Cisco Infrastructure :: 2960S Upgrading A Customer Network
Mar 9, 2013
We are upgrading a customer network and have found that users of a particular application [which is very bursty/bandwidth hungry] have experienced a marked performance drop. I see lots of output drops on the interfaces. This is only happening on 2960S-48 the rest of the users on 2960PSTL [all PoE] are not having nearly as bad a time.I have tried various QoS configs with little success. I have seen on some other blogs that the 2960S has less buffers than the rest of the family.
Removing QoS or upping the users to 1Gb cures the performance problem.
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Sep 25, 2012
I am managing a Cisco 881 with Adv Ip Services ( CISCO881-SEC-K9). It has IOS 15.0(1) M8 on it. I see that there is a new IOS version 15.2M&T that (I think is applicable), and I have read the upgrade procedures for upgrade via USB and TFT.
If I install it will my license for Adv Ip Services be preserved or overwritten. And if the latter, do I need to export it and reapply it? If so, what is the process?
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May 23, 2013
I have a Cisco 2960S-48FPD that someone was trying to do an upgrade, loaded c2960-lanbasek9-mz.150-2.SE2.bin instead of c2960-universalk9-mz.150-2.SE2.bin. To try and fix it they deleted both but before they could put the proper ios on, another person dropped power. Now the switch will boot into rommon, HOWEVER it won't respond to any keystrokes. It's stuck at "..... flash_init boot " and the switch: prompt. I have tried using both putty and SecureCRT, the settings are correct, the usb-serial works on another c2960S. I can read the output when it goes into rommon so it's not a baud rate issue.
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Apr 15, 2011
I have several 2960s and 3750s and two 6506 (ws-cac-3000w) recently move to new location The power outlet is the same ,but Volt is different current 2960/3750 use this(one phase 3 wire) 220v and new location change to (from 3 phase 4 wire -> one phase 220v)6506 current using(one phase 3 wire) and will be change to (from 3 phase 4 wire -> one phase 220v)
I had search doc about power supply /cable , only show support single phase 220 v ,but not description vlot between each wire !!Does new location power outlet suit for 2960/3750s power and 6500 ws-cac-3000w ?!? Do I need chane power outlet back to current using?
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Nov 12, 2012
I am a beginner, and my customer complaining about the internet connection performance which is very slow, the network description is given below:
Description:
The building has four floors and each floor has one mount rack which contains one 26 port switch + 16 port switch. and each floor has 32 pc as well.
- 4, Cisco SR2024 un managed switches.
- 4, Cisco SR2016 un managed switches.
- 1, Cisco access point for internet connection.
- 1, Active directory server.
- 1, Mail Server.
- Internet ADSL connection, 1 MB speed.
This is the current topology.
*Note:The links and cable type "100BASE-TX under Cat 5" among all switches.
*Note:Whenever I connect to the main router "Access point" the internet becomes very fast.
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Apr 11, 2012
The have around 80 staff and I think the current infrastructure is overkill for the size of the company. The current kit is old and they have no GB ethernet ports. They currently have:-
Core Switch:
1x Cisco c6509with a 48 port fast ethernet module (WS-X6248-RJ-45)
and an 8 port fibre module (WS-X6408A-GBIC)
I'm looking to replace this with something with 72 ethernet ports and 8 fibre ports
Access Switches:
2x 3500Replacement needs at least 48 ports and 2 fibre modules each
and 2x 5500Replacement needs at least 72 ports and 2 fibre modules each.
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Sep 3, 2012
How do you assign each customer to a vlan ? and what kit do you use at the core to roll out VLANS to each pop? We are thinking of using Juniper kit - putting customers on there own VLAN, and having a managed service like TR-069 on those VLANS.Is it do-able and what does everyone use for a TR-069 server - I've been looking on the net and havent had much joy in finding a server - or is it not as easy as I understand it to be.
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Jan 15, 2013
I need two vpn tunnels from one ASA5510 to two customer endpoints but with the same host on the remote side, the two tunnels are for redundancy reasons. Can I just configure two tunnels with the same host on the remote side and assume the ASA will understand to just use one of the tunnels when both active or the one left when one is down? Or do I need extra configuration for that.
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Apr 16, 2012
I have 6 cisco switches already on my network and I just got a 2960S PoE switch that I need to enable for VoIP. The voice vendor is coming in to setup our phone system for VoIP and I need to enable this new 2960S 48 port switch for the VoIP phones, I don't know how to do that, or other taskes needed for this project.
I was told that I need to uplink the new 2960S with the Catalysy 4507R using an ethernet cable and to "trunk the ports" and enable the 2960S as a VTP client - ok great - how?
I was told I also need to use the switch port voice VLAN command for the new VLAN - again, great - but how?
I actually was able to telnet into the switch and I gave it an IP and I created a new vlan but thats all. We are using non Cisco IP phones.
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Aug 13, 2012
I have a cisco catalyst 2960-s PoE switch. I have a web access to the switch and am able to get statistics on each port. However, I am wondering if there is a way to have a diagram of the trafic on each port?
