NMH405 and QOS setting on Router to optimize network traffic

Are there settings to optimize the NMH405 on a Network.  I'm using a Westell DSL Wireless 4 port Modem/Router with QOS options.
It seems that there is a lot of lag time now when I try to move and read files to or on the NMH405.  If adjusting my router to work well with the NMH405 will help through basic or advanced funtions I'm willing to do that.  This could also help when using the SONY Playstation 3 to access music and photos.
All the best,
Thank you 

Committed Information Rate (%)   Peak Burst Size (ms)   Committed Burst Size (ms)   Max Queue Size:   Can any of these be changed to optimize the NMH405? Thank you? Latency Measurements: Latency Boundary Boundary 1: 0 ms Boundary 2: 10 ms Boundary 3: 20 ms Boundary 4: 40 ms Boundary 5: 100 ms Boundary 6: 1000 ms Boundary 7: 3000 ms  Latency Threshold (ms)   Fragmentation Settings: IP Fragmentation Enable  IP Fragment Size 100 148 244 292 340 388 436 

Similar Messages

  • Router "ignores" iMac network traffic after a short while...

    someone here might be able to help.  Here are my symptoms:
    My home network consists of Comcast broadband connected to an SMC 802.11N broadband router, which then feeds into several switches and several other wireless access points in my house to support the various dead spots (3 levels, big enough that I put in more AP's over the years.)
    I work in IT for a living.  All APs are on separate channels, and I use iStumbler to make sure I am not being stepped on by my neighbors.  I also use a radio frequency analyzer to watch for spurious emissions from cordless phones, etc.  In any event, I do not believe this is a WIRELESS issue as you will see in a moment.
    What happens is that I can get my new iMac onto my network and online with no problem...I can do this by connecting to the main SMC router wirelessly, or by connecting wirelessly to any of the other APs in the house.  I get great connection speeds (20+MBit as reported by Speedtest.net) and can surf just fine...for a while.
    What happens is that my SMC router eventually starts to "ignore" my iMac.  What I mean is that I can turn on a network sniffer and watch the communications between the iMac and the router working just fine...then all of a sudden the SMC router starts to ignore ARP requests from the iMac.  Since this main router is my gateway on the network, this means that the iMac can longer get out to the Internet.  BUT, I can still reach other local resources on my local network via the other AP's just fine.  For example, I have SMB shares on other machines on the network and if the iMac has already grabbed the MAC address for these local machines, when the router begins to ignore my iMac it can still talk to local machines just fine.  The router just 100% ignores the iMac now (pings, logins to the web admin console, ARP requests, etc).
    I can recover by dropping the wireless connection from my iMac to the non-router AP and RECONNECTING to the router's built in access point.  This is obviously not a sustainable work-around however.  I can also restart the router and recover.
    I thought that perhaps the register on my router was being over-run with traffic from my iMac and read that something like DropBox may do this.  I AM running DropBox on all my machines so removed it from my iMac...no luck.  My SMC router starts to ignore my iMac after 10 minutes or so of surfing even with no DropBox app running on my iMac.
    There are no errors in the SMC's logs that would indicate a problem, and none of my Windows/Linux machines are having any issues with this SMC router.
    Having said all that...I anticipate that the first response to this post might be, "it's your router's issue...replace that and all is well."  But I am struggling with the fact that 7+ other machines on my home network (ranging from variations of Linux to Windows 7 to Windows HomeServer) all interact with this SMC router all day long...it only starts ignoring my shiny new iMac after 10-15 minutes.
    I also have not tried to reproduce this by connecting directly to the SMC router (main gateway) to see if it happens.  Again, I am going iMac -> Wireless Access Point -> Switch -> SMC router so not sure why this would matter or not when trying to determine why the SMC router and iMac refuse to communicate after a short while (and I need to use my new iMac wirelessly anyway).
    any suggestions?
    Thanks!

    we are having the exact same symptoms where our apple products are connected, but can't access the internet.  we have the same router from Comcast.  it is an SMCWBR14S-N4. 
    we have an iphone4 and ipad2.  used to think it was something weird about the iphone, which we've had for months, and we've had this problem for months.  just got the ipad last week, and it immediately started showing the same symptoms.
    like you, we have other computers, and they don't have these issues.  we also have a panasonic viera flat screen with a 802.11n dongle.  none of these machines have an issue.
    any luck getting your problem solved?

