Can at 《Fastethernet(Wan) of router 》 do the qos?

aftersf · ‎01-02-2006

About Qos,I am on the serial the test is to control is OK, but in the test of Fastethernet/ ethernetn controls is Fail!

Does the Qos on serial/ ethernet ,have the dissimilarity?

configure have problems?

thanks...

IOS:

C2801-ADVIPSERVICESK9-M

ip cef

class-map match-any a

match access-group 110

class-map match-any b

match access-group 120

!

policy-map qos

class a

priority 96000

class b

bandwidth 6400

random-detect

!

interface FastEthernet0/0

bandwidth 102400

ip address 192.168.100.254 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet0/1

bandwidth 104800

ip address 192.168.5.250 255.255.255.0

max-reserved-bandwidth 100

ip route-cache policy

duplex auto

speed auto

!

access-list 110 permit ip host 192.168.100.2 host 192.168.5.1

access-list 120 permit ip host 192.168.100.3 host 192.168.5.1

access-list 130 permit ip any any

balajitvk · ‎01-02-2006

Hi,

i don't see that qos is applied anywhere. here u created the class and policy map but it not applied anywhere using servicepolicy command.

http://www.cisco.com/warp/public/105/qos_subint.html

aftersf · ‎01-03-2006

thanks a lot!

Sorry ,I'm first in Cisco-forum post problem.

Qos enables is to FastEthernet F0/1

FastEthernet F0/1

ip add 192.168.5.250 255.255.255.0

service-plicy output qos

pkhatri · ‎01-03-2006

Hi,

That policy looks okay. I'm not quite sure what your question is though. Does it not work ?

Pls do provide more info.

Regards,

Paresh.

mheusinger · ‎01-03-2006

Hi,

three comments.

First, do not set bandwidth on an interface larger than line speed! It will not work properly. You try to assure more bandwidth to your classes than you really have. So set bandwidth to 100000 and the sum of all classes to LESS than that. You usually need additional traffic like routing updates, Layer2 keepalives and so on, which should be reflected in your config. Also you might expect other traffic, which goes to class class-default.

Second, you give 96 MBit/s LLQ to class a. Doesn´t make too much sense I think.

What you probably want is something like

policy-map qos

class a

bandwidth 80000

class b

bandwidth 6400

random-detect

Third and most important one: In the situation you have all this will never be used. CBWFQ will ONLY be involved when the interface is overloaded (!), which you cannot achieve with two FastEthernet. 100 MBit/s in and 100 MBit/s out, no overload, so the policy-map will never be involved (unless your router creates considerable amount of traffic).

Hope this helps

Martin

balajitvk · ‎01-03-2006

Hi,

Bandwidh are specified in kbps and priority command specified in bps.

So out of 104Mbps you allocated 96Mbps to llq,

and 6.4Mbps to your class b

See whether this is ur intented allocation. and also provide what is ur test and what is not working. And also provide some output details where u fail.

aftersf · ‎01-03-2006

These, I am doing the test.

top.......

PC100.2----|_____F0/0 (router) F0/1____Serv 5.1

PC100.3----|

1. config = sample1 (shape average 2,000,000)

test 100.1 and 100.3 copy(upload) file(Size=10G) to 5.1.

100.2 To 5.1, the actual FTP deliver, the bandwidth is a 1600 kbits.

100.3 To 5.1, the actual FTP deliver, the bandwidth is a 400 kbits.

Everyone can see this test is successful.

2. But, when be like the cofig sample2( the shape average 20,000,000) to install thus.

test 100.1 and 100.3 copy(upload) file(Size=10G) to 5.1.

100.2 To 5.1, the actual FTP deliver, the bandwidth is a 10000 kbits.

100.3 To 5.1, the actual FTP deliver, the bandwidth is a 10000 kbits.

Everyone can see this test is a failure of.

Why would be thus?

I discover big in the test of the 10 Ms, is all a failure of,

Small in the test of the 10 Ms, all OK.

This is the test that I do

100M = no

20M =no

10M =no

4M =OK

2M =OK

1M =OK

Config Sample 1..........................................

Router#show run

Building configuration...

Current configuration : 1450 bytes

!

hostname Router

!

class-map match-all test

class-map match-any a

match access-group 110

class-map match-any b

match access-group 120

class-map match-any c

match access-group 130

!

policy-map qos

class a

set precedence 5

priority 1600

class b

set precedence 3

bandwidth 100

class c

bandwidth 100

set precedence 1

policy-map test

class c

shape average 2000000 (2M)

service-policy qos

!

no crypto isakmp ccm

!

interface FastEthernet0/0

ip address 192.168.100.254 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet0/1

bandwidth 2000

ip address 192.168.5.250 255.255.255.0

service-policy output test

duplex auto

speed auto

!

interface Serial0/3/0

no ip address

shutdown

clockrate 2000000

!

ip classless

ip route 0.0.0.0 0.0.0.0 192.168.5.254

!

ip http server

no ip http secure-server

!

access-list 110 permit ip host 192.168.100.2 host 192.168.5.1

access-list 120 permit ip host 192.168.100.3 host 192.168.5.1

access-list 130 permit ip any any

!

end

Router#

Config Samples 2...........................................

Router#show run

Building configuration...

