Cisco Switching/Routing :: Esp-aes 256 - Effects Of Encryption On Bandwidth

Aug 22, 2012

will encrypting traffic: esp-aes 256 esp-sha-hmac  across a WAN circuit drop a nics performance by half?

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Cisco Switching/Routing :: Effects Of SPAN Port Configuration On 4507R+E Switch?

Oct 29, 2011

I read quite a few documents on configuring SPAN on a cisco switch but none of them mention any limitations or any kind of CPU load it can have on a switch. I need to configure this on one of our switches and would like to know if there are any implications related to SPAN.

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Cisco Switching/Routing :: Encryption Module For 3845

Jun 25, 2012

Can the encryption module (DES/ 3DES/AES/SSL VPN Encrytion/compression) for Cisco Router 3845 able to support the external connection from other high end router, for example cisco 7200? What is the maximum bandwidth, load and concurrent connection it can support?

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Cisco Switching/Routing :: WS-4500X-32 Support For TrustSec MACsec Encryption

Apr 10, 2013

When will the WS-4500X-32 support the TrustSec MACsec Encryption ?

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Cisco Switching/Routing :: 6500 Switching Fabric Bandwidth 720 Is Calculated?

Jan 21, 2012

As per my understanding 6509 all slots are dual channel, so 9 slot * 40 per slot (20 g in and 20 g out) = 360 GB How cisco claim the 720 ?? What about the 6513 chassic switch fabric connection?

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Cisco Wireless :: Does CSCua29504 Effects The 4400 WLC

Apr 7, 2013

Does CSCua29504 affect 4400 series WLCs as well? Bug toolkit mentions just 5500, so want to get a confirmation.

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Cisco Switching/Routing :: To Limit Bandwidth Using The MAC On 2960

Jun 11, 2013

Any example to limit the bandwidth using the MAC address on 2960 ? I want to limit the bandwidth (IN / OUT) of a server only for Internet flows.

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Cisco Switching/Routing :: Bandwidth Splitting On 3750

May 30, 2013

I would like to connect to a 1Gb routed uplink, and then impose bandwidth limits (via shaping/policing/whatever) on a per port basis.  The ports could either be configured to route, or as switchports on separate VLANS.  I'm trying to identify hardware that will let me do this.  The set up I have in mind is shown below.
  
I am wondering if the IP Services Adv software on that switch will allow that functionality? 

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Cisco Switching/Routing :: 6500 Bandwidth Limiting?

Apr 16, 2012

I have a 4500 and 6500 that I'd like to be able to limit the bandwidth of layer 2 switchports. So for instance I have all GB blades but certain servers I'd like only to have connections of about 5 Mb per second or 15 Mb per second etc.

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Cisco Switching/Routing :: Dynamic Bandwidth On A 2960S?

Dec 20, 2012

They have a /28 wan adress coming from ISP, that gives out 100Mbps, going to a Cisco 2960S switch (ver. 12.2) the switch is only holding 1 vlan. Connected to the 2960 are 3 firewalls/routers from other manifactors, each creating their own network. The customer wishes for a solution where each final FW/router gets minimum 33% and maximum 100% of the bandwidth, depending on how much each final Fw/router are in use.

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Cisco Wireless :: 1602e Effects Of Leaving AP Antenna Folded

Apr 28, 2013

We are deploying Aironet1602e AP's with the Aironet dual-band dipole antennas (air-ant-2524dw-r)  into a warehouse location with very low ceiling clearance.  To avoid head bumps and broken antennas, we are considering leaving the antennas in the folded position.  How much detrimental effect will this have on the signal strength and pattern?  

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Cisco Switching/Routing :: 4507 / Find Out Bandwidth Used On Interface?

Feb 7, 2012

Is there a way I can find out the amount of bandwidth i'm using on a particular interface on a 4507 cisco multi-layer switch? It is a gig port and I have it setup for monitoring (spanning) and I see packets being dropped in the "Total Output Drops" area. To me it looks like it must be exceeding the 1gig limit but I don't know a way to check to make sure. I also have the queueing strategy set to FIFO. 

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Cisco Switching/Routing :: Bandwidth Limit On Catalyst 2960?

Feb 9, 2012

I have ciscl catlyst 2960 8port switch, (flash:c2960-lanbasek9-mz.122-50.SE4/c2960-lanbasek9-mz.122-50.SE4.bin).
 
and in need to configure bandwidth limit for one of the port as a 1Mbps.

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Cisco Switching/Routing :: Sf300 - Vlan Bandwidth Management?

Oct 20, 2012

i have a small network with Polycom phones connected to the sf300 switch and have the pc's daisy chained via the second switch port on each phone. i have the pc traffic running on the default vlan 1 and the voice traffic running on the voice vlan 100. can i do bandwidth management on a vlan/port basis or is that not necessary. i want to ensure that the voice traffic is never impacted by the pc traffic on the same cable.

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Cisco Switching/Routing :: 1841 FE Maximum Bandwidth Support?