  • Unknown network traffic / router traffic monitoring

    So I got a new PC with windows 7 on it, and I installed this gadget that monitors network traffic, and it shows a lot of traffic that my local PC isn't showing, so I am thinking there is something running on the LAN that I can't see. I was looking to find a live, better program to monitor the actiontec router, for traffic. anyone know of anything that can maybe show me who is using all the bandwidth on my network?
    i have found software for Linksys, but nothing for the Actiontec.
    Thanks,
    Quasimodem
    Fios in Florida
    Solved!
    Go to Solution.

    Keep in mind that when looking at Wireshark (sniffer) software there are different types of traffic:
    Unicast
    Broadcast
    Multicast
    Unicast is traffic between two devices.  You will see the traffic between the PC with wireshark and another device on your local network such as a printer, another PC or the Router.  You should not see traffic between another PC and the Internet for example.  Using a phone as an example some calls you and the conversation is between you and the person on the other end of the phone.  This is unicast traffic.  Using defaults of the actiontec, IP address seen will be 192.168.1.1 for the router and 192.168.1.2-99 for devices on your network.  If you have the TV service, 192.168.1.100-1xx is used for the cable boxes.
    Broadcast traffic is traffic sent to all devices.  Its not directed toward a particular PC but rather usually looking for information.  In a sniffer trace you will see broadcast traffic. Going back to the phone example, someone makes an announcement on an overhead intercom system that is broadcast traffic.  Broadcast traffic will be seen as 192.168.255.255
    Multicast traffic is traffic from one device for many devices.  Usually used in video feeds.   Using the phone system as an example someone wishes to tell a group of people something so instead of calling each person up and telling them each person who wants the information joins a conference bridge.  Anyone is allowed to listen but only those that wish to get the information receive it.  Generally how multicast works.  Multicast traffic will be seen as IP address 224.x.x.x or something of the sorts where the address will be 2xx.x.x.x.  
    I hope this makes sense.  Probably more information than you needed but at least it will help you understand what wireshark is telling you.

  • Setting Up VLAN and QoS for VOIP on SG200-18

    We recently purchased the SG200-18 smart switch to replace a Netgear unmanaged switch. We're moving our phone service to VOIP through our local ISP as well. 
    I've currently got the VOIP phone plugged into Port 17 on the SG200-18 (it's a Grandstream cordless VOIP phone).
    I want to put the VOIP phone on a separate VLAN from the rest of the network and optimize the QoS settings so that the VOIP phone has exceptional audio quality even during intense network traffic.
    Here's my questions:
    1. Do I need to adjust anything on the type of port for Port 17 (since it looks like some form of Combo port)?
    2. How do I go about isolating the VOIP phone on it's own VLAN (I'm seeing VLAN and Voice VLAN settings, not sure which one to use; I tried setting a VLAN and broke Internet connectivity to the phone until I went in and removed it)?
    3. Do I need to adjust any QoS settings on the switch to better optimize the VOIP phone?
    A couple of additional questions about the GS200-18 in general:
    1. Do I need to adjust any of the System Time Settings on the switch? I'm in Central Time.
    2. Do I need to adjust any of the Green Ethernet/Energy Saving settings or should I stick with the defaults?
    Also, a couple of "getting started" side questions to Cisco:
    1. I've registered a My Cisco account. What do I need to do to register my switch with Cisco and associate it with my My Cisco account?
    2. What are the benefits of taking out a Cisco Small Business Support Contract, and about how much would it cost on the SG200-18 (I ordered it from Provantage)? I'm curious to see if it's worth the money.
    Here's my "specs":
    Switch: SG200-18
    VOIP phone: Grandstream DP715 and 710 expandable handsets
    Plugged into: Port 17 on the SG200-18
    ISP: Local ISP (Direclynx)
    Connection type: 3M down/500k up DSL, moving to a wireless connection coming up which will give us faster speeds
    VOIP backend provider: VOIP Innovations
    Router: Apple Airport Extreme AC model (I run all Macs and iOS devices and OS X Server on the network, so using the Apple router makes setup easier, since it doesn't QoS, trying to QoS and VLAN at the switch level)
    Thanks everyone!

