Reserve Bandwidth for a vlan

Hi all,
could someone tell me if it is possible to reserve a precise amount of bandwidth for a given vlan on the Aironet1240AG ? If yes, could someone tell me how ?
Thanks in advance

Hi,
It seems that it is not possible to reserve a bandwidth for a specific VLAN. these APs are layer 2 devices with limited capabiltites.

Similar Messages

Max-reserved-bandwidth 100% for the interface

According to CCO as following text, the remaining 25 percent of bandwidth is used for overhead, including Layer 2 overhead, control traffic, and best-effort traffic. I want to know why cisco choose 25 percent. why not 30% or 20%?
If I config the max-reserved-bandwidth 100% for the interface, does it will effect the routing protocol? also effect the network conectivity?
thanks for your answer
=======
Usage Guidelines for max-reserved-bandwidth
The sum of all bandwidth allocation on an interface should not exceed 75 percent of the available bandwidth on an interface. The remaining 25 percent of bandwidth is used for overhead, including Layer 2 overhead, control traffic, and best-effort traffic.
If you need to allocate more than 75 percent for RSVP, CBWFQ, LLQ, IP RTP Priority, Frame Relay IP RTP Priority, and Frame Relay PIPQ, you can use the max-reserved-bandwidth command. The percent argument specifies the maximum percentage of the total interface bandwidth that can be used.
If you do use the max-reserved-bandwidth command, make sure that not too much bandwidth is taken away from best-effort and control traffic.
The max-reserved-bandwidth command is intended for use on main interfaces only; it has no effect on virtual circuits (VCs) or ATM permanent virtual circuits (PVCs).

Kevin,
this is the wrong group for this question.
Gilles.

Available bandwindth and 'max-reserved bandwidth'

Is the max-reserved bandwidth only important when working with Qos classes and the bandwidth statement? Is the default 75% available bandwidth only used then?
In other words if I have a 100MB link with a service policy applied for Voice, Call-Control and video. After that I notice the available bandwidth on thie 100MB link is 61280 kilobits/sec.
If I put in a 'max-reserved bandwidth 95' would I reclaim another 20MB of bandwidth for the class-default? Would leaving 5% on the 100MB link for routing and other stuff be acceptable?
Here is the config and show commands:
class-map match-any Call-Control
match ip dscp cs3
match ip dscp af31
class-map match-any Video
match ip dscp af41
class-map match-any Voice
match ip dscp ef
policy-map QOS_classes_to_ACN
class Voice
priority 10000
class Call-Control
bandwidth 500
class Video
bandwidth 3220
class class-default
fair-queue
random-detect
interface FastEthernet6/0
description 100MB Link to ACN
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
ip route-cache flow
no ip mroute-cache
load-interval 30
duplex full
speed 100
service-policy output QOS_classes_to_ACN
ROC-RT7206-QMOE#sh int f6/0
FastEthernet6/0 is up, line protocol is up
Hardware is i82543 (Livengood), address is 00b0.4a28.3ca8 (bia 00b0.4a28.3ca8)
Description: 100MB Link to ACN
Internet address is xxx.xxx.xxx.xxx/xx
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 183/255, rxload 21/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:03, output 00:00:00, output hang never
Last clearing of "show interface" counters 01:13:30
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 5211742
Queueing strategy: Class-based queueing
Output queue: 70/1000/64/5211742 (size/max total/threshold/drops)
Conversations 2/35/256 (active/max active/max total)
Reserved Conversations 2/2 (allocated/max allocated)
Available Bandwidth 61280 kilobits/sec <--- Available bandwidth
30 second input rate 8615000 bits/sec, 6860 packets/sec
30 second output rate 71788000 bits/sec, 7484 packets/sec
31692173 packets input, 4263195179 bytes
Received 1204 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
34536300 packets output, 2513155446 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

