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.
I have a question regarding Circuit-speed WAN performance. I purchased a 1Gbps Internet Link and want to know what my max through put would be on that router.
The Data Sheet states 35Mbps, why buy this router if I can not utilize this 1gig circuit.
The only option that I have under the IOS that's installed on a 2900 series router is track. I don't have a version that supports SLA. The interface is connected to a switch that the ISP gave, and all of the tests that I've done refuse to make the circuit go down. If I were to lose the circuit, the interface won't show to be down unless the switch were to go down.
Is there any way with track to see that the provider's circuit went down on a switch? I was going to set up sla to ping the ISP's address, but I can't do that unless I upgrade the OS. These are a pair of routers running hsrp at a remote datacenter. Is sla the only way that I'm going to be able to accomplish this? I have tried track with different options in gns and all of them keep the CE's interface up and doesn't show it down. Watching a route in the table isn't feasible because I wouldn't want it to fail over because another site is having problems. Tracking the route doesn't work for connected routes either because the route itself doesn't leave the table as long as the interface is up.
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.
View 3 Replies View RelatedInstallation of 2 x 4 Mbps MPLS circuit on primary router (CISCO 2951) and 1 x 8 Mbps Ethernet link on secondary router (Cisco 2951). We have successfully implement the primary router with 2 x 4 Mbps MPLS circuit. Site is having two computer room CR1 and CR2 and distance between both room is 200mts. CR1 is having primary core router and primary core switch where the service provider terminated the new MPLS circuit and we have done the successful implementation. CR2 is having Secondary core router and secondary core switch where we needs to have the termination of Ethernet link but service provider has delivered the Ethernet link on the CR1 which is incorrect DMARC Location.
Both the computer rooms are connected via optical copper can we use that copper to connect the circuit on CR2, as per my understanding we can use the optical fiber to connect the wind circuit on secondary router on CR2 by using the media connector.
Is it possible to run 802.1Q on a point to point Ethernet circuit between 2 Cisco ISR routers? I need to carry multiple VLANs across an ethernet WAN circuit but not sure if a Cisco router would let me do this. I can surely lab up but was looking for expert opinion on what's best aproach to carry multiple VLAN across the WAN ethernet. Plugging the circuit to a LAN switch is not an option since this is a managed WAN router.
View 10 Replies View RelatedEven without Open vSwitch, and using the stock, Linux bonding module with 802.3ad mode I had the same problem.
From what I have read about bonding, it seems like if you bond (for example) 2x 1Gbit Ethernet connections on two servers (ie so both have two ports bonded), then if using something like 802.3ad, a file transfer should utilize both ports, and you should see a throughput of 2 Gbit/s. So this would be an increase in throughput and bandwidth, right?
But, what I generally see, is for any single TCP connection, only one port is ever utilized at a time.So for example if I'm SCPing a large file from server1 to server2, I generally see that the scp session is only using one interface, at 1 Gbit/s. I can then also run a second SCP session which will use the second port, and also move at 1 Gbit/s.
This would be increasing the bandwidth, but not the throughput, correct?Which of these behaviors is what I should be seeing with 802.3ad? I guess it depends on the hashing method? Is there a hashing method which will allow a single connection to be spread over two interfaces, allowing 2Gbit/s transfers?
I want to know which router can be used on 100mb cable connectionThe router will be using the connection from cable modem on bridge mode/modem mode with eth to routerI kind of have a idea looking at performance ratings but ppl have mixed opinions when you enable NAT and ACLs etc etc285129013825.
View 5 Replies View RelatedI'm looking into upgrading my WAN link to 100Mb via Fast Ethernet link. I'm waiting to hear from ISP about what exact technology they use, but according to my manager they will be coming in over fiber and then terminate to copper. I currently have 2811 in production with two T1 cards bundled together. 2811 has basic configuration with only 2 ACLs. I have ASA 5510 for NAT, Ipsec and other services. What router or networking device (layer 3 switch, such as 3560G perhaps??) should I use to accomodate 100Mb link? It seems that 2811 will not handle that kind of bandwith..In short the max recommended bandwidth limits for the 28xx series are as follows:
2801--2 Mbps
2811-4 Mbps
2821-8 Mbps
2851-12 Mbps
I don't want to create a bottleneck and am looking for appropiate solution to accomodate 100Mb link. Also, could ASA 5510 become a bottleneck in my scenario?According to Cisco docs ASA5510 can handle 300Mbps of firewall througput, but I'm not sure how it'd work in production...
I have been assigned the task of configuring a 3945 router for sip circuit. [code] Where am I supposed to put this config? On the bonded serial link?
View 2 Replies View RelatedI need to make sure I have a router available to work with DS3 circuit on remote site. A remote field technician tells me there is a 3745 router with "HSSI" and external Adtran CSU/DSU available. Is that an indication this can work with DS-3 circuit?Which specific Adtran CSU/DSU do I need in order to make it work with DS3?