    Hello,
    Lots of different questions here so I'll try to make sure I don't miss anything.
    1. Do I need to adjust anything on the type of port for Port 17 (since it looks like some form of Combo port)?
       The way the combo ports work is you can either use the SFP slot for a fiber connection or the copper ethernet port, but not both at the same time.  Other then that they just function as normal network ports.
    2. How do I go about isolating the VOIP phone on it's own VLAN (I'm seeing VLAN and Voice VLAN settings, not sure which one to use; I tried setting a VLAN and broke Internet connectivity to the phone until I went in and removed it)?
       It sounds like you created the VLAN correctly and assigned the phone, however there wasn't anything doing any routing for that VLAN.  You would need to have a VLAN capable router or a layer 3 switch so that something would act as the default gateway for the voice VLAN and route the traffic for you.  Since there was nothing like this your phone lost it's connectivity to the internet when you placed it in the new VLAN.  I don't think the Airport is VLAN capable, but we will come back to that.
    3. Do I need to adjust any QoS settings on the switch to better optimize the VOIP phone?
       Once you have a seperate VLAN setup for the phone properly you only have to tell the switch what your Auto Voice VLAN is going to be and it will automatically apply recommended QoS settings for the Voice VLAN and prioritize the voice traffic.  There are ways to do this manually and even with the phone in the same VLAN however the are considerably more complicated.
    1. Do I need to adjust any of the System Time Settings on the switch? I'm in Central Time.
       The system time isn't always very important.  You can set the correct time zone, however you should know the switch does not have a battery in it to keep track of time, so if/when it reboots or loses power the clock will reset.  If you would like the switch to maintain accurate time you should setup an NTP server so the time is automatically updated from the internet.  The switch will keep your timezone settings once you save them.  Time is mostly important for logging and things like that, so you can configure it if you like but it is not necessary.
    2. Do I need to adjust any of the Green Ethernet/Energy Saving settings or should I stick with the defaults?
       Green ethernet simply reduces the power usage of the switch slightly, so unless you are having odd issues where ports are disconnecting, I would just leave them at the defaults.
    1. I've registered a My Cisco account. What do I need to do to register my switch with Cisco and associate it with my My Cisco account?
       There isn't really a way to associate your Small Business devices with your Cisco account.  If you ever call in for technical support we will use your Cisco account and your serial number to create a support case, but even then they aren't linked together.  If you decide to buy a support contract, that will be linked to your switch's S/N and your Cisco ID, so in a way that would associate them together.  Devices being associated with Cisco accounts is something more common with Enterprise equipment, and mainly has to do with technical support cases.
    2. What are the benefits of taking out a Cisco Small Business Support Contract, and about how much would it cost on the SG200-18 (I ordered it from Provantage)? I'm curious to see if it's worth the money.
       There are a few advantages to a Support Contact.  Your switch comes with a Limited Lifetime warranty that includes 1 year of technical support and return to factory hardware.  With a service contract you get 3 years of technical support and next business day Advanced Replacement of the switch if it need to be replaced.  I just did a quick google search, and it looks like a contract (part #CON-SBS-SVC2) costs about $50.
    So there are a few other things to consider however.
    As a frame of reference the average VOIP call uses about 64 - 128 kbps max.
    Since you don't have a VLAN capable router or a layer 3 switch, a separate voice VLAN may not be an option.   You also mention that the Apple Airport does not do QoS, meaning we will only be prioritizing the voice traffic while it is on the switch.  When it is passed off to the Airport to be routed out to the internet all of the QoS settings will be lost, and normal network traffic will get the same priority as voice, since that is all up to the Airport.
    With one phone the hassle of getting more equipment and setting up advanced QoS isn't really worth it, especially if the link to the internet isn't going to be participating in QoS.
    One last thing I wanted to mention is you are switching to a wireless internet connection.  I would ask them how their latency and jitter is, as these two network statistics greatly effect voice quality, and usually wireless performs worse when it comes to voice traffic.
    I hope this information helps, if you have any more questions just let me know.
    Thank you for choosing Cisco,
    Christopher Ebert - Network Support Engineer 
    Cisco Small Business Support Center