Also, what is the best way to monitor the trafic on a router ( i have a cisci 1811W)
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Feb 22, 2011
2950s work fine when upgrading the IOS using CNA. On all 2960s I get Failed to execute the command archive download-sw /overwrite /http iosFile
If I run the command using telnet and tftp server it works fine.
I have tried by deleting the old image then trying upgrade using CNA, but no luck
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Feb 11, 2012
We have a new remote site for customer which only have 3G connection and to add more pain to that they have dynamic IP address.the easist possible solution was EZY VPN.....client has 2800 router with 3G and at our end we have ASA.....the issue is that , that always server (clients nehind) asa initiate connection to the remote site ie to 3G.....the rule of thumb is that whenever client(ie EZY VPN) will initiate conection the tunnel will establish.
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Dec 7, 2012
I run a small coffee shop and want to offer free wifi to my customers while also having a secure network for my point of sale/internal network. What is the best way to do this on a limited budget? And what is the best way to protect the secure network?
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Sep 5, 2012
We are planning for a modest expansion of our wifi network. Here is what we currently have, and what we are doing:
-2 1100 B/G AP's; a "primary" and a repeater. Both have a single SSID.
-1 1142 B/G/N; autonomous, with a different SSID
What we would like to do:
-Purchase a 2504 WLC and two more AP. Looking at a 3602 simply for future growth, but are not sold on the idea of such an AP. Would consider two more 1142. At any rate, we are looking for two more AP.
-Still keep our current AP's in use.
-Is a 5 access point wifi network, all controlled by a 2504 feasible?
-Will our existing investment of older 1100's and the single 1142 play nice with eiither a pair of 3600 (or 3500 or even 1142)?
-Can we go to a single SSID using all of this equipment, and clients connect at whatever speed is possible with whatever AP they are joined with?
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Oct 23, 2012
I'm part way through trying to set a Catalyst 4510R to factory defaults, One thing I'm stumped on is how do i remove the Customer Disclaimer eg what commands do i need to remove this and any other customer text within the switch, below is copy of text from the switch with customers details omitted.
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Apr 29, 2012
I have a Cisco 3750 switch stack and am performing QOS against a number of SVI vlans on per customer basis. I have 8 customers, each with a /29 public subnet and each with an SVI as a gateway within that /29 range. I then have a "routable" SVI vlan for routing upstream to the internet. [code]
The service policy attached to the interfaces above is supposed to perform policing on download and upload traffic. The service policy is attached to the Routable VLAN for download policing and the Customer VLAN for upload policing. For example, traffic entering the routable VLAN will be policed based on traffic matching an access list to the customers IP range (download). Traffic entering the customer VLAN will be policed based on traffic matching an access list from the customers IP range (upload).The command I am using to police is as follows - police 10485500 966080 exceed-action drop.The problem I am experiencing is traffic into the routable VLAN is being successfully policed down to the 10Mbps i have specified on a per customer basis (download).Traffic entering the customer VLAN is NOT being policed at all (upload).I am limited as to the use of the parent policy map I have specified on the interface, as I can only assign it in one direction (input).
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Aug 16, 2011
one of my customer has CSACS & has bought CSACS-5-BASE-LIC, at the time of registration i ,had put the end customer as my company, how to change the end customer details on the license.
Had sent a mail to licenseing@cisco.com, they changed the end user details at there end, but the same is not reflecting on the physical box at the customer site.
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Oct 8, 2011
I am upgrading my home network, I am running cat 5 cables all around my house. currently I have a comcast cable modem and a netgear router. I will have about 20 cables coming in to my office (all the network equipment is already there) I know I will need a switch but I am not sure what kind. I will be upgrading my wireless router to a much better one, should I have the router get its internet connection from the switch or have the switch get the connection from the router. Will I need a firewall? I also have a web and ftp server running behind the router? how should I connect my server?
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Jan 19, 2013
I am looking for a simple First name, surname and email in exchange to unlimited free access to our wifi. Would want the data to load on to Infusionsoft?
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Feb 5, 2013
We use a Flex7500 with local switching and centeral authentication. My question is can i use the Customer's radius server in order to authenticate? or should my WLC have IP conncetivity to any radius server im adding?I guess what i'm really asking is should my WLC know the radius server or does the request can go back to the AP and from there to customer radius on his subnet?
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Oct 26, 2011
We have Cisco 4507-R installed at customer site which got hang twice and became normal after getting booted.I have analyzed show tech-support for this switch after reboting but not found relevant logs for hang issue,
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Jan 5, 2012
One of our clients is replacing some of their aging network components with 4 Cisco 2960S switches. Unfortunately in this case, my skills of switch configuration are greater than my skills of network design. I have a really crude network diagram of their basic network layout (4 servers, 4 switches, and a number of endpoints).
How would you experts design the physical connections in such a way as to facilitate some redundancy?
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Jan 20, 2013
I've been digging into some performance issues on a LAN that has a couple of 2960s. The monitoring software I'm using has indicated a high amount of discarded outbound packets (up to 5%). The suggested resolutions were to enable flow control.
