Cisco WAN :: 3640a Budget Router With High Throughput?
Apr 5, 2011
I have a 3640a, 3550 and airopoint 350 I use for my home internet connection. I know it's old equipment, but it's all I could afford at the time. Directly plugged into my modem I get about 10 mb/s, plugged into a switch port no greater than 6, and about 5-6 when connected to wireless which is understandable because it's only wireless B. I'm going to downgrade my connection for the time being as I'm paying for excess bandwidth that I'm unable to use, but any more recent, affordable cisco routers that can handle a high speed cable connection? What kind of throughput does the 3550 get? Cisco states a throughput of approximately 45-60mb/s for the 3640a.
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Jan 25, 2013
When a physical switchport/routed port has high usage, you can move the link to a higher capacity port, upgrade the port, bond links, etc. What exactly do you do when an SVI has high usage? I guess you could remove some servers from the VLAN, but that doesn't seem like a reasonable solution. What dictates the capacity of an SVI? The backplane of the switch?
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Aug 10, 2011
I am facing a problem on a 2811 router. The CPU is remaining around 60% and the router throughput is reaching at most 18 MB while according to the data sheet the 2811 maximum throughput is 61MB. I have checked the output interpreter in order to try and figure out the cause of the high CPU and to determine if it is affecting throughput but there are not processes consuming more than 10%. I have attached the show tech-support and the show process cpu history outputs.
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Jan 26, 2012
I'll have to replace an old WS-C3550-24. Reasons for this: EOL/EOS & we'll need a NAT capable device...
As I understood, the only L3 catalyst that is able to perform NAT is a 6500? Is that correct? If the above is correct, it seems I can only replace the setup by using a router/ASA with a L2 switch. A router with high throughput (+/- 300Mbps) is hard to find, especially as NAT will require CPU resources...
So, my best (affordable price) solution is getting an ASA5520 (450Mbps FW throughput) and a L2 switch?
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Dec 16, 2011
If you have a PoE capable switch, is there any way to increase the PoE budget? Especially the 3750 range. I've heard people say that by adding another power supply in the switch you can increase the budget.I've got a 48-port 3750 and I may need to connect a lot of Class III (15.4W) PoE devices. Power budget of a 3750 is 370 Watts, enough for 24 Class III, but likely I'll need more.
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Sep 10, 2012
I would like to know if the power the Nexus 7K allocates per module is configurable?For example, we are only using the 8 didicated ports on our N7K-M132XP-12 card. The Nexus budgets 750W for the module, but given that we will only ever use 8 of the 32 ports we would like to allocate the remaining power elsewhere.
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Nov 14, 2012
I have a 3750 stack as our core switch. On the core switch I have 2 VLANs. One VLAN is for WAN and one is for LAN. The WAN VLAN has our internet router, and the outside interfaces of two ASA's set up as failover. The LAN VLAN has everything else, including our MPLS router for the remote offices. Execs are cheap and want to increase internet bandwidth by purchasing a local home internet service like COX or Time Warner cable to add to our Business internet service with TelePacific which is a bonded T1 at 3 meg. Execs dont seem to care about SLA's and simply will not spend big dollars to increase the pipe. I was looking at those Mushroom Networks appliances but its too expensive for us also. Any way to add additional low cost bandwidth with out current setup? Maybe prefer to keep important internet traffic to the SLA circuit, and then put low priority traffic to the cheap non SLA cable modem if possible.
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Feb 10, 2013
We currently are using 2811 router for internet Via IPSEC tunnel.Download speed is 30 Mbps and Upload speed is 6 Mbps.
But we are getting not more than 4 Mbps download speed. We did open Tac case and as per Tac 2811 router is not for 30 Mbps.Can any suggest proper model. We need 2 FastEthernet/Gig and one serial port.
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Oct 13, 2011
Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today. On the dashboard of our asa 5510 the "outside interface" traffic usage is running constantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.
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May 9, 2011
I have been trying to find out what the maximum Wan to Lan thruput is for the Linksys Cisco BEFSR 41 Etherfast router..
Have both the version 3 and 4 models and want to deploy them into both 6mb and 12mb DSL networks.. From what I have found the version 1 and 2 have 10mb wan ports and the version 3 and 4 have 10/100mb ports.. There seems to be hardware upgrades as well with the CPU and memory speeds but what they are I do not know for sure.. Found someone stating that they went from a 50mhz CPU to a 166mhz CPU to a possible 220mhz CPU...
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Sep 30, 2011
if i plug a cisco 880 router in to a 100MB WAN Ethernet circuit what throughput will i get? on cisco site it says 25mb/sec but if it is Ethernet shouldn't it be done in hardware and get the full 100mb/sec?
