Hello everyone,
I just have a question. Recently I've implemented QoS on my ASA 5510 to prioritize my voice and video against regular data. I've read a lot about, what's is said to be the best queing method for voice, LLQ, unfortunately I discovered that all the things I've read and learned didn't exist on an ASA. I wanted to guarantee bandwidth for my SSH and Telnet traffic but I couldn't, I wanted to let my regular data have all the traffic while no congestion is being experienced by the ASA but I'm not sure wether it would work. So what I did was I made different class-maps to match my different traffics and then I defined three traffic as priority traffic and I policed the others. I'm not sure but I think all the priority traffic compete against each other in the same prioty queue. Also if that priority queue has always traffic in it, it could starve the non priority traffic. Am I in the right?
My rules seem to work, but I'd like your opinion on wether I did it the right way.
Thank you in advance for any comments you may give me.
access-list ACLVIDEO extended permit tcp host 10.5.5.7 any range 3230 3243
access-list ACLVIDEO extended permit udp host 10.5.5.7 any range 3230 3341
priority-queue outside
tx-ring-limit 3
class-map MATCH_DSCP_EF_VOICE
match dscp ef
class-map MATCH_SIP
match dscp af31
class-map VIDEO
match access-list ACLVIDEO
class-map MATCH_TELNET_SSH
match port tcp range ssh telnet
!
!
policy-map REGLES-LLQ
class MATCH_DSCP_EF_VOICE
priority
class MATCH_SIP
priority
class MATCH_TELNET_SSH
police output 10000
class VIDEO
priority
class class-default
police output 1407000
!
service-policy REGLES-LLQ interface outside
Priority-Queue Statistics interface outside
Queue Type = BE
Tail Drops = 0
Reset Drops = 0
Packets Transmit = 39644324
Packets Enqueued = 20217
Current Q Length = 0
Max Q Length = 7
Queue Type = LLQ
Tail Drops = 0
Reset Drops = 0
Packets Transmit = 281796
Packets Enqueued = 13
Current Q Length = 0
Max Q Length = 1