My question is does enabling flow control on all ports interrupt network traffic at all? this is a production network so I had already planned on doing it during off hours but also wanted to know if I should be prepared for any significant drop in traffic.
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Feb 27, 2013
I have a two year old Dell, an XPS Q740 (from the system info) Intel i7 CPU. Works fine but I've recently upgraded my router to an N standard with dual channels operating at 2.4ghz and 5ghz, so I'd like to improve the the network options for my machine. Looking at the device manager, it says I'm using an Intel WiFi link BGN 1000 which operates at 2.4ghz.
What card if any I can install to bring about a speed improvement. Fiber broadband is also due in my area soon so I want to take advantage of this.
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Mar 21, 2011
Cannot connect network radios after upgrading to latest firmware. Could connect before upgrading firmware but throughput was slow for computers and streaming. Now I can connect computers, but not radios. They connect ok using Belkin and Linksys routers.
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Mar 2, 2012
I recently upgraded my d-link router DI-524 for Netgear N600 WNDR3700v3 and every component (wired or wireless) is working except network printer. I have it wired directly to the router and all pcs on the home network can see it, however when i select to do a test print, nothing prints to the printer and i get error. I had this setup using the d-link router with both the printer and the XP PC wired directly to the router and using the XP PC as a network pc sharing the printer to other pcs (Vista / Windows 7) on the home network.The printer is a Toshiba e-studio 160 series.. I re-added the print drivers for XP and still not able to print. Is there anything else I can try?
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Mar 22, 2013
I was using Remote Desktop between two home computers hard wired through the router and a switch. Now after upgrading to firmware 1.35 I can't get remote desktop to connect. I get an error that I may not have permission, etc. I have the DIR 655 ver A and am running Windows 7 professional on both computers.
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Mar 17, 2013
i have a simple router on a stick config which is providing dhcp to a customer SSID. however i don't want employees to stay on it and eat the band width since its open. the lease is set to an hour, is there anyway that i could set it so that once your lease expired it can't be renewed for 4 about 8 hours? I am using a cisco 2600 router in this setup.
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Jul 10, 2012
Is there a way to be able to check from one computer on a network to another computer on the same network when both have been set up with NAT?
For example, computer 10.0.0.10 cannot ping 10.0.0.20 because NAT has been set up. Port forwarding does not seem to be an answer. Is it possible for NATted computers to be able to ping each other or not?
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Mar 27, 2013
I am looking for a "no marketing babble" explanation of what exactly Cisco Prime Infrastructure does, that the built in 5508 Wifi administration console and Cisco Network Assitant does not do.I already use the "Cisco UC560 Configuration Assistant", the "Cisco Network Assistant" for our switches, and the "Wifi 5508 web admin console", and I am fine with that.At another site where I work, that is now going with Cisco Wifi, it is suggested that "Cisco Prime Infrastructure" be purchased.Is it important to me to have a "single pane of glass" view of the entire network? NO IT IS NOT.
All this marketing babble about having everything converged and accessible for mobile BYOD users. Yeah, that's great, but what is Cisco Prime Infrastructure actually going to do about all the mobile wifi devices coming in to the network that MUST use a web proxy to get out of our network? Many don't deal with proxy.pac correctly or don't read it at all, unless that function is explicitly turned on, by the individual device owner, in an often hidden location in their device settings. I am mainly looking at the $3000 a year price for Prime Infrastructure and going, no way, the Cisco Network Assistant and 5508 Wifi web console that are thrown in for free with the new hardware is fine with me.
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Mar 13, 2011
We have several branch offices that only have a Cisco ASA 5505 connecting clients to the Internet, our main office and other networks. Some of the branch offices uses Site-to-Site VPN to connect to our main Office, other uses a VPN-service delivered by our ISP.
The networking is working fine, but we are having problems with figuring out how to handle dns lookups. I see that the ASA DNS Client can use conditional DNS forwarding, but it cannot act as a DNS server for our clients on the inside network.
We want to do the following:
- Default dns quires should use the DNS servers for the site's local ISP (some sites also uses dual ISP, so we are using DNS1 and DNS2)
- The domain name: company.local should use our main office DNS server (acces by Site-to-Site VPN or our ISP's VPN)
- The domain name: sitea.company.local should use our SiteA DNS server (acces by Site-to-Site VPN or our ISP's VPN)
etc...
We have solved the issue by using Windows DNS server's conditional forwarding for the branch offices that has a local Windows 2008 domain controller.
our branch office's that only have a Cisco ASA 5505 Security Applience?
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Oct 22, 2012
CNA version is 7.5(6)
router: Cisco 2951
error: unable to connect
are able to connect to other switches, such as 2970 questions:
1. is there any configuration needs to be done to connect to 2951 though CNA?
2. is 2951 supported device in CNA?
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Oct 4, 2005
I used to be able to set an uplink port with the interface command "port network" so that it would not learn all the mac addresses that are being flooded down to the switch. It does not seem to be there on the 2950's or 35XX switches.
Where did it go and what is replacing it? Interface is a Trunk port as well.
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