Possible to rate limit console input?

I built a tool that allows us to input device information such as IP, VLAN, etc, etc and this tool builds the entire config file that can be pasted into a switch/router. The problem is that when I start getting down near the banner and motd sections, the console cannot keep up with the input and it drops lines of input.
Is there a way to rate limit the input when large configs are pasted into con 0?

Similar Messages

Rate-limit on eompls VCs

hello guys,
is it possible to rate limit an eompls circuit between to PE (rate-limit per VC) ?

Yes you can try with MQC. Have a class-map which matches any traffic and police the bandwidth
policy-map l2test
class l2test
police 2048000 c t e d
class l2test
match any
Let me know if it works

Is possible to give a 5V input to the umi 7764 connector blick for the limit switch inputs

I am using a umi7764 connector block for my 7344 controller. My motion control hardware provides me a 5V output in case the limit switches are enabled. But the umi 7764 connector block connections for the limit swithces are in such a way that it doesnt get any input, instead it has to be directly connected to the limit switches.Is there any way to come around this problem so that the limit switch inputs read the 5v given out by my motion control appplcation

If your drive has individual outputs for the forward, reverse, and home switches, then you could connect these to the their respective terminals on the UMI. You will need to either disable limit functionality on one component (controller or drive) or make sure the limit behavior for the devices does not conflict with each other. It probably is best if the controller handles the limits, but this will depend on your application.
If the drive only has one output to indicate that one of the switches has been activated, then you have fewer options. In this case, you should probably just use the limit protection on the drive and poll that single output with another input on the UMI.
Regards,
Brent R.
Applications Engineer
National Instruments

Can I rate-limit on the sub-interface in cisco asr 1013?

Hi,
I am looking for the command of rate-limit on a sub-interface in cisco asr 1013.
Cisco IOS Software, IOS-XE Software (X86_64_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.2(2)S, RELEASE SOFTWARE (fc1)
IOS XE Version: 03.06.00.S
Please let me know if it is possible in cisco asr 1013. If yes then what are the commands.
Zobair

The ASR no longer supports the rate-limit command, but it does support the same functionality in a QoS policy.
Please find a sample configuration -
ASR1004(config)#policy-map test
ASR1004(config-pmap)#class class-default
ASR1004(config-pmap-c)#shape average 10000
Applying for both ingress and egress : -
ASR1004(config)#int gig1/1/0
ASR1004(config-if)#service-policy output test
or
ASR1004(config-if)#service-policy input test

Service-Policy Or Bandwidth Rate Limit for IP

Hii Netpros,
Is this possible to configure the Service Policy(for Bandwidth) or Bandwidth Rate Limit for Single IP. For eg: If we want to configure the Service Policy(for Bandwidth) or Bandwidth Rate Limit of 2Mb for only IP " 10.10.10.3" on network i.e the Host or device which is configured with this IP can access upto 2Mb only.
Actual Network :-   We need this to configure this for wireless customers, Actually we have created one Vlan 2 (IP:- 10.10.10.1/29 @ our end router) , 10.10.10.2 on Basestation wiresss device (Vlan 2 allowed on this wireless device) and this wireless device is working as point to multipoint wireless. i.e 2 or more then 2 wireless customers or last mile will connect to this basestation wireless. Wireless customer-1 is 10.10.10.3 (2Mb bandwidth) and Wireless Customer-2 10.10.10.4 (512Kb).
Hence we require to limit the bandwidth for this 2 wireless customers having different bandwidth. how to acheive & control bandwidth @ our end router for them. please suggest.
Thanks

This topic is probably better suited in another Infrastructure forum, but I suppose it depends on which features are supported by your Cisco hardware and software. This doc discusses a variety of options:
http://www.cisco.com/en/US/docs/ios/12_2/qos/configuration/guide/qcfpolsh.html
For example, with the older CAR (committed access rate) approach:
interface FastEthernet5/0
     rate-limit input access-group 101 20000000 [normal burst size] [excess burst size] conform-action transmit exceed-action drop
     rate-limit input access-group 102 5120000 [normal burst size] [excess burst size] conform-action transmit exceed-action drop
access-list 101 permit ip 10.10.10.3 0.0.0.0
access-list 102 permit ip 10.10.10.4 0.0.0.0
You can observe CAR in action with "show interfaces fa5/0 rate-limit" for example.