I know that a 1841 plugged in to a 40MB WAN circuit can match that speed but Cisco site say it only can do E1 speed.
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Feb 13, 2012
What is the WAN to LAN Throughput of RV042 router with QoS and SPI enable?
Will the RV042 router able to support a 60Mbps down 3Mbps up Internet connection with QoS enable and SPI enable without slowing down the connection?
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Apr 26, 2011
I am looking to find the correct router for a 50 Mbps Ethernet connectin that is for Internet traffic. It will need to support 50 Mbps throughput, along with routing protocols for BGP, and maybe NAT/ACL's. It most likely will be a used router, in the 2800 series. I'm thinking a 2821 would work, but need to make sure before I pass it on to the customer. They currently have a 3660 they were thinking of using, but I think it would be too weak, and probably only pas 30Mbps at the most before it chokes. They are a mini ISP with their own ASN, Tier 3.
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May 24, 2013
I have found recently that Cisco 1905 router is having a throughput of only 10 Mb. But the router is having 2 Gig ports!.My understanding is that throughput is the data packetforwarding done by a router at a time.
What is actually mean by throughput of a router. How the router can handle 1 Gb of data from interfaces at a time?
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Nov 26, 2012
We installed a solution with 2 Cisco 2801, BGP multihomed failover.
1) The router which is currently getting all the traffic gets to 55% to 60% of CPU usage when handling 40 SIP/RTP streams . This equals 10Mbit up/10Mbit down and it showed around 5800 packets TX and around 5800 packets RX, with a majority of them CEF switched. As those figures are way less than the performance figures published by Cisco, we wonder if we made any mistake in setting up our router, or if we can do something to improve the router setup.
2) Does it have an impact on router performance if we increase/decrease RTP packet size, thus increasing or decreasing the pps relative to the consumed bandwidth?
3) If it is not possible to improve router configuration, we also wonder about possible replacement units for those routers. Would a 2901 do a good job? By how much would it rise the capacity? What other models would you recommend if we plan to rise the number of concurrent calls by a factor of 4 or even 8 times of what we have now (so up to 48000 pps and 80Mbit).
Here is what we tried:
- ip route-cache same-interface does not seem to improve anything
- ip flow ingress on or off makes no difference
- disabling the inbound ACL on fa0/0 seems to reduce load by 10%, although I don't understand why - a very high percentage is CPU interrupts, and ACLs are process switched, or not?
- we tried following the Cisco guide for high CPU due to high interrupts, with no success
Here are some usage statistics:
The graphs that we plot via SNMP show a propotional growth/increase of CPU and bandwidth (and thus pps) At the highest loads, we had a bit more than 55% CPU utilization with more than 50% interrupt CPU.
CPU utilization for five seconds: 36%/30%; one minute: 30%; five minutes: 30%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
127 13140 954 13773 2.00% 0.29% 0.07% 194 SSH Process
[Code].....
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Jun 11, 2012
I recently bought a WRT160NL router. I have a 10/10 Mbps internet connection, but when I am connected via the router it only gives me ~2.5/1 Mbps speeds. Connecting my computer directly to the "wall" results in 10/10 Mbps speeds. I have tried connecting to the router both wireless and by wire, it makes no difference. The internal wired and wireless speeds are fine, as I have copied files over the internal switch and via the wireless network at relatively high speeds. I have not fiddled with any connection settings except creating a few permanent DHCP leases.
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Jun 22, 2012
I have a E4200 V1 with 1G internet connection, when i connect my PC, with a cat6 cable, directly to the modem the download speed can upto 800Mbs, but when i connect through E4200 to the modem it down to 100Mbs.
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Feb 5, 2013
just upgraded my internet to 150/10 but with speedboost DL speeds hit 250 mbps. I currently have a e3200 and it tends to max out at 110mbps, any router recommendations that will support the full 250?
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Feb 1, 2012
I have a E2500 connected via LAN to my network via a switch or hub through a sonic wall and into the modem out to the internet. The problem is that I am only getting +/- 5Mpbs Down and +/-7 Mbps up through the router.
If I connect my computer to the network with out going through the router my speeds are more in the range of +/-28 Mbps down and 16Mbps up. I have been working with Linksys support but they have not been able to assist me with this yet! Is there any configuring I should be doing at the firewall or to the router to tell it to open up the port for faster speeds?
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Mar 14, 2012
How do I find the default throughput supported by the Router 3925E?I need a router that supports 400Mbps line 3900.The 3925E supports? If so, you need to upgrade or add a EHWIC? If so, what can I addto support that throughput?
