03-16-2010 03:18 AM - edited 03-04-2019 07:49 AM
Hi,
I have the below config:
!
class VOIP
match protocol rtp
policy-map QOS
class VOIP
priority 64
!
interface Tunnel255
ip address 10.255.255.4 255.255.255.0
ip nhrp authentication UbSmEbK
ip nhrp map 10.255.255.1 172.80.2.2
ip nhrp network-id 255
ip nhrp nhs 10.255.255.1
keepalive 10 3
tunnel source Ethernet0
tunnel destination 172.80.2.2
tunnel key 255
!
When I tru to apply the policy-map on the tunnel interface (service-policy output QOS) i am getting the following error:
"Low Latency Queueing feature is not supported in user defined class of parent level policy"
Any idea?
Solved! Go to Solution.
03-16-2010 03:54 AM
I could be wrong but i dont think you could apply a service policy on a tunnel interface for LLQ without shaping!
Instead, you need to apply a hierarchical policy. Create a "child" or lower-level policy that configures a queueing mechanism, such as low latency queueing with the priority command and class-based weighted fair queueing (CBWFQ) with the bandwidth command.
Create a "parent" or top-level policy that applies class-based shaping. Apply the child policy as a command under the parent policy because admission control for the child class is done according to the shaping rate for the parent class.
see http://www.cisco.com/en/US/docs/ios/12_4/interface/configuration/guide/inb_tun.html#wp1078284
03-16-2010 03:54 AM
I could be wrong but i dont think you could apply a service policy on a tunnel interface for LLQ without shaping!
Instead, you need to apply a hierarchical policy. Create a "child" or lower-level policy that configures a queueing mechanism, such as low latency queueing with the priority command and class-based weighted fair queueing (CBWFQ) with the bandwidth command.
Create a "parent" or top-level policy that applies class-based shaping. Apply the child policy as a command under the parent policy because admission control for the child class is done according to the shaping rate for the parent class.
see http://www.cisco.com/en/US/docs/ios/12_4/interface/configuration/guide/inb_tun.html#wp1078284
03-16-2010 04:02 AM
How i got mine to work without this error "*Mar 1 00:22:29.695: Class Based Weighted Fair Queueing not supported on interface Tunnel0"
class-map match-all VOIP
match protocol rtp
!
!
policy-map QOS1 (child policy)
class VOIP
priority 64
policy-map QOS (Parent top level policy)
class class-default
shape average 2000000
service-policy QOS1
interface Tunnel0
service-policy output QOS
03-16-2010 05:27 AM
Thanks, direct hit
Another question, I sourced a tunnel interface from a point-to-point frame relay interface, but the tunnel never came up.
Any idea why!!
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