Bandwidth Rate-Limit -w- WWR-Queue

How would one convert a layer-2 port's "switchport rate-limit" bandwidth statement, on a 6509 -w- WS-X6748-SFP ports, to a routed/layer-3 "wrr-queue" bandwidth statement policy? Basically trying to hard-core the port's speed to 20MB. Current/tested layer-2 port bandwidth setting:
rate-limit input 20000000 5000 5000 conform-action transmit exceed-action drop
rate-limit output 20000000 5000 5000 conform-action transmit exceed-action drop
Got lost in how to use/configure all WRR's four queues... just need to limit the port's bandwidth to 20MB. Any suggestions would be appreciated.
Thanks, Kevin

1) Enabled QoS globally...
2960(config)#mls qos
2) Configure an ACL to define the matched traffic...
2960(config)#access-list 111 permit ip any any
3) Configure a class map for the matched traffic...
2960(config)#class-map traffic
2960(config-cmap)#match access 111
4) Configure a policy-map to define action...
2960(config)#policy-map Control
2960(config-pmap)#class traffic
2960(config-pmap-c)#police 10000000 8000 exceed-action drop
5) Attached the policy-map to the interface.
a) Example
-In this case, I'll attach the policy map to port_1....
2960(config)#int fa0/1
2960(config-if)#service-policy input Control
>>>>>> This will rate-limit traffic coming from the PC

How to rate-limit different IP's entering/leaving an Interface?

Hi There,
We are an ISP and have an interconnect with say Provider A. Customers of ours use Provider A for layer 2 and us for Layer 3 (IP/Internet).
Customer #1 to #100 --- (10Mb) --> Provider A ---> ISP ---> Internet
We'd like to rate limit some customers to 2mb/sec (in/out) on our end because at present they have a 10mb/sec connection coming from Provider A.
The config we use to peer with Provider A is this:
interface GigabitEthernet0/1.120
description Interconnect with Provider A
bandwidth 400000
encapsulation dot1Q 120
ip address A.B.C.1 255.255.255.252
Customers of ours are simply routed out through this interface like so:
Customer #1:
ip route W.X.Y.Z. 255.255.255.255 A.B.C.2
Customer #2:
ip route J.K.L.M 255.255.255.255 A.B.C.2
Is there a way to rate limit both these customers without needing to create a separate class map for each like so:
class-map match-all CUSTOMER-1-2MB
match access-group name ACL-CUSTOMER-1
class-map match-all CUSTOMER-2-2MB
match access-group name ACL-CUSTOMER-2
policy-map POLICY-RATE-LIMIT
class CUSTOMER-1-2MB
police 2000000 375000 750000
class CUSTOMER-2-2MB
police 2000000 375000 750000
interface GigabitEthernet0/1.120
service-policy input POLICY-RATE-LIMIT
service-policy output POLICY-RATE-LIMIT
I've done this in the lab and I know it works, so Customer #1 ends up with 2mb/sec and Customer #2 gets 2mb/sec too.
But in production, I'm talking about 100's of customers which we simply route out of this interface. I can't imagine having to configure 100's of class maps and policy maps for each customer to rate limit them to 2mb/sec like in the config above.
Is there a better way to do this on the router???
Thanks.
Andy