  • Configuring QoS for FIOS Router MI-424WR: Traffic Priority and Shaping

    Please only read on if you are an experienced internet user familiar with setting the advanced QoS and Firewall settings for the MI-424WR and make use of wireless adaptors from a PC to provide connectivity.
    This is my first post and my first week since I moved from Time Warner Cable over to FIOS for iNet (plus HDTV and phone).     While all my services work, the router as delivered and setup is not optimum for internet quality of service.  Instead it was probably out of the box optimized for HDTV and telephone to satisfy most customers and reduce support overhead.   The average FIOS consumer is multimedia sensitive, but that is not so in my genre of internet consumer.   Here in lies the core of my reason for seeking help from like minded and experienced users in this community.
    One of the main driving forces in my switching to FIOS was to improve my multiplayer gaming experience where ultra low ping latency and high upload data rates dramatically affect the quality of connection and thus gameplay.    The cable internet service from TimeWarner was providing solid 2MB/1MB down/up data rates with no issues like what Im having now with FIOS.   Again the reason for the switch was both financial and in hope of gaining better data rates and quality of service.   Now with FIOS Im getting about 24/15 down/up data rate on the Extreme FIOS 25/25 plan when measured from my house to Los Angeles server (50 miles away) via Speedtest.net or DslReports.com/tests.     Latency wise, the ping has gone down from 150 to 50ms when measured to my friends who I connect to online that are on the East coast.   The data rate and latency has greatly improved in going from Cable to FIOS.   So far, so good.
    Where the problem shows up now, is that now I get an internet "hiccup" every 5-10 minutes that lasts about 1/2 to 2 seconds.   For the average internet user that just streams multimedia or cruises on the net; this is probably undetectable or noticed.   I never had this problem over the same PCs connected wirelessly to my DLINK DGL-4500 Gaming Router when my ISP was TimeWarner's cable service.    Now, using the FIOS and MI-424WR router with everythings being the same; Im experiencing this degregation in quality of service.    Even putting the PC's IP into the DMZ doesnt make any difference, so it is not related to port forwarding.    The issue is squarely in the lap of FIOS and this router as delivered and configured.    This is where the "game" is a foot, and where I need expertise in an area Im new to. 
    I am not new to being hands on with inet trouble shooting asI have been setting up my own home network (I work from home over VPN to work) for decades;  I would like to leverage the skills of those who are experts in the area that I think can address this issue.   That being QoS and the other device class mechanisms of this router.   Its my guess that this periodic hiccup can be minimized and even eliminated using these advanced features of this all-in-one TV/iNet/Tele router.   
    With that context being laid down, this hiccup doesnt show up if:
    a.  I connect two PCs connected to the same ethernet hub of the MI-424WR (traffic just over the LAN and not WAN)
    b.  When I was on Cable with my own gaming router wirelessly DHCP connected to my PC and using port forwarding or using the DMZ.  
    The hiccup does exist when:
    a.  Going from internet through the MI-424WR to the wireless DHCP connected PC with port forwarding
    b.  Even putting the wireless DHCP connected PC into the MI-424WR's DMZ has no effect
    I did read the manual and tried some QoS pritority and shaping and managed to reduce how often the hiccup occured, but I was just making guesses at the settings.   I put in the IP for the PCs I use for my gaming applications (which are very ping and jitter sensitive) into the QoS priority (value 7) and shaping GUI.    Im hoping someone with experience can tell me exactly how to use it and what settings to input.   Im not clear on the device and connection types offered in the QoS menus. 
    Another thing, is I couldnt find settings for the turning on/off the ICMP echo.   But I assume this is on because it can be pinged by folks on the net to my WAN IP.
    Here is the manual for the Verizon provided M424WR router (Current Version of firmware: 20.10.7)
    download link
    Here are the QoS traffic priority and shaping values Ive been experimenting with:
    Click to view QoS Traffic Priority
    Click to view QoS Traffic Shaping
    And why it matters to have a solid and stable inet connection for internet gaming?  The hiccup causes slewing or jitter which equates to positional errors in the 3D world that ruins the smooth gameplay that is needed for high end gaming.
    Heres a snapshot of me flying the wing of another flight simmer who is on the East coast and me on the West coast.
    Click to view
    Thank you in advance.
    Thomas "AV8R"
    MSEE