Here is the output of show policy-pam int:
ROC-RT7206-QMOE#sh policy-map int f6/0
FastEthernet6/0
Service-policy output: QOS_classes_to_ACN
Class-map: Voice (match-any)
3417571 packets, 934178998 bytes
30 second offered rate 1722000 bps, drop rate 0 bps
Match: ip dscp ef (46)
3417571 packets, 934178998 bytes
30 second rate 1722000 bps
Queueing
Strict Priority
Output Queue: Conversation 264
Bandwidth 10000 (kbps) Burst 250000 (Bytes)
(pkts matched/bytes matched) 1908656/521903140
(total drops/bytes drops) 0/0
Class-map: Call-Control (match-any)
615085 packets, 48926098 bytes
30 second offered rate 84000 bps, drop rate 0 bps
Match: ip dscp cs3 (24)
588857 packets, 47299978 bytes
30 second rate 81000 bps
Match: ip dscp af31 (26)
26228 packets, 1626120 bytes
30 second rate 2000 bps
Queueing
Output Queue: Conversation 265
Bandwidth 500 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 337953/26882724
(depth/total drops/no-buffer drops) 0/0/0
Class-map: Video (match-any)
146136 packets, 82165408 bytes
30 second offered rate 90000 bps, drop rate 0 bps
Match: ip dscp af41 (34)
146136 packets, 82165408 bytes
30 second rate 90000 bps
Queueing
Output Queue: Conversation 266
Bandwidth 3220 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 81687/45950190
(depth/total drops/no-buffer drops) 0/0/0
Class-map: class-default (match-any)
35227089 packets, 47492000208 bytes
30 second offered rate 87718000 bps, drop rate 14714000 bps
Match: any
Queueing
Flow Based Fair Queueing
Maximum Number of Hashed Queues 256
(total queued/total drops/no-buffer drops) 0/5171786/0
exponential weight: 9
class Transmitted Random drop Tail drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
0 30181523/39910255774 1297726/1944176143 3893194/5836883998 20 40 1/10
1 0/0 0/0 0/0 22 40 1/10
2 0/0 0/0 0/0 24 40 1/10
3 0/0 0/0 0/0 26 40 1/10
4 0/0 0/0 0/0 28 40 1/10
5 0/0 0/0 0/0 30 40 1/10
6 1213/88749 0/0 0/0 32 40 1/10
7 0/0 0/0 0/0 34 40 1/10
rsvp 0/0 0/0 0/0 36 40 1/10

Bandwidth for VoIP H323 signaling channels

Hallo
I have a VoIp application between two LANs connected by FR WAN.
I use two cisco1751 routers as gateway.
I would use LLQ and other QoS features on cisco gateway to prioritise VoIP streams.
access-list 100 permit udp host 192.168.1.1 host 192.168.2.2 range 16384 32767
access-list 101 permit tcp host 192.168.1.1 host 192.168.2.2 eq 1720
class-map voip-media
match access-group 100
exit
class-map voip-signaling
match access-group 101
exit
policy-map qos-voip
class voip-media
priority 12 (* number of VoIP channels)
class voip-signaling
bandwidth XXX
class class-default
fair-queue
Using g.729a codec and vad.....I would reserve 12kbps for each VoIp media channel (RTP) in the strict priority queue.
How many bandwith must I give to VoIP signaling (RTCP, H225) for each voIp channel ?
thankyou

Tejas:
I have a similar problem, I have voice over IP running over frame relay between a 7500 & a 3600 router. Doing DTS on the 7500 side. Everything works fine but when I try to use rtp compression to save some bandwith..it seems like "even though the command for rtp header-compresion are accepted on the interface configuration" Compression is actually not happening. Monitoring through EMCOM..sindle takes about 32K..i am suspecting that due to DTS on 7500 side..I am missing something....
Is there any good url ..you can suggest me....As far as enabling rtp header compression is concerned it is very straight forward...the requirement is that ditsributed CEF be enabled globally & interface level which I am already doing...
regards

Max-reserved bandwidth confusion

Hi all,
Can someone please help me to understand bandwidth reservation for CBWFQ.
By default you cannot allocate more than 75% of the interface bandwidth to your classes. My question is what is the point? theoretically it is reserved for your routing protocols etc.etc. but in reality if the interface is saturated isn't that extra 25% used by whatever traffic anyway? it not like you guarantee a maximum of 75%, you guarantee a minimum of 75% so the additional 25% is still up for grabs, it's just that it's not reserved for any class in particular.
hope the question makes sense.
Thanks,
Andres