Hi All,
Doing what Laurent suggested works great. We are able to rate-limit the desired customers by having a separate class-map for each customer that needs to be rate limited under the single policy-map.
But now we're finding that the CPU utilization has increased by 20% because of this.
We're pushing about 400M through this interface and rate limiting 7 customers on it.
Given the large traffic flow through this interface (400M), is it common to see an increase in CPU utilisation by 20%???
When we take the service-policy off the interface, sure enough the CPU drops by 20%.
Here's the MQC applied:
interface GigabitEthernet0/1.120
bandwidth 400000
encapsulation dot1Q 120
ip address 203.17.x.x 255.255.255.252
ip flow ingress
service-policy input RATE-LIMIT
service-policy output RATE-LIMIT
class-map match-all CLASS-TCS-200338
description Customer #1 rate limited to 4mb/sec
match access-group name ACL-TCS-200338
class-map match-all CLASS-TCS-200208
description Customer #2 rate limited to 2mb/sec
match access-group name ACL-TCS-200208
class-map match-all CLASS-TCS-205593
description Customer #3 rate limited to 3mb/sec
match access-group name ACL-TCS-205593
class-map match-all CLASS-TCS-205679
description Customer #4 rate limited to 4mb/sec
match access-group name ACL-TCS-205679
class-map match-all CLASS-TCS-200441
description Customer #5 rate limited to 4mb/sec
match access-group name ACL-TCS-200441
class-map match-all CLASS-TCS-200005
description Customer #6 rate limited to 2mb/sec
match access-group name ACL-TCS-200005
class-map match-all CLASS-TCS-205560
description Customer #7 rate limited to 4mb/sec
match access-group name ACL-TCS-205560
policy-map RATE-LIMIT
class CLASS-TCS-200005
police 2000000 375000 750000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-200208
police 2000000 375000 750000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-200441
police 4000000 750000 1500000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-200338
police 4000000 750000 1500000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-205679
police 4000000 750000 1500000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-205560
police 4000000 750000 1500000 conform-action transmit exceed-action transmit violate-action drop
class CLASS-TCS-205593
police 3000000 562500 1125000 conform-action transmit exceed-action transmit violate-action drop
Is this the correct behaviour of applying the service-policy to the interface whereby the CPU increases by 20% or can the MQC be fine tuned to have less of an impact on the CPU?
Is the router just overloaded, taking into account it's only pushing about 400M? Should it be able to do more than this??
Thanks.
Andy

WLC user rate limit on guest ssid anchor controller

Hi,
I have been looking through the forums & some cisco documents but not found a good example similar to what I am seeking to do so now I am turning to the expertise of my peers.
We have been deploying 3502 APs remotely to locations with full T1s that backhaul to where I sit at HQ.
Both the foreign and anchor controller are here at my location.
I am seeking to rate limit per user the bandwidth each client will get on the guest internet ssid.
As you know this traffic is encapsulated in capwap between the AP and the controller so I cant use a standard ACL on the switch or router.
We are trying to keep the guest internet access usage in check on the T1 at any given site so the other ssid's & local lan traffic is not overly competing for the bandwidth.
I found the place to edit the default profiles in the controller but the documentation really isnt clear on best practices.
So I put it to you my fellow wireless engineers to suggest how you are implementing bandwidth management on your wireless guest internet.
Thanks guys!
Oh and here is my hardware & software levels.
5508wlc - forgeign
4402wlc - anchor
Software Version
7.0.230.0

Amjad,
Thank you for taking the time to respond as well as the document link.
It was pretty clear on the steps and what it would impact.
Two things that push me for a different solution (assuming their is one).
Note The values that you configure for the per-user bandwidth contracts affect only the amount of bandwidth going downstream (from the access point to the wireless client). They do not affect the bandwidth for upstream traffic (from the client to the access point).
As you can see from the above note taken out of the linked document the roll based rate limit doesnt really rate limit the T1 traffic any guest user consumes it only limits usage from the AP down to the client.
#1 I am looking for a solution that limits the users up & down streams (if possible) & also before it leaves the AP for the T1.
The idea is to limit WAN utilization.
#2 I read in the forums here others asking about the "user role" and saw some comments saying it is not considered "best practice" to use user roles.
Let me clarify that our guest ssid's are using the http webpage pass through for authentication and it is really only the tic mark to indicate they understand the terms and conditions of using our internet as a guest service. No actual user accounts are used on the guest ssid's.
***One last question about this and any other changes***
Will any change I make be on the "Foreign, Anchor" or both Controllers?