    TMAS wrote:
    the router as delivered and setup is not optimum for internet quality of service.  Instead it was probably out of the box optimized for HDTV and telephone to satisfy most customers and reduce support overhead.  
    That's not accurate.  VZ telephone service does not go through the Actiontec.  Also, there are no default settings for QOS in the Actiontec since QOS is rarely needed with FIOS upload speeds.
    TMAS wrote:I get an internet "hiccup" every 5-10 minutes that lasts about 1/2 to 2 seconds.  
       You should not be experiencing periodic "hiccups".  Something is clearly amiss.
    TMAS wrote:
    With that context being laid down, this hiccup doesnt show up if:a.  I connect two PCs connected to the same ethernet hub of the MI-424WR (traffic just over the LAN and not WAN)
    The hiccup does exist when:
    a.  Going from internet through the MI-424WR to the wireless DHCP connected PC with port forwarding
    b.  Even putting the wireless DHCP connected PC into the MI-424WR's DMZ has no effect
    Lets see.  The issue shows up on a wireless connection, but not a wired connection.  You think this is a QOS issue and not a wireless issue why?  Have you tried changing the wireless channel?  It very possible you have neighbors on the same channel.  Is the DGL-4500 wireless still on?  Could that be interfering?TMAS wrote:
    Another thing, is I couldnt find settings for the turning on/off the ICMP echo.  
    The settting to enable/disable ICMP echo is on the Firewall/Remote Administration page.
    TMAS wrote:
    Here are the QoS traffic priority and shaping values Ive been experimenting with:Click to view QoS Traffic Priority
    Click to view QoS Traffic Shaping 
    The traffic proirity settings you linked are applied only to your wireless connections.  QOS between the router and your wireless PC will only serve to prioritize traffic between the router and that PC and have no affect on your internet traffic.  Assuming you are not running browsers, VOIP and other traffic from that PC while you're gaming, then that will not accomplish anything.  i.e.  You're giving your only traffic highest priority, but that traffic is not competing with anything (except other nearby wireless connections on the same channel).
    On the traffic shaping screenshot, you have broadband ethernet checked, but according to your other thread, your WAN connection is Broadband Coax, not Broadband ethernet.

  • I have an wireless printer and a new wifi router. I have set the printer and iPhone / iPad correctly to the new router but when i try to print it won't recognise the air printer. Help. All was working fine on my old router

    I Have a new wifi router and have set up my iPad / iPhone and wireless printer correctly  to the new router but I can't print from the iPad and iPhone. It keeps saying ' no AirPrint printer found'. Help please!

    Start with the most basic thing that you can try. Unplug the router from power for about 30 seconds, and restart the printer and the iPad and plug the router back into power.

  • Need help setting up QOS on N900 router with PS4

    Hello all, I am looking to use the QOS settings on the N900 to secure my connection for gaming on PS4. I followed the indications in the link below, but instead of doing port forwarding, i enabled the QOS settings on all the ports used by the PS4. Is that how its supposed to work? Should i only do port forwarding to get my desired results?  Here are the instructions i followed: http://portforward.com/networking/static-ip-ps4/ Any help will be greatly appreciated!

    Hello mr Trancer, Thanks for taking the time to reply to my query, but i would dare say that this does not answer it however. I very well understand that port forwarding and QOS are different things. My question is: why is it that connection still fluctuates when i create a static IP on my PS4, then apply the QOS parameters to all the ports that the PS4 uses on that IP adress. I am not a wizz when it comes to that sort of thing, but those instructions are pretty clear, and the N900 router should be good enough to do it, so why doesnt it work? My internet connection speed is 30mbps and i have done the speed tests on those websites and they confirm im getting what i pay for, so this should work yet it doesnt. Any thoughts?

  • My airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW.

    my airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW. If we don't have a solution for this question, can i set my AE to use the IP TV and how??? I'm using a 4th Airport extreme

    No, not unless it is simply a network connection.
    How is your IPTV being provided.. if it is using a separate vlan or separate vpi/vci in the adsl connection. Who is your ISP?
    Is the TP-Link ADSL?
    Is the IPTV using a separate voice channel on adsl?
    Or a different vlan.
    Sorry but it is something where a definite answer is not possible unless you provide all the details.
    The setups are unique to each ISP around the world..
    Here is one for our local ISP.
    http://www.avenard.org/iptv/Setup.html
    He has a section on getting this working with apple router over wireless.. look
    http://www.avenard.org/iptv/IPTV_and_Wireless.html
    Google around and see if other people have had success.. the whole setup is tricky.. and it is hard if nobody has used it who actually understands networking.