View 1 Replies View RelatedI am assuming, that the slowest component on a network determines the connect speed? I am having a small network with 4 pcs and 2 of them show 1GB connect speed while the other 2 show 100MB. What would cause 2 units to run at the 100MB speed on a Gigabyte-Switch and Router?
View 3 Replies View RelatedLast evening when I turned on lights a circuit breaker was triggered. I turned it back on and it didn't trigger again. I went to sleep but when I woke up this morning and turned on my pc I noticed that I couldn't get online. I checked my router and it was dead - no lights at all. I've tried unplugging it, letting it stay unplugged, hitting reset etc... but to no avail.Lighting and the electric outlets are behind separate circuit breakers, but the only explanation I can think of is that the triggering of the cb and my 825 dying are linked. Am l looking at a dead router or is it more likely that the power adapter got fried? I don't have a fluke at my place right now due to early packing in preparation to moving away in a couple of months time so I cannot test the output voltage of the adapter right now. . Where can I get a replacement power adapter if that happens to be the culprit?
View 1 Replies View RelatedWe recently purchased a Cisco 2921 router to be our edge device for a small satellite office (24 users). In addition, to the router we purchased a vwic3-2mft-t1/e1 module. Now the surprise, we ordered a bonded T1, I thought we were getting frame-relay circuits from Verizon, but someone ordered a 3M IMA circuit. I am new to configuring serial connections, and had planned out a frame-relay configuration. With that said, I have the following questions:
1. Can I setup a working serial connection to Verizon using the installed ATM circuit and the 2921 and vwic3-2mft-t1/e1 card I have? If not, what do I need in conjunction with the 2921?
2. With the frame-relay configuration, I enable controllers, configured the MFR interface and sub-interface, and serials. How much different is setting up serial ATM connections?
I found that ADSL is packet switching type of communictaion. Definition for circuit switching is "A type of communications in which a dedicated channel (or circuit) is established for the duration of a transmission."In practical, telco line connects to the ADSL modem/router through which we are communicating to internet.In this context I have some doubt.The telco line which is connected to our ADSL modem is not shared with any other device ,connects only to the CO of the telco where we get the internet connection.That means the line which connects to the modem is dedicated upto CO.then it becomes circuit switching or not upto the CO.
View 5 Replies View Relatedyou have a Cable Modem and are paying for 30MB/sec download or better service, but the network connection on the cable modem is only 10/100; all very common today.Your network connection is showing it's connected at 100 (computer - router - cable modem)....now on the technical side, remember that a 100 MB network connection can only transfer data at a maximum rate of 12.5 MB/sec (not something the normal home user knows or even thinks about).So here's the question; why would you pay for 30MB/sec download speeds when the cable modem itself can only transfer (in theory) 12.5MB/sec to you over the network?
View 3 Replies View Relatedhow to configure the 2nd WAN port to support 4G/LTE connectivity that will serve as the backup circuit to the primary MPLS circuit?
View 2 Replies View RelatedImagine you have 5 sites, one router each site (2851 as CE) connected to MPLS network. All sites have max 3xT1.Requirement:In case CE router or circuit to MPLS fails in any of those sites, I need to provide backup circuit to reach MPLS network.
Proposal:Bring one Internet circuit to each of those sites and create DMVPN to every site.
Question:Let's say Site1-MPLS circuit goes donwn.
Then all traffic from Site1-MPLS should flow thru the IPSec tunnel to all other MPLS sites. Am I right that the traffic coming from Site1-MPLS will ingress via the 2851 CE routers, correct? Is this the typical design? How to accomplish this, I'd like to setup a lab to simulate it.
I am setting up a T-1 circuit and the instructions for the WIC on the router request that I use a RJ48C cable. I do not have one. Can I get away using a normal RJ45 Cat5e cable?
View 8 Replies View RelatedI have three ESW-540-24 10/100/1000 Switches in a small school environment
1. ESW performs as a server switch for out small cluster of VMWare ESXi Hosts and iSCSI SAN with a link-aggregation/lacp/etherchannel connection to the backbone switch, and a Link-Aggregated Connection to the thrid ESW switch via a multimode optic fibre link to a near-site backup and DR location
2. The second ESW acting as network backbone links back to the server switch and our older LinksysSRW224G4 (four SRW224G4s) switches using Aggregated Links / LACP to reduce bandwidth contention and allow for link redundancy
3. The third ESW as mentioned previously is at the backup DR location linked back to Switch 1
When using Single 1GB links between these three switches I can almost saturate the 1GB link (80-95% utilisation) as soon as link aggregation is configured by bonding 2x 1GB links together to form an etherchannel link utilisation will not exceed 100MB (network monitor graph on a server/ workstation runs flat at 10% utilisation) I have tested this multiple times useing large file transfers accross our SANs (which have high enough throughput to saturate links) and can confirm that performance degradation occurs as soon as an etherchannel is configured on the same ports (regardless of manually setting admin speed and duplex of copper ports etc) all indicators specify that ports are running at 1GB even though throughput REDUCES by 90%.