Rate-limit command 3560 does it exist?

I have just come across a command in my router IOS which might be useful too me. I was wondering if the following command is available on a 3560 Switch. I don't see it on my 3550 but the IOS is quite old. I don't have a 3560 avaiable currently to check.
Config t > int vlan x > rate-limit input/output
does this exist on the 3560? I am also interest if it does in the Bits per second range and if available input/output.
Thanks for any help

Hello,
what kind of feature are you looking for?
CAR?
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_command_reference_chapter09186a0080087f26.html#wp1037428
For command list check the following link:
Catalyst 3560 Switch Command Reference, Rel. 12.2(25)SEE
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3560/12225see/cr/index.htm
For QOS configs:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3560/12225see/scg/swqos.htm
If you need to rate limit traffic on an interface check:
Limiting the Bandwidth on an Egress Interface
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3560/12225see/scg/swqos.htm#wp1253412
Hope this help a bit,
if it does, please rate this post.
Vlad

Bandwidth Management(Rate Limit) Using QoS Policies

Hello,
I need some advice. We have an ASA 5525 running version 8.6(1)2 and a 10 MG pipe. I have execs that want to limit bandwidth on users for stuff like youtube, stream media, and downloads. I found the article on ‘Bandwidth Management(Rate Limit) Using QoS Policies’ so it appears our firewall can do what we want. I’m not a cisco person. My knowledge is limited when it comes to configuration – that’s why we have SmartNet :). The advice I need is what to ask for, so to speak, when I put a case in. Can bandwidth be limited on end users and/or can they limit the ‘bandwidth rate limit’ to just youtube, steaming media, and downloads? If so, what should the limit be? and I’m assume this would be for ‘incoming’ traffic only? we’re running into some bandwidth hogs – usually youtube and/or streaming media. We have a Barracuda web filter which we’ve used to block and monitor activity but I simply do not have time to babysit this all day. I should also mention we do have critical data running up and down the pipe; such as credit card processing, DB replication between in house DB and hosted website, TPCx and EDI, FTP, and such that we don’t want restricted.
Need input please,
Thanks,
D

Hello,
That's a question that you as the network admin of that organization could answer.
How much traffic for business purposes must travel via HTTP/HTTPS?
How much bandwith are you willing to provide to this 2 protocols?
Those are the kind of answers you need to answer before setting the number
Regards
Remember to rate all of the helpful posts, Just click the 5 stars at the left of each post
Julio

User based rate limit

Hi,
Iam looking for a way to Rate Limit - Vlan interfaces,
Somting like this .. or do I need to change the service-policy to rate-limit for it to work
Interface Vlan2
Description Customer-A
service-policy input police-customerA-traffic
service-policy output police-customerA-traffic
ip address 10.10.10.1 255.255.255.252
Interface Vlan3
Description Customer-B
service-policy input police-customerB-traffic
service-policy output police-customerB-traffic
ip address 10.10.11.1 255.255.255.252
Interface Vlan4
Description Customer-C
service-policy input police-customerC-traffic
service-policy output police-customerC-traffic
ip address 10.10.12.1 255.255.255.252
Interface GigabitEthernet3/1
Description Trunk - Customer-A - Customer-C
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2,4
switchport mode trunk
Interface GigabitEthernet3/1
Description Trunk - Customer-B
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 3
switchport mode trunk
Is that posible ??, or do i need to make user based rate limit based on Source / destination adresses, and move the service policy to the physical interface ??
Hardware in this case Cisco 7609 running MPLS
Thanks in advance.
/Peter

Can you explain your network topology a little?. This would help me to understand your network setup and help you in this issue accordingly.