  • How to set the router and play the Command & Conquer using direct IP mode?

    My router is WRT54GFirmware Version: v3.03.1
    How to set the router and play the Command & Conquer using direct IP mode with other computer?

    Hi, when you say direct IP mode, what do you mean ? do you wanna play the game online or on the LAN ??
    can you give a few more details.

  • My router does vpn passthrough and is set up correctly. Does it also have to host the vpn?

    my router does vpn passthrough and is set up correctly. Does it also have to host the vpn?
    Thanks
    Greg

    Not sure I understand your question or problem, but I'll give it a shot.
    No, you do not have to host the VPN server on your router.  That wouldn't do you any good for working around the limitations of the VZW network anyways since you are still on the same VZW network.  When you setup a VPN you normally want it to be on someone else's network so you can enable things like port forwarding and remote access.
    The VPN Passthrough feature only allows your VPN clients to access VPN servers, its not the same thing as hosting.  If you want your router to auto connect to a VPN server (which is more common) that is something different.  VPN clients connect to VPN servers.  VPN clients are normally installed on your personal devices or your router.  VPN servers are geographically located somewhere else and on someone else's network.

  • WLC 5508, Prime Infrastructure, 7921 phones and QoS

    Hi everybody!
    I have deployed about 50 wireless cisco phones int the network with 27 APs with the WLC 5508.
    I'm trying to investigate phones behaviour (I have some loss of audio).
    And I use Prime Infrastructure for monitoring.
    I run the Voice Diagnostic on the selected two phones.
    and in the Charts I see the next:
    1. for one phone "Downlink AC Queue Usage" shows all the traffic of "voice packets". but "Uplink AC Queue Usage" shows all the traffic of the "Best efforts packets".
    2. for the second phone "Downlink AC Queue Usage" shows all the traffic of "Best efforts packets". and "Uplink AC Queue Usage" shows all the traffic of the "Video packets".
    that is strange, very strange. the WLAN of these phones uses platinum QoS. none of other WLANs uses "gold" QoS.
    does this mean I have a QoS misconfiguration?
    where may the failure be? WLC? switches? router?
    please, any suggestions...

    I noticed few misconfigurations as per your response
    1. Are you configured AP as FlexConnect ?  If not AP connected switchport should be configured as ACCESS port & trust DSCP. If it is configured as FlexConnect, then you can configure switchport as turnk & in that case you  have to trust CoS using "mls qos trusct cos" command.
    2. WLC connected trunk ports always to be configured to trust CoS not DSCP. Otherwise WLC set QoS value ignored by your switch.
    3. If you WLAN is set for Platinum then you have to configure Platinum QoS profile for 802.1p & set value as 6.
    I would suggest you to verify QoS value preserve across you switch network. You have to take some wireshark packet caputres (as shown in my reference link) and make sure your voice packet DSCP goes into rest of your network as EF. You need to do this for upstream & downstream (from 7921 perspective) traffic. Here is the traffic flow if AP connected to switchport 1 & WLC connnected to switchport 2.
    7921 <-> AP <-> Switch port 1 <->  Switchport 2 <->  WLC <-> Switchport2 <-> Rest of your network
    Once you do this, then you can go to Prime & check those charts to reflect QoS values correctly. Otherwise you do not know where these QoS value get stripped/or modified in your network.
    HTH
    Rasika
    **** Pls rate all useful responses ****

  • Polycom V500 over WAN and QoS

    we are trying to run two polycoms over WAN. One side is able to see the other while the other side cannot. The side that is unable to see the other has the following QoS setup on the WAN interface:
    srr-queue bandwidth share 10 10 60 20
    srr-queue bandwidth shape 10 0 0 0
    queue-set 2
    msl qos trust dscp
    auto qos voip trust