Jan 1, 2012

I need to know the Cisco 1841 Router FE Maximum Bandwidth Support and the Cisco 3825 Router GE Maximum Bandwidth Support. I cannot find this information in Cisco for these old devices.I would like to have the platform capability for all situation (only IP base, with QoS, with ACL, with encryption, etc.)

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Cisco Switching/Routing :: 3750 Switch Limiting Bandwidth To 3 M

Aug 8, 2011

I 3750 doesn't support "shape" command under policy map. How do I limit the bandwidth to 3 M? [code]

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Cisco Switching/Routing :: Sudden Burst In Bandwidth 2911

Aug 8, 2012

The layout of the equipments are as such,other equipment <--> 2911 Router <--> Ether-Switch/3925 Router <--> 7206 <--> Internet,During certain times at night, the 2911 exhibits cpu load, high packet loss and an increase in bandwidth of at least twice it's normal amount. this results in packet loss in all the other equipment. I am attempting to locate who was demanding such a high burst but so far the graphs display normal rates for all the other equipment.Because the 2911 demands an increase from the 7206, the 7206 is able to accommodate this as it still has balance BUT my other equipment that are connected to the 7206 takes a drop in bandwidth as well. the graph shows that when the 7206 bursts higher, the rest of my other links take a slight drop in bandwidth.Also, the graph from Ether-switch to 2911 indicates the bandwidth hike BUT the graph from 2911 to ether-switch does not display the same thing as due to the cpu load, the data is somehow not captured properly.

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Cisco Switching/Routing :: Nexus 7000 Bandwidth Control

Oct 14, 2012

On Nexus 7000s I want to limit bandwidth of particular IP. I can do this using proper configuratio of IP ACL, policy map and class map. But what if I dont have information on interface?  Can I apply bandwidth control for particular IP without knowing the interface?

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Cisco Switching/Routing :: 2900 - Restricting Bandwidth From A Particular Vlan

Jan 17, 2012

I have a 2900 router at branch office. This router has a 4 port switch card and two gigabyte ports. The gigabyte port is use for wan connection and the 4 port switch card is use for lan connection. I have two separate networks on my lan side. (network 1 and network 2)
 
I have assigned port 0,1 of the switch card to vlan1 for network 1 Ports 2,3 of the switch card is assigned vlan 20 for network 2
 
My problem is I would like to applied a bandwidth restriction for all data coming out from vlan20 capping same to 384 kb.
 
Note I do not want use QOS because this will only kickin when saturation occurs,

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Cisco Switching/Routing :: Bandwidth Limit On 2950 Switch?

Mar 25, 2012

I have cisco 2950 catalyst switch, verson IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(20)EA1a, RELEASE SOFTWARE (fc1)
 
So. for one of my port (FE 0/3) i need to put the bandwith limit 512 kbps, how to configure the above same.
 
Note:- I configured the below but no effect
 
1. interface FastEthernet0/3description * CONT TO B-CENTER *switchport access vlan 10switchport mode accessbandwidth 1024speed 10
 
2. and there is no srr bandwidth limit option for 2950, but the same is working for 2960.

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Cisco Switching/Routing :: 1720 With WIC 1 ENET And 20 Mbps Bandwidth

Feb 9, 2012

I have CISCO 1720 with WIC 1 ENET installed. My ISP provides 20 Mbps internet bandwidth
 
Do I need to change the Ethernet interface to 100? .. if yes, what interface model should I use?

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Cisco Switching/Routing :: ME 3400 Series Bandwidth Control?

Dec 19, 2012

I`m searching about bandwidth control down and upstream with vlans, i found many options but no one works good, follow some examples i have found on the internet

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Cisco Switching/Routing :: Cat 6509 - How Much Bandwidth For Class-default

Apr 5, 2012

I was looking at a problem where a traffic from certain sites have a restricted bandwidth, an ongoing problem for a year or so, apparently this throughput never exceeds around 25Mbps. My customer describes a situation where the end to end utilisation rises, eventually flat-lining at around 25Mbps. how many extra systems come on line, this traffic never exceeds this rate, and end users complain of poor responses.
 
During my investigation I found that one of the switches (Cat 6509) in the traffic path has a policer configured on a vlan interface, the policer has 3 sections for different traffic based on DSCP markers, and a default (unconfigured) class-default. Various people have had a poke about with this config over the years, with the result that all the traffic has the CoS and DSCP tags set to 0. All this traffic is hitting the class-default in the policer.The link that this traffic hits the Cat 6509 on is a 100Mbps link.
 
If I was designing this from scratch I'd probably configure a rate for the class-default.my question is, in the case where no specific configuration has been entered for the class-default, how much bandwidth is allocated to this class?

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Cisco Switching/Routing :: 1921 Router - Bandwidth Limitation

Oct 20, 2011

I have the following setup:
 
Cisco 1921 is my core router and connected to it is a 30 Mbit fiberline
VLAN1
VLAN2
 
Now, the thing is that i want VLAN2 to have a 5 Mbit bandwidth limit to Internet but full speed to VLAN1.
 