Wireless rate limit

Hi,
My network infrastructure as simple as following:
LAN(edge switches 3560).......>Aggregator switch(3750)........>Firewall(ASA 5510)........>Router.......>Internet
I define 3 wireless VLANs with 3 SSIDs on the Aggregator switch(3750):
1. one SSID for company employees.
2. one SSID for wireless IP phones.
3. one SSID for company guest which access only internet.
And the wireless APs connected to the LAN(edge switches) direct with trunks.
My question is how to apply a rate limit for SSID for company guest to access internet with B.W. of 128kbps only.
I tried policy map to be applied on the aggregator switch(3750) on the VLAN interface, but, it is not working.
So, any suggested help, please.

Hi Ahmed:
With autonomous APs, rate limiting isn't possible. All the autonomous APs support is QoS and that's pretty iffy. At the core of the issue, you're dealing with radio waves and which ones arrive at the radio first, and who was prevented from talking because someone else was talking. Dealing with these QoS and traffic shaping/policing issues are really tough with wireless because the transmission medium itself is unreliable.
The "Configuring QoS" chapter of the autonomous AP configuration guide
http://tools.cisco.com/squish/5aCf1
will show you how you can map priority tagging to an SSID so that in that path from radio receiver to outbound on the fastethernet interface toward the rest of the network, you can control which SSID's packets get up into the network first, but the reverse path is a different story. Because the wireless medium is half-duplex acknowledged, you can have a high priority packet out there on the radio interface trying to be beamed out to the client, and if the client isn't sending their ACK or what have you, it's going to sit and retry until its 63 retries are done before it gets out of the way to let the next high priority packet have a turn at getting transmitted out.
Once the traffic gets past the edge switch, the fact that it was at one time wireless is irrelevant. You should look at it as a general "rate limiting one VLAN's traffic over another" and check with the routing protocols or traffic shaping folks.
Sincerely,
Rollin Kibbe
Network Management Systems Team

Configuring rate-limit in switch 6500

Good morning gentlemen
Consider a 6509E (supervisor 720 3B) switch with many interface VLANs configured, one of each related to each customer. Each interface VLAN had configured a rate-limit input and output configured representing the maximum bandwidth permitted for the customer.
I could configured that way using the old IOS s72033-ipservicesk9_wan-mz.122-18.SXF7.
Last weekend I had to upgrade that IOS to s72033-ipservicesk9_wan-mz.122-33.SXJ7. All rate-limits in VLAN interfaces disappeared, probably not supported in this new version.
Now, what's you recommendation to perform the same in this IOS version?...I only found the policy-map/service-policy way.
Follow my questions:
1 - "mls qos" is globally disabled. Should I configure globally or by interface VLAN?... Expected any impact?
I believe that only need "police" for QOS. No need for any other kind of QOS.
2 - Should I enable "mls qos vlan-based" for each physical layer 2 port connected to that switch related to each interface vlan with police?
Expected only one physical port (or port-channel) for each customer (and each VLAN) connected to a switch.
Thank you and regards
Christian

Interesting that I have just upgraded the IOS to the last version 12 release.
I think that for the reason that we are facing high CPU usage for "IP Input" process, something related to mls/cef is not tunned.
Anyone has any idea regarding the configuration presented?
Regards
Christian

Possible sampling rates of a PCI-MIO-16E-1 with DASYLab

Hello!
I'm using a PCI-MIO-16E-1 DAQ. It's maximum sample rate is 1.25MS/s
My questions:
- What does maximum output rate of 1MS/s mean? I need 3 channels at 400kS/s.
- What are the possible sample rates? Can I use e.g. 3 channels with 105 kS/s each?
- If not what are the fixed sample rates of that card?
Thanks a lot

