Question

ASA 5510 QoS Configuration

Asked by: llarmeu

I am trying to configure QoS to prioritize outgoing and incoming traffic to a particular interface on my ASA 5510.

My outside connection is 6MB synchronous ethernet on Ethernet0/0

My local computers and other peripherals are on 192.168.0.x. and are on Ethernet0/1

My local VoIP phones (Avaya) are on 192.168.2.x and are on Ethernet0/2 on the ASA.

I have a remote office that also has an ASA 5510 and their local IPs are on 192.168.10.x with their 5 phones being 192.168.10.200 - 192.168.10.204 - this is on Ethernet0/1 on the remote ASA with a T1 being connected to Ethernet0/0 through a Cisco 2600 router.

We currently have a site-to-site VPN set up and we can access each other back and forth.  Their VoIP phones are connected to my gateway.  We are having some bandwidth limitation issues and need to set up QoS immediately, but I do not know how to do it.

I'd like to portion off approx. 256k or so on each end and dedicate it to the phone traffic only.  Data bursts on both ends are hogging the pipe and causing random dropped calls at times.  I also would like to prioritize the VoIP packets.

Can anyone help?

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Asked On
2009-08-31 at 07:23:07ID24694822
Tags

cisco

,

asa 5510

,

qos

Topics

Cisco PIX Firewall

,

Networking Hardware Firewalls

Participating Experts
2
Points
500
Comments
12

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Answers

 

by: llarmeuPosted on 2009-08-31 at 07:36:23ID: 25223118

Another question, can I configure VLANs on ASA 5510s?  I'm much more familiar with Cisco switches than firewalls.

 

by: MrHusyPosted on 2009-09-01 at 02:25:36ID: 25229712

 

by: llarmeuPosted on 2009-09-01 at 06:48:35ID: 25231511

Thanks, I followed your tutorial on how to set priority based on subject and destination.  Is it possible to set a bandwidth reservation, though?

 

by: llarmeuPosted on 2009-09-01 at 07:57:30ID: 25232221

When I set the destination address, do I set the external IP that is on the remote network or the internal IP on the remote network?

 

by: llarmeuPosted on 2009-09-09 at 11:55:47ID: 25294386

Anyone?

 

by: MrHusyPosted on 2009-09-09 at 19:26:53ID: 25297031

   "When I set the destination address"  
     Two options. If you are dedicating a VPN tunnel for Voice traffic itself excluding data and removing encryption so you will have a faster voice network (which i recommend), you can QOS tunnel-group based.
     If you will include voice traffic in an existing tunnel, then the destination network, which is VOIP phones or media gateways, should be internal addresses, not external.

 

by: llarmeuPosted on 2009-09-10 at 07:03:36ID: 25300303

I'm using these steps you provided in another solution, but I am getting this error:

ERROR: Class prioritized_traffic has 'priority' set without 'priority-queue' in any interface


1) Define the IP traffic with an ACL
access-list Priority_Traffic permit ip sourcenetwork sourcenetmask destinationnetwork destinationnetmask
 
2)Create a class map and let it match the ACL
class-map prioritized_traffic
match access-list Priority_Traffic
 
3)Create a policy-map to define an action for the class-map
policy-map outside_policy
class prioritized_traffic
priority
 
4)Bind the policy-map to interface
service-policy outside_policy interface outside
 
5)To show traffic statistics that are prioritized, run
show priority-queue statistics

                                              
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by: llarmeuPosted on 2009-09-12 at 07:27:04ID: 25316614

I am still getting this error.  Can anyone help?

 

by: MrHusyPosted on 2009-09-13 at 12:52:15ID: 25321480

add this under outside interface
   priotiy-queue outside

 

by: llarmeuPosted on 2009-09-14 at 07:08:05ID: 25325554

OK, Thanks.  That appears to work now.  How about bandwidth reservations?  How do I do that?

 

by: ikalmarPosted on 2009-09-18 at 12:14:00ID: 25369019

Hi,

Please refer this guide, howto configure qos:

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008080dfa7.shtml

Best regards,
Istvan

 

by: llarmeuPosted on 2009-09-21 at 07:26:56ID: 31622541

Didn't answer entire question and took very long inbetween answers..

20120131-EE-VQP-002

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