Current configuration : 1458 bytes

hostname Router

!

class-map match-any a

match access-group 110

class-map match-any b

match access-group 120

class-map match-any c

match access-group 130

!

policy-map qos

class a

set precedence 5

bandwidth 16000

class b

bandwidth 1000

set precedence 3

class c

bandwidth 100

set precedence 1

policy-map test

class c

shape average 20000000 (20M)

service-policy qos

!

no crypto isakmp ccm

!

interface FastEthernet0/0

ip address 192.168.100.254 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet0/1

bandwidth 20000

ip address 192.168.5.250 255.255.255.0

max-reserved-bandwidth 100

service-policy output test

duplex auto

speed auto

!

interface Serial0/3/0

no ip address

shutdown

clockrate 2000000

!

ip classless

ip route 0.0.0.0 0.0.0.0 192.168.5.254

!

ip http server

no ip http secure-server

!

access-list 110 permit ip host 192.168.100.2 host 192.168.5.1

access-list 120 permit ip host 192.168.100.3 host 192.168.5.1

access-list 130 permit ip any any

!

Router#

pkhatri · ‎01-04-2006

Hi,

One important distinction I see between your two tests is that in the first case you've used the 'priority' statement for class a whereas in the second case, you have used the 'bandwidth' command.

In your second test, since the competing classes are both configured with the 'bandwidth' statement, the expected outcome would be the splitting of traffic between them in a proportion equivalent to the bandwidths assigned to then. However, you have oberved that this is not the case. It may be interesting to see what your offered rate for each class is. Can yo capture the output of 'show policy-map interface fast0/1' while you are running the test ?

regards,

Paresh.

mheusinger · ‎01-04-2006

Hi,

what is the measured throughput WITHOUT any QoS in place? are you sure that you can reliably produce a throughput of over 20 MBit/s with your setup?

Martin

aftersf · ‎01-04-2006

hi.all

i have policy-map qos Change the bandwidth to priority. but problem same.

i have test,from 100.2 and 100.3 send big-file(1G) to IP 5.1

(100.3&100.2)------(100M-Switch)----(f0 Qos-Route f1)-----(Server 5.1)

list is show policy-map at 2/20M .

test 2M...........................

Router#show policy-map int f 0/1

FastEthernet0/1

Service-policy output: test

Class-map: c (match-all)

99825 packets, 107035497 bytes

5 minute offered rate 1581000 bps, drop rate 6000 bps

Match: access-group 130

Traffic Shaping

Target/Average Byte Sustain Excess Interval Increment

Rate Limit bits/int bits/int (ms) (bytes)

2000000/2000000 12500 50000 50000 25 6250

Adapt Queue Packets Bytes Packets Bytes Shaping

Active Depth Delayed Delayed Active

- 10 99047 106319890 96111 102656347 yes

Service-policy : qos

Class-map: a (match-any)

81454 packets, 87785600 bytes

5 minute offered rate 1289000 bps, drop rate 6000 bps

Match: access-group 110

81454 packets, 87785600 bytes

5 minute rate 1289000 bps

QoS Set

precedence 5

Packets marked 81734

Queueing

Strict Priority

Output Queue: Conversation 72

Bandwidth 1600 (kbps) Burst 40000 (Bytes)

(pkts matched/bytes matched) 78848/84467024

(total drops/bytes drops) 713/701826

Class-map: b (match-any)

17775 packets, 19142173 bytes

5 minute offered rate 328000 bps, drop rate 0 bps

Match: access-group 120

17775 packets, 19142173 bytes

5 minute rate 328000 bps

QoS Set

precedence 3

Packets marked 17859

Queueing

Output Queue: Conversation 73

Bandwidth 200 (kbps) Max Threshold 64 (packets)

(pkts matched/bytes matched) 17855/19221177

(depth/total drops/no-buffer drops) 8/0/0

Class-map: class-default (match-any)

596 packets, 107724 bytes

5 minute offered rate 0 bps, drop rate 0 bps

Match: any

Class-map: class-default (match-any)

51 packets, 5142 bytes

5 minute offered rate 0 bps, drop rate 0 bps

Match: any

Router#

aftersf · ‎01-04-2006

test 20M...........................

Router#show policy-map int f 0/1

FastEthernet0/1

Service-policy output: test

Class-map: c (match-all)

2174403 packets, 2360008455 bytes

5 minute offered rate 19567000 bps, drop rate 0 bps

Match: access-group 130

Traffic Shaping

Target/Average Byte Sustain Excess Interval Increment

Rate Limit bits/int bits/int (ms) (bytes)

20000000/20000000 125000 500000 500000 25 62500

Adapt Queue Packets Bytes Packets Bytes Shaping

Active Depth Delayed Delayed Active

- 8 1493312 1613424061 324176 336116888 yes

Service-policy : qos

Class-map: a (match-any)

794601 packets, 862705210 bytes

5 minute offered rate 9276000 bps, drop rate 0 bps

Match: access-group 110

794601 packets, 862705210 bytes

5 minute rate 9276000 bps

QoS Set

precedence 5

Packets marked 795985

Queueing

Strict Priority

Output Queue: Conversation 264

Bandwidth 16000 (kbps) Burst 400000 (Bytes)

(pkts matched/bytes matched) 166912/176904652

(total drops/bytes drops) 0/0

Class-map: b (match-any)

687684 packets, 742676728 bytes

5 minute offered rate 8614000 bps, drop rate 0 bps

Match: access-group 120

687684 packets, 742676728 bytes

5 minute rate 8614000 bps

QoS Set

precedence 3

Packets marked 689128

Queueing

Output Queue: Conversation 265

Bandwidth 2000 (kbps) Max Threshold 64 (packets)

(pkts matched/bytes matched) 153137/158062096

(depth/total drops/no-buffer drops) 7/0/0

Class-map: class-default (match-any)

3934 packets, 362549 bytes

5 minute offered rate 3000 bps, drop rate 0 bps

Match: any

Class-map: class-default (match-any)

195 packets, 18519 bytes

5 minute offered rate 0 bps, drop rate 0 bps

Match: any

Router#