09-05-2011 08:05 AM - edited 03-11-2019 02:21 PM
Hi,
We planned to configure QOS in our ASA. Decided to go for priority queue, but the problem is, asa is cofigured with subinterfaces. If i apply the command priority-queue physica interface name, then this will take care of subinterfaces configured under the physical interface?
Is there any way we can use priority queue for subinterface links.
09-05-2011 08:36 AM
Hi,
As per your query,QoS is not supported on a subinterface, only on the main interface itself. If you configure QoS on an interface itself, all the sub-interfaces are also affected by the QoS. Here is the doc for it:
http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008080dfa7.shtml
Hope this helps
Thanks,
Varun
04-18-2012 02:42 PM
Hi Guys -
When people choose to configure subinterfaces on an ASA, as I generally do, they commonly don't configure the physical interface at all -- no NAMEIF, no IP address, etc. In this case you'll need to put a 'NAMEIF' on the physical interface in order to apply the priority queue, which will then be inherited by the subinterfaces as described above.
Note that the service-policy (that specifies "priority" queueing for some traffic) is still applied to the subinterface.
Example:
interface GigabitEthernet0/0
description [OUTSIDE] MAIN OUTSIDE INTERFACE
speed 1000
duplex full
nameif OUTSIDE_PHYSICAL
security-level 0
no ip address
!
priority-queue OUTSIDE_PHYSICAL
queue-limit 1000
tx-ring-limit 167
!
!
interface GigabitEthernet0/0.99
description OUTSIDE INTERFACE
vlan 99
nameif OUTSIDE
security-level 0
ip address 1.1.1.1 255.255.255.248 standby 1.1.1.2
!
policy-map QOS_OUTSIDE
class IMPORTANT_C
priority
!
service-policy QOS_OUTSIDE interface OUTSIDE
Cheers!
Mark Walters
CCIE 20571
12-02-2018 10:49 AM
Hi Mark,
Have you ever got your question answered?
Cheers,
Dee
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