08-11-2009 12:31 AM - edited 03-11-2019 09:04 AM
Hi,
I came across a problem after configuring QoS on a ASA5505 v8.2(1) for one of our customers (planning to use IP Phones over VPN). Although I configured via ASDM, here is the relevant CLI config:
priority-queue outside
class-map DM_INLINE_Child-Class
match dscp cs3 af31 ef
policy-map DM_INLINE_Child-Policy
class DM_INLINE_Child-Class
priority
policy-map outside-policy
description QoS
class class-default
shape average 3600000
service-policy DM_INLINE_Child-Policy
service-policy outside-policy interface outside
(the default global policy is also configured)
The problem is after configuring this, after some time (usually around 1 day), the traffic throughput on the ASA is very low. When I ping an outside host, about half the packets get lost. The internet connection has a fixed ip...no DHCP or PPPoE. If I remove the QoS policy from the outside interface or reboot the ASA, traffic throughput is normal again.
I used this configuration the first time on v7.2(4) where it worked without any problems for several months. The issue started after upgrading to 8.0(4) and persisted in 8.2(1).
Did anybody come across this? Am I missing anything what the config is concerned? The logs show nothing unusual.
Any feedback would be appreciated!
Ingo
Solved! Go to Solution.
08-11-2009 07:27 AM
You are more than likely running into bug CSCsx07862 which was resolved in 8.0.4.34 and 8.2.1.2. Another potential workaround that I have used in the past is to police the class default as opposed to shape.
08-11-2009 07:27 AM
You are more than likely running into bug CSCsx07862 which was resolved in 8.0.4.34 and 8.2.1.2. Another potential workaround that I have used in the past is to police the class default as opposed to shape.
08-11-2009 07:51 AM
Hi, thanks for the info! Where can I download version 8.2.1.2? On the Download Software site I can only find version 8.2.1.
08-11-2009 07:56 AM
TAC can publish the latest interim build for your to download. I would open an SR so that this issue can be properly documented. Please feel free to request that the SR be assigned to me.
Thank you,
Todd Pula
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