I have played around with Rate limit without success.
 
I also have access to cisco switches that can limit the bandwidth.

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Cisco Switching/Routing :: Idea For Limiting Bandwidth On 892F Router

Apr 10, 2013

Any idea for limiting bandwidth on cisco 892F router? We have 2 VLANs through our LAN and one must be limited upto 1Mbps or 512Kbps.

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Cisco Switching/Routing :: Asymmetric Bandwidth Limit On Cat2960 Or 3560?

Apr 9, 2013

I have the requirement to assign an asymmetric bandwith limit to each port on a switch (example: 4Mbps downlink, 1Mbps uplink). I've been searching and found the option to apply policers or srr-queue mechanism to achive this, however this only applies for one direction only as far as I know. Catalyst 2960 familiy is preferred, however if this is not possible, will possibly jump to the 3560X family.

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Cisco Switching/Routing :: 3945 / Using CBWFQ Before Reaching Interface Max Bandwidth

Jan 11, 2012

CBWFQ kicks in when the interface becomes congested and there is no available space in the queue but I need to find a solution to the scenario below:Im using a Gigabit interface on the 3945 Router that connects to the ISP. The ISP limits bandwidth to 60Mb so I need to make sure when I reach the limit of the 60Mb the router starts using the BW percentages defined in the policy-map using classes. any kind of traffic go out as it wants but as soon as the 60Mb limit is reached, the priorities defined by the traffic classes will kick in just as if the interface ran out of queues (as CBWFQ usually works).

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Cisco Switching/Routing :: 6509 Matching A Device To Bandwidth Consumption

Sep 18, 2012

My company is composed of three different campuses, all with a similar network topology. We currently are experiencing high bandwidth on our serial interface at one of the campuses in particular. The network is composed of about 20 VLANS routed internally using a Cisco 6509. Traffic to the outside is PAT’d by an ASA 5510 and then forwarded through our edge router interface. Each VLAN is PAT’d to a specific public address.Due to the PAT, how would you recommend determining what specific private addresses are consuming our resources on the serial interface. When I look at our NMS, it reports the public address, but that only narrows it down to a VLAN. For example, all the devices in VLAN 6 are translated to 146.34.118.245, and 146.34.11.245 is a top talker.

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Cisco Switching/Routing :: ASA 5520 / Can Reserve Some More Bandwidth For One Vlan Than Other Vlans

Jan 23, 2012

Currently, we have a Cisco router (28xx), ASA 5520, and a core switch 4500. We have different vlans. We also have Auto QoS running for our Cisco IP Phones.My manager just asked me to see if I can either reserve some certain bandwidth for one vlan, or give that vlan higher priority on internet traffic than the others.

1.) Anyway we can reserve some more bandwidth for one vlan than other vlans?

2.) If #1 cannot be done, how can we provide higher priority on the internet traffic to one vlan than the others?

3.) Is #1 or #2 the same config? If not, which one would be easier (without changing our current QoS settings)?

4.) If 1 or 2 can be done, which device I should config the settings on?

5.) This question may be duplicate, but do we need to reset our current QoS to achieve the goal?

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Cisco Switching/Routing :: Bandwidth Shaping Two Links With 2921 Router

Dec 12, 2012

I have 2 links to 2 different departments switch with an up link of 10mb. I want to guarantee that both departments get at least 5mb, but can use part of the other 5mb that not in use. Is this possible? 

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Cisco Switching/Routing :: 3750G - Iperf To Test Bandwidth / What Settings Are Best

Aug 3, 2012

I have configured a few 3750G switches with trunks and I want to test the throughput.  In your experience is iperf the best tool?  If so what settings do you use?

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Cisco Switching/Routing :: 3750Gs / MRTG Bandwidth Utilization Not Same As Sh Interface

Dec 19, 2011

The other day  3rd party supplier ran some stats on our Gigabit link between 2  Cisco catalyst 3750Gs.now the graphs produced showed only a Maximum output of about 100Mbps ( 5 minute intervals) yet when I do a show interface it shows a lot more always 150Mbps and more. So I did my own Perl script  doing an "sh interface" every minute and then graphed it, and the results were a lot different to the MRTG results.Questions: I know MRTG uses SNMP  to get the traffic  is there a bug in the SNMP, what OID does it use?does the "sh  interface" give the correct results?

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Cisco Switching/Routing :: 6509 QOS To Limit Bandwidth For Internet Traffic

Nov 5, 2012

We run a workers camp here and we currently have around 2500-3000 people using our 100MB internet pipe.  We are upgrading the pipe to 200MB soon but I still would like to limit how much bandwidth everyone is using.
 
We allow streaming media such as Netflix, youtube, apple TV and of course .So it gets full pretty fast.  We have QOS implemented although I wasn't here when it was done so I don't know a lot about it.  I would like to limit IPs to a certain amount of bandwidth. [code]

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