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Sep 10, 2012
Is it possible to bond two T1 lines for increased throughput and for possible failover situations? I currently have the second T1 as just a fail over.
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Aug 11, 2011
I cannot find this info on the cisco site.
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Feb 12, 2012
I have an E4200 running firmware v1.0.03.Works fine for a period of time (might be hours, might be days) then throughput drops to something in the range of 1-3M when typically I'll see 6-8M (DSL). I can reset the DSL modem, hubs, etc but the problem isn't fixed until I reset the E4200; so I've pretty much narrowed it down to the router.
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Jul 12, 2007
What the Firewall throughput is for the BEFSX41.
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Dec 25, 2010
I have been running some test to see what I can do for speed to the interenet and NAS drive.I have a NIC card (1394) and the max connection I get is 400 Mbps. The card is suppose to be 10/100/1000 card and E3000 is the same... so why can't I connect at 1000?Max transfer I get to my NAS is 64-80 Mbps. Is there any way I can get this to be faster? I have a 1TB western digital drive attached.If I went with a NAS system like a Synology BYOD system could I get faster speeds for transfers if the NIC on the system was a 10/100/1000?`
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Feb 17, 2008
I am currently using Netgear FVS338 Routers / VPN Devices in 3 different locations and honestly I am not happy / impressed with them whatsoever.I have been doing some research and came across the Linksys RV042 and RV082 devices that caught my eye. The question is what is the VPN throughput of these devices?I have gone over the website, spec sheets and they only really say the throughput of the LAN Links and not the WAN Links. I currently have very reliable 20Mb+ Synchronous connections between all 3 sites and have not been able to get any good performance out of the Netgear devices and contacting their support is a joke. They can't tell you anything other than it should work or we will swap out the unit. Well if I have 3 of them that have been purchased at all different times I don't believe that they are all having the same issues. What these units 3DES VPN Throughput and will more than likely be purchasing 3 of which ever once suits our needs immediately.
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Nov 12, 2011
what's the difference between High-power and High-gain wireless USB adapters.
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May 21, 2013
I'm trying to identify a Cisco router that will give 300+Mbps through a 1Gb WAN port. I think the 1921 can get up to around 300Mbps with the on board RJ45 ports, but are there any other/better suitable models?
There's no need for any other particular functionality or feature set, the routers aren't doing anything fancy or unusual - it's the achieved throughput that's important.
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Aug 13, 2012
I have a 500Mbps Internet Connecton with fibre and I bought an EA3500 recently. I found the LAN through put degraded by compare connected and not connected with EA3500.all connections are using CAT5e cable with all Gigabit port enabled in PC/ISP Router.
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Dec 27, 2011
I'm using E4200 (fw 1.0.03) as AP and EDIMAX 6675nD as a client. I can't get over ca 10MB/s data througput even there aren't any other communication loads. Test conditions are: 5GHz band, no other networks in the band, distance 2m without any obstacles, no other data transfers (except the test), data source is NTB on GLAN port of Linksys, data sink is NAS at GLAN port of Edimax, test file is 0.5GB file. The NTB and NAS doesn't seems to be a bottleneck, because NTB connected directly to the Edimax does over 50MB/s. Both the E4200 and 6675nD are (should be) capable of 450Mbit/s @ MCS23. Strange thing is that none of them allows setting of MCS23 in their manual settings. It ends with MCS15. While forcing the E4200 to a specific MCS (in the hidden wireless_advanced menu) the MCS15, 14, 13 and auto give very similar results. The throughput drops by MCS 12 and lower indexed MCSs.The 10 MB/s seems to be a low number.... and (based on internet forums) I'm not the only one fighting the magic number 10MB/s. What is the reason of the ca 10MB/s bottleneck? And the resons why both of the routers are quiet about the MCS16 to 23 schemes in their menus, while their labels aren't?
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Aug 14, 2012
I've just upgraded to FIOS quantum service. (50 MB down, 25 up). I have a Linksys 2500 connected to the FIOS router. The FIOS (ActionTec) router provides the full advertised speeds with any speed test service I try. But with the 2500 connected to the FIOS router I get download speeds about 3MB. The MTU on the linksys is 1500. It's connected correctly and is running it's own DHCP server. (Why am I doing this? I try to avoid the ActionTec routers, they have broken many services in the past.)The 2500 firmware is up to date. I've tested on the wireless and wired (ethernet) interfaces.
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Jan 6, 2013
i want to know could router CPU became high, if the massavise/ ddos traffic all fowarded to null0 interface?
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May 15, 2011
We have a Cisco 7204 VXR Router and it is having a high cpu issue for the past few days. [code]
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