    Your configuration is not from a WAN port but from a LAN port. Please note that just because the service provider hands you an Ethernet port, that does not mean you can use any old LAN switch to connect to it. The service provider is using Ethernet to keep their costs down but it is still a WAN port and requires a WAN interface on your terminating equipment to properly schedule and queue the traffic.
    Examples of a WAN Ethernet (FastEthernet, GigabitEthernet) port are most any ISR router, a Catalyst Metro switch (i.e. 3750-METRO), the WAN blades on a 6500 switch (not LAN blades!), or the Ethernet WAN/Metro SPA adapters for a 6500/7600 SIP module.
    Note that a LAN switch assumes high speed interfaces and not much of a speed mismatch between ports. A LAN port connected to a slow WAN will not be able to buffer anywhere close to amount of traffic that comes through the switch to this port and will cause a HOL (head of line) blocking scenario; and this assumes you setup the port speed and shaping/sharing parameters correctly.
    A LAN switch port output buffers are measured in K and will handle 4 to 10 packets of bursting; on the other hand, a WAN port's output buffers are measured in M and will handle thousands of packets of burst.
    The effects can be staggering. It is not uncommon for a service provider WAN/MAN to be terminated with a bunch of cheap LAN switches that drop upwards of 90% of the traffic destined for the WAN! Just because of lack of buffers on the output queue side and massive oversubscription between the LAN side and the WAN side, using a LAN port.
    And we haven't even started talking about traffic shaping yet to match the speed of transmission from a WAN port to that of the contracted rate such that it doesn't exceed the speed on the receiving side.
    Remember, regardless of the size of the WAN port (T1, E1, DS-3, OC-3, 10Mb, 100Mb, 1000Mb), the 'width' of the connection is serial and still only 1 bit wide. Just the rate of bits being sent per second is different.
    The key concept that often gets lost is if you have a GigabitEthernet port on a LAN switch connected to a WAN or MAN in which you are purchasing 200Mb of service, you are, by definition, dropping 80% of the traffic in the service provider network (or at the ingress port to the service provider!). This is regardless of how 'busy' or utilized the GigabitEthernet link is. A single packet of data, say 500 bytes, will be sent out the GigabitEthernet port at 1 *billion* bits per second. Unfortunately, you may only have paid for 200 *million* bits per second as your contracted access to the service provider's network. Trust me, the service provider will deal with this discrepancy by policing 80% of your data to the bit bucket and they don't care what type of data it is.
    So it doesn't matter how much data you are sending, a 1% utilized WAN connection using a LAN switch in this way could still be dropping 80% (or more) of the traffic!
    A final note: Please don't be confused by most switch vendor's terminology regarding shaping or sharing of multiple limited output queue resources on their LAN switches, this is *NOT* the same thing as traffic shaping or long queues on a WAN router port or WAN/METRO switch port. This includes Cisco. This is why Cisco (and Juniper and Foundry, etc.) sell switches with METRO or WAN interfaces on them and why they are more expensive than LAN only switches.

  • Having trouble setting up an Ad Hoc network with both iOS, Mac OS, and Windows.

    So I'm skiing with some friends but we forgot to bring a router with us.  The lodge internet is passable but we only have one ethernet connection.  My friend connected his (windows) laptop to the ethernet and set up an Ad-Hoc network.  The problem is that only Mac OS and iOS devices are able to connect to the network and use the internet.  The windows machines and Droid devices can't connect or in some cases they can connect they can't use the internet.
    My question is what special wizardry allows Mac OS and iOS to work fine on the ad hoc network but not the other platforms?  Is there something I can do to get the other machines to connect to the network?  Would things work better if I hosted the Ad Hoc network? Thanks for all the help.

    Hi Munkiez, and a warm welcome to the forums!
    See if this helps about halfway down is Wifi/Airport.
    http://www.macworld.com/article/46658/2005/09/octmobilemac.html

  • Can i use my time capsule as wireless storage and not as a router too?

    hi there i just bought my self a time capsule its a 500gb one as i do not need the 1tb+ storage.
    i play a lot of online games and have a fast router so i do not want the time capsule for its router capabilitys i only want to use it as a wireless storage unit is this possible to do?
    if not i can connect a usb storage to my current router and use that as my wireless storage if so where is the best place to sell this time capsule?

    You simply bridge the TC and plug it into the existing router.. it will then provide network storage..
    Can connect either via the existing router or the TC.. if you set up wireless correctly.. if it is a gen1 you can set to 5ghz only.. that will keep it from interferring with the existing router.

  • Can I use my time capsule for back up only and not as a router?

    I have been trying to set up my time capsule as a router but have not been successful, the dsl I am using is not responding. Can I just use my time capsule as a back up device and not as a router? if so how can I do this?

    Yes, you can. Simply plug the TC via Ethernet into the current router and set it up in bridge mode.

Maybe you are looking for