We are not running the latest firmware yet (2.0.3), however I have read the release notes for newer versions (2.1.16 and 2.1.19) and there is no indication of a fix for etherchannel/lacp performance issues.
So I recently got a new computer today and it won't let me use my 100mbps of internet bandwidth. (Asus Sabertooth Z77 with an Intel 82579v gigabit lan controller) I noticed that at the LAN connection properties>Properties>Configure>Link Speed tab the 'Speed and Duplex' option was on Auto Negotiation and it was only accepting (or supporting) the 10mbps Full Duplex. When I switched it to 100mbps Full Duplex it would mark my connection icon with a red cross and when I clicked diagnose it said "Please connect your ethernet cable or your cable might be broken". So I tested my internet speed with that same cable on a different computer (laptop) and it worked with 40Mbps, so I don't think the cable is broken. Also I just recently downloaded some drivers but one was specifically for the Intel LAN controller but I'm a total noob for all of this computer stuff I don't know if it messed it up or something. Is it the motherboard that's not working correctly?
View 3 Replies View RelatedWe currently have 3* offices located in London, Reading and Oxford which have a (ISP) VPLS service to interconnect all sites.I am using RIPv2 for intersite routing between all offices. We plan on implementing a backup circuit at the Oxford office for resiliency.There are 2* Core 4500 Switches, Core 1 is uplinked to the Primary circuit and Core 2 will be uplinked to the Backup circuit.At the moment Core 2 learns all of its routes from Core 1.My question is, if the Primary circuit goes down, how do we get the Routing on the Core Switches to than point out of the backup circuit?
View 1 Replies View RelatedIs there a big difference in operating AP's when they are uplinked at 100mb vs 1000mb? We have 2 "main" offices that have AP's that are all connected to our access switches at 100mb. Recently with the addition of mobile devices, phones, etc we are seeing some issues. Today, we had a meeting room that had 20+ people connected to one AP and they started seeing issues of people getting disconncted or unable to connect.Just wondering if the uplink could have anything to do with this, or if we are just over subscribing the APs?
View 5 Replies View RelatedI have a Cisco WRVS4400N on the latest firmware and I have just had my Virgin internet connection upgraded to the 100Mb. Once i thought it was upgraded i checked with a broadband speed test and it came back as 15Mb download and 5Mb upload. Before i rang Virgin i thought i'd check with a direct connection from my pc straight to the modem. Ran the speed test and it came back as 100Mb download and 5Mb upload. I thought the best thing to do is restore my settings back to factory and its still the same.
View 7 Replies View RelatedI'm trying to configure and etherchannel between 2 switches. A 3750 and a 3750G, but the port channel is down: 3750. [code]
View 2 Replies View RelatedAm trying to joing a Joining SF 300-48P 10/100mb Switch to a SRW2038 Gigabit Switch,
I purchased a "Cisco SFP+ Copper Twinax Cable - Twinaxial cable - SFP+ - SFP+ - 1 m" but I am uable to get connection
I have a c3560 switch that has two gig fiber modules in it. I need to uplink fiber to one of these at 100mb. This is because this port will be rate limited to 20mb and 10 percent is the lowest you can go with the rate limiting command. Is there a 100mb fiber module i can insert in the 3560
View 1 Replies View RelatedWe 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.
We have 4 switches C3560 running EIGRP. We have PBR in one of them in this way: [code]We have conneceted a dedicated circuit in FastEthernet0/23.
The question is: ¿what would happen if circuit fails but FastEthernet0/23 remains in connected state? 192.168.1.6 will be unavailable.PBR will maintain forwarding traffic to IP 192.168.1.6? This involve that this traffic will fail.
4402's been running quite happily until recently. I have 11 wlan's configured, but only 5 are enabled at this moment in time.
There are 26ap's connected to the 4402, a mixture of 1130's and 1142's. The memory error in the subject is popping up quite frequently.
No reference I can find on this forum or other Cisco.com.
*osapiReaper: Aug 01 14:35:07.004: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory went below 100MB
*osapiReaper: Aug 01 14:34:56.996: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory went below 100MB
*osapiReaper: Aug 01 14:34:46.988: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory(code)
My ADSL light switches off randomly during downloading a 100mb file. I just cannot complete the download. This has been happening ever since I switched my router to a wireless iBall Baton 150M.
View 9 Replies View RelatedI thought I saw a post/question in regards to "how to" configure a Broadband backup for a MPLS circuit.. What I am trying to do is use a cable/dsl/ broadband (secondary) connection as a backup to a MPLS circuit (primary). I have EIGRP and BGP configured on both the branch endpoint and the tunnel headend. The tunnel is used by the interface that connects to the secondary circuit. The branch location router is a 1841 and the "headend" tunnel router is a 3825. I am wondering about the configuration/syntax of a "weight" or static route that can be used to have data flow over the tunnel when the MPLS circuit goes down - and then switch back to the MPLS circuit when it comes back on line.
View 1 Replies View RelatedI 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...