Hi Andres,
On low speed links, WFQ is the default. So in the case that you have a link with less than 768 kbps, it will be running WFQ. With WFQ, it's not so much 'up for grabs'. WFQ is based on packet size, DSCP values, and time in queue.
Generally, router control packets aren't very large, and by default they are usually in the DSCP 48-64 range, which is very high. So in this case, the control packets are very high priority.
As well, control packets are marked with a special tag on the backplane of most routers (platform specific) to give an even high level of precedence within the router.
When the max-reserved bandwidth is a very high value, it is more likely for the traffic to have a higher interference with these two methods (particularly the first).
hth,
nick

Java 1.4.1 - Could not reserve space for object heap - need help

I know this problem has been posted before, but I thought this was fixed in release 1.3. I'm using Windows XP/Professional and do the following:
C:java -Xmx2g
Error occured during initialization of VM
Could not reserve space for object heap
C:java -version
java version "1.4.1_02"My computer system has 1 GB of RAM and a 2 GB pagefile, expandable to 3.5 GB. I can get going with -verbose:gc -Xmx1600m -Xms200m, but the GC only gets to about 1 GB before I get an out of memory exception, not even close to 1.6 GB as specified.
I'd really appreciate it if anyone can shed some light on this behavior.
Cheers, Eric

Hmm.
I tried a mini no-operation application with jdk1.3.1 on Linux. It run okay like this:
$ java -Xmx1934M u
$ echo $?
0
$ java -version
java version "1.3.1_07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_07-b02)
Java HotSpot(TM) Client VM (build 1.3.1_07-b02, mixed mode)
$ cat u.java
class u {
public static void main(String a[]) {
$This however fails miserably:
$ java -Xmx1935M u
Unexpected Signal : 11 occurred at PC=0x401a0cb7
Function name=start_thread__2osP6Thread
Library=/usr/lib/jdk1.3.1_07/jre/lib/i386/client/libjvm.so
Current Java thread:
Dynamic libraries:
08048000-0804c000 r-xp 00000000 03:08 174723     /usr/lib/jdk1.3.1_07/bin/i386/native_threads/java
0804c000-0804d000 rw-p 00003000 03:08 174723     /usr/lib/jdk1.3.1_07/bin/i386/native_threads/java
40000000-40012000 r-xp 00000000 03:08 20686      /lib/ld-2.2.5.so
40012000-40013000 rw-p 00011000 03:08 20686      /lib/ld-2.2.5.so
...This looks familiar:
$ java -Xmx2000m u
Error occurred during initialization of VM
Could not reserve enough space for object heap

What is the required internet bandwidth for Endeca Web Acquisition Tool

Hi,
What is the required internet bandwidth for Endeca Web Acquisition Tool.
Regards,
Suresh.

I would expect the tool to work within the constraints of the bandwidth available. Low bandwidth = slow acquisition.

Can we create different reservation no for each auto PR created through PS.

Hi Gurus
With reference to above captioned subject, can we create different reservation no for each auto PR created through PS
Thanks in advance
Regards
Abhijit Sen

Hi,
The reservation number will be same for all the material components in one network.
so as long as there are "n" components in one networks then all the "'n" components will have the same reference number.
If you need different reservation numbers then need to maintain those components in multiple networks.
Hope its useful.
Reward points if useful.
Thanks..

How to reserve material for Internal order

Hi,
How to reserve material for Internal order?
Please reply ASAP.
Thanks & Regards,
Pankaj

Hi Eli,
Thanks for the reply.
I was asking for the integraing of automatic creation of reservation of material.
please revert back if i need to give more details.
Regards,
Pankaj

Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOA

Can anyone help figure out why the Catalyst 6509 is not able to assign an IPv6 address? Thank you.
Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOADDRS-AVAIL(2). My configuration on the 6500 for the DHCPv6 server is:
ipv6 dhcp database disk0://DHCPV6-DB
ipv6 dhcp pool VLAN206IPV6
prefix-delegation pool VLAN206IPV6-POOL
dns-server 2620:B700:0:1001::53
domain-name global.bio.com
ipv6 local pool VLAN206IPV6-POOL 2620:B700:0:12C7::/65 65
interface Vlan206
description *** IPv6 Subnet ***
ip address 10.2.104.2 255.255.255.0
ipv6 address 2620:B700:0:12C7::2/64
ipv6 nd prefix 2620:B700:0:12C7::/64 14400 14400 no-autoconfig
ipv6 nd managed-config-flag
ipv6 dhcp server VLAN206IPV6
standby version 2
standby 0 ip 10.2.104.1
standby 0 preempt
standby 6 ipv6 2620:B700:0:12C7::1/64
standby 6 preempt
I'm getting a result from my debug as follows:
Apr 10 16:28:02.873 PDT: %LINK-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.873 PDT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.877 PDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Received SOLICIT from FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: dst FF02::1:2
Apr 10 16:28:03.861 PDT: type SOLICIT(1), xid 8277025
Apr 10 16:28:03.861 PDT: option ELAPSED-TIME(8), len 2
Apr 10 16:28:03.861 PDT: elapsed-time 101
Apr 10 16:28:03.861 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.861 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.861 PDT: option IA-NA(3), len 12
Apr 10 16:28:03.861 PDT: IAID 0x0FF01FAF, T1 0, T2 0
Apr 10 16:28:03.861 PDT: option UNKNOWN(39), len 32
Apr 10 16:28:03.861 PDT: option VENDOR-CLASS(16), len 14
Apr 10 16:28:03.861 PDT: option ORO(6), len 8
Apr 10 16:28:03.861 PDT: DOMAIN-LIST,DNS-SERVERS,VENDOR-OPTS,UNKNOWN
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Option IA-NA(3) is not supported yet
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Sending ADVERTISE to FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::21D:E6FF:FEE4:4400
Apr 10 16:28:03.861 PDT: dst FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: type ADVERTISE(2), xid 8277025
Apr 10 16:28:03.861 PDT: option SERVERID(2), len 10
Apr 10 16:28:03.865 PDT: 00030001001DE6E44400
Apr 10 16:28:03.865 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.865 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.865 PDT: option STATUS-CODE(13), len 15
Apr 10 16:28:03.865 PDT: status code NOADDRS-AVAIL(2)
Apr 10 16:28:03.865 PDT: status message: NOADDRS-AVAIL

Hello,
maybe hitting the following bug.
Pv6 Address Assignment Support for IPv6 DHCP Server
CSCse81385
Hope this helps

802.1X for wired environments using Radius/ACS for Dynamic Vlan Assignment

Currently Being Moderated
802.1X for wired environments using Radius/ACS for Dynamic Vlan Assignment
Could someone please provide me with a simplest set of configuration steps to fire up Radius in ACS and 802.1X for dynamic vlan assignment. The objective is to roll out NAC L2 OOB using the 802.1X method for dymamic vlan assignments.
If possible show:
1. ACS/Radius Configurations.
2. End User Switch Configurations
Variables:
Switch A
MAC Address aaaa.bbbb.cccc     Vlan 10
            bbbb.cccc.dddd     Vlan 20
Also, if someone posts the Pros and Cons of using Radius/ACS/802.1X for Dynamic Vlan Assignments.
Other technology sets that can be used for Dynamic Vlan assignment EXCEPT from deprecated/obsolete VMPS.
Thanks in advance. .

Hi Guys,
    Hmmm, well if your just looking for Mac based authentication the good news is that is very easy. Just set create your Radius server, ACS, FreeRadius, Steelbelted radius etc. Then create user with the name of the Mac address, in other words if the mac address is 0012.0021.1122 the the name would be 001200211122 and the password would be the mac address. Then you set the vlan and tunnel stuff, like so tunnel-Type would be vlan, Tunnel-medium would be 802 and Tunnel-Private-Group-ID is the name of the vlan(not the vlan number)
   So for the Cisco ACS 4.x you would create a user as specified above, fill in all the password boxes with MAC address, I believe the mac has to be all lower case in the name and the password. Then check the Separate(Chap/MS-Chap/ARAP) box. Then you pick the group the machine belongs to, the group is the part that defines what vlan it is on.
   Before you create the user, create the group with info I wrote above and in addition specify the Service-Type as Authenticate Only.
    Freeradius is a bit harder to configure the specifics and I am just now testing a freeradius server so I do not know the process for Machine authentication.
    If, however, you are trying to authenticate a user that gets a bit trickier and is not so straight forward.

