only RouterOS wifi clients, that is good option to choose.

the fastest of all three would be NV2 in normal conditions.
What are normal conditions?
by rmichael
Fri Oct 26, 2012 2:28 pm
Forum: RouterOS v7
Topic: v6 RC2 released
Replies: 98
Views: 28278

Re: v6 RC2 released

NV2 P2MP finally does not disconnect. I thought that it never will. It took two years of release discourage many people forever Have you tested latency on your links. In my tests new versions of NV2 traded disconnects for extremely high latencies and lower bandwidth. I much prefer 1 sec disconnects...
by rmichael
Thu Oct 25, 2012 7:41 pm
Forum: Wireless Networking
Topic: 300 vehicles in one place
Replies: 5
Views: 1004

Re: 300 vehicles in one place

There are other vendors than Mikrotik that are more suitable for your scenario.
by rmichael
Wed Oct 24, 2012 4:10 pm
Forum: General
Topic: what happens when PCQ is assigned to interface?
Replies: 0
Views: 310

what happens when PCQ is assigned to interface?

I tried this test: rate-limit=1M pcq-src-address-mask=16 (for clients on class C subnet) My expectation was that traffic on that interface should be limited to 1M (since all clients are on the same subnet) but it was not limited at all. It appears that some PCQ features don't work when assigned to i...
by rmichael
Wed Oct 24, 2012 4:01 pm
Forum: General
Topic: Ros 5.21 problem...
Replies: 10
Views: 1780

Re: Ros 5.21 problem...

The only beta I've used was 6.0rc1 and it was working without problems, it is official stable 5.21 that introduced problems. And Yes :) i've got some kind of test zone routerboards, these are connected to my place :) so i've upgraded two routerboard out of few hundreds. And some time ago I realised...
by rmichael
Wed Oct 24, 2012 3:35 am
Forum: General
Topic: frame-priority in NV2
Replies: 0
Views: 396

frame-priority in NV2

According to the manual (http://wiki.mikrotik.com/wiki/Manual:Nv2#Nv2-qos.3Dframe-priority) higher priority packets are dequeued first. PC1 - CPE ....<NV2>.... AP-PC2 PC3 / \ PC4 I'm marking packets <230 bytes priority 0 and remaining packets, that are >231 bytes, priority 0. (I also tried to revers...
by rmichael
Tue Oct 23, 2012 8:31 pm
Forum: General
Topic: Recommended hardware
Replies: 2
Views: 461

Re: Recommended hardware

Just curious what MikroTik product would be a good fit for what we are doing?? It would be one that is running version of ROS w/o the bug...Sound like your setup is triggering a bug so either update to the latest version or, if you're using the latest version, send a message with supout.rif to supp...
by rmichael
Mon Oct 22, 2012 7:09 pm
Forum: RouterBOARD hardware
Topic: strange problem with RB433
Replies: 4
Views: 893

Re: strange problem with RB433

If it happened after the upgrade, why don't you try to downgrade and see if it helps? Some on this board report problems with traffic stopping so maybe what you're experiencing is due to v5.21...
by rmichael
Sun Oct 21, 2012 11:00 pm
Forum: RouterBOARD hardware
Topic: can RB1100AHx2 support 500 clients?
Replies: 6
Views: 2425

Re: can RB1100AHx2 support 500 clients?

I have one location with 17Mbps internet link, PCC, QoS, netflow (no NAT, L7 or SMTP) and RB1100AH peaks at about 35%. I don't think it would handle 4x more traffic.
by rmichael
Sun Oct 21, 2012 7:02 pm
Forum: General
Topic: Broken SFQ
Replies: 9
Views: 1165

Re: Broken SFQ

Why would you put these types of packets into a 128 packet sized queue that gives only sfq-allot bytes of transmission on each RR cycle? Have you tough of some actually useful benefit of this? I'm reshuffling packets, not transmitting them yet. As I understand it, NV2 and nstreme decide how many pa...
by rmichael
Sat Oct 20, 2012 3:09 pm
Forum: General
Topic: Ros 5.21 problem...
Replies: 10
Views: 1780

Re: Ros 5.21 problem...

1/These reouterboards are in "production" so i won't be back to 5.21 till You solve problem. So i can't send You supout :( 2/And i REALLY need to know how to get rid of 100% cpu usage, now? Im using pppoe. Stations are connected in station-wds mode. I was pinging simultanously few of them and gap i...
by rmichael
Sat Oct 20, 2012 2:26 am
Forum: Beginner Basics
Topic: 5.21 Comments
Replies: 10
Views: 2114

Re: 5.21 Comments

I continue getting 20% more bandwidth when AP is v5.17 and CPE are V5.21 vs V5.21 on both (similar to v5.20)
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