Hi matadler,
The E-Series boards have one DAC for each output, therefore you can use the full output rate with all output channels.
The PCI-6070 (formerly known as PCI-MIO-16E-1) has 2 analog outputs, which can be used at up to 1 MS/s. If you need more analog outputs, you need another board.
Analog inputs on the E-Series boards are multiplexed. This means you have only one ADC which is used for all analog input channels. You have to divide the maximum sampling rate by the number of channels you actually use.
For your application, this means you can use up to 416kS/s with 3 channels. There are no fixed sample rates on the board, so it's no problem to use 105kS/S.
Regards,
Richard H.
National Instruments

Rate-limit Burst explanation

Hi All - I need your help to understand the Burst value in the Rate-Limit
Example: rate-limit input access-group 101 20000000 24000 32000
I understand the above configuration limit the traffic to 20Mbps. How to calculate the Burst-Normal (as per example above 24000 Bytes) and Burst-Max(as per above example 32000 Bytes). What is the logic for arriving the Burst-Normal & Burst-Max?
Thanks in advance
SAIRAM

Hi Sairam,
below are definitions of few terms which are involved here
CIR : committed information rate, in bits per second, defines the rate defined in the traffic contract.
Tc : Time interval,measured in miliseconds, over which the committed burst (Bc) can be sent.
Bc : Committed burst size,measured in bits. This is the amount of traffic that can be sent over the interval Tc.
Be : Excess burst size, in bits. This is number of bits beyond Bc that can sent after a period of inactivity.
Formula to calculate Bc is
Bc = CIR*Tc
Now to understand Bc and Tc, say suppose you have applied 20mbps rate-limit on a 100mbps fastethernet link. Now link can send data (bits) with clock-rate only which is 100mbps so to achieve 20mbps rate on that link router needs to send traffic for 1/5th of a sec and remain idle for 4/5th of a second. 1/5th of sec is 200 msec. If router will send traffic for 200msec and not sending traffic for next 800msec, it can achieve rate of 20mbps but a packet arrived at 199th sec will need to wait for 800msec and this will add unnecessary latency to the packet. To avoid this, router sends few bits for short duration and then does not send for some duration. For the period it sends traffic is called Tc value. and the number of bytes it can send during that interval is called Bc value. So CIR = Bc/Tc (bits per interval).
Now we dont have option to configure Tc but we can configure CIR and Bc, and Tc will automatically be calculated. If we do not configure Bc then router takes default Tc of 125ms and calculates the Bc.
What value to choose for Bc
If we configure Bc too large then Tc will go high for same CIR and this may cause delay or jitter for delay sensitive traffic. For delay sensitive traffic cisco recommends to have Tc 10ms or less.
If i calculate Tc in the given example, it is coming as 9.6ms which is close to 10ms that is why Bc is set as 24000.
Tc = Bc/CIR
= 24000(bytes)/20000000(bits/sec)
= 192000(bits)/20000(bits/ms)
= 192/20
= 9.6 msec
Now Be is to give extra bandwidth for small interval(Tc) to cater some bursty traffic. Assume there is a bucket which gets filled with Bc amount of token in every Tc interval and router can send traffic if there is sufficient amount of token available in the bucket, equal to the packet size. After forwarding packet router reduces same amount of token from the bucket. Size of bucket is also equal to Bc which means if there is no traffic for Tc interval, bucket can not hold more token. Be is to increase the size of bucket to (Bc + Be). Now in every Tc interval bucket will be filled with Bc token and if there is a period of inactivity then in next interval bucket can be filled with extra Bc amount of token till it reaches to (Bc + Be) and if there is any bursty traffic (more than Bc) same can be adjusted. So for a very small period router may send traffic with more rate (higher than CIR, since sending Bc+Be in Tc interval) but over a period does not cross CIR.
You can also use below "Ask the expert" event for QoS to further queries related to QoS.
https://supportforums.cisco.com/discussion/12259571/ask-expert-quality-service-qos-cisco-ios-routers
Please dont forget to rate post if it has been helpful.
Regards,
Akash

Possible to rate limit console input?

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