DLSW ethernet redundancy for multiple vlans

Can dlsw ethernet redundancy support mutliple vlans with the following configuration?
host dlsw router1 host dlsw router2
| |
local dlsw router 1 local dlsw router2
| |
ethernet switch1-------ethernet switch2
Ethernet switch1 and 2 are supporting multiple vlans and connected to local dlsw router1 and 2 through 802.1Q. SNA support is required for the vlans of ethernet switch1 and 2 .
We found that configuration of dlsw ethernet redundancy is not allowed on the 802.1Q sub-interface of the local dlsw router1 and 2. In this case, how can dlsw ethernet redundancy can be supported for SNA server attached to multiple vlans? Can you provide us some reference / sample for dlsw ethernet redundancy to support SNA servers attached to different vlans in a switch environment.
Thanks.

I think that I understand the problem. I am thinking the following:
dlsw local-peer peer-id 2.2.2.2 promiscuous
dlsw transparent switch-support
interface Ethernet0
mac-address 0000.3333.3333
dlsw transparent redundancy-enable 9999.9999.9999 master-priority 10
dlsw transparent map local-mac 0000.6666.0000 remote-mac 0200.eca2.0000 neighbor 0000.5555.5555
interface Ethernet1
mac-address 0000.4444.4444
dlsw transparent redundancy-enable 9999.9999.0001 master-priority 10
dlsw transparent map local-mac 0000.6666.0001 remote-mac 0200.eca2.0000 neighbor 0000.7777.7777
Of course, you need an ethernet interface per VLAN. If you need DLSw ER over dot1q interface, please contact the local Cisco Sales Rep or partner. You are not the first one to ask for it. Hope that there is a strong business case to initiate the new feature.

Reservation system for unique product in SAP in timeschedule

Is it possible somewhere to reserve products for a certain period of time and that the system checks whether the product is already reserved or not.
the business case is as follows:
we have a department which is responsible for the renting of audio visual machines like beamers and laptops.
there are for instance 10 laptops available. if someone reserve 5 laptops from 18-09-2008 till 20-09-2008 then there are only 5 laptops available in that time period.
so when somebody tries to make a new reservation for 8 laptops from 16-08-2008 till 19-08-2008 then the system should give a warning that there is a shortage a certain period of time due to other reservations.
I tried to use reservation materials cq equipments but they don't check on availability when I use it in an order .
is there any other module in SAP that can handle reservation of products ??
we also use training and event managment but I also haven't found a good sollution there, but perhaps I look in the wrong corner of that module (it's not my expertise TE)
kind regards
arthur de smidt

no answer

Manual reservation creation for Network order

Hi ,
I am trying to create manual reservation (MB21) for network (movement type 281), I am getting error message "Manual reservation for order category 20 is not allowed". Whether it is possible to create manual reservation for network order by any other way or by config change?

Dear,
Check : OSS notes 305231 and 43924
Also check: http://www.sapfans.com/forums/viewtopic.php?f=8&t=37714
Regards,
Syed Hussain.

"FRM-40501: Oracle error: Unable to Reserve Record For Update or Delete"

"FRM-40501: Oracle error: Unable to Reserve Record For Update or Delete"
as I can unblock a session in the graphical surroundings of administration of the BD 10g of Oracle

From experience with this problem since the blocked customer form has been coded not to wait for the updating session to complete then there is likely no waiter on the system now so you cannot find the blocking session.
What you need to do is determine what row the Form was going after then using SQLPlus issue an update on the row. If the blocking session has not yet committed then this update will wait. Now if you look for blocking sessions you will be able to find it and make a determination if the session should be killed or if someone needs to call the user and ask he or she to flip through their screens and get out of the blocking screen.
Applications screens written not to wait on currently being updated data need to also be written to expose the information necessary to identify the row(s) in question.
HTH -- Mark D Powell --

Reserve Bandwidth for a vlan

Similar Messages

Maybe you are looking for