Thanks Roger, I need to check this in my lab. Have you tried to save the config and reload the switch to see if this configuration persists?
Any idea since which IOS version this is possible? Is it available in the 3750 software used in the actual lab (version is not under NDA?) regards kobel 2011/1/27 Roger Källberg <roger.kallb...@cygate.se> > Hi Kobel, > I belive that the QoS SRND have it wrong, or at least is outdated, in this > case. > > I used this configuration on PL's 3750 during my study for the lab. > > class-map match-all MGCP > match access-group 101 > class-map match-all AutoQoS-VoIP-RTP-Trust > match ip dscp ef > class-map match-all AutoQoS-VoIP-Control-Trust > match ip dscp cs3 af31 > ! > ! > policy-map Police-MGCP > class MGCP > set dscp cs3 > police 16000 8000 exceed-action policed-dscp-transmit > policy-map AutoQoS-Police-CiscoPhone > class AutoQoS-VoIP-RTP-Trust > set dscp ef > police 320000 8000 exceed-action policed-dscp-transmit > class AutoQoS-VoIP-Control-Trust > set dscp cs3 > police 32000 8000 exceed-action policed-dscp-transmit > ! > interface FastEthernet1/0/1 > switchport trunk encapsulation dot1q > switchport trunk native vlan 10 > switchport mode trunk > speed 100 > duplex full > srr-queue bandwidth share 10 10 60 20 > priority-queue out > mls qos trust dscp > auto qos voip trust > service-policy input Police-MGCP > ! > interface FastEthernet1/0/2 > switchport access vlan 10 > switchport mode access > switchport voice vlan 20 > srr-queue bandwidth share 10 10 60 20 > priority-queue out > mls qos trust device cisco-phone > mls qos trust cos > auto qos voip cisco-phone > spanning-tree portfast > service-policy input AutoQoS-Police-CiscoPhone > ! > access-list 101 permit udp any any eq 2427 > access-list 101 permit udp any eq 2427 any > access-list 101 permit tcp any any eq 2428 > access-list 101 permit tcp any eq 2428 any > > As you can see it has both "mls qos trust cos" and "service-policy input > AutoQoS-Police-CiscoPhone" or "mls qos trust dscp" and "service-policy input > Police-MGCP" attached to the same interface, and this works as expected. > > This can also be seen in vol2 PG for the labs that has this requirement. > Sincerely > > *Roger Källberg* > CCIE #26199 (Voice) > Consultant > Cygate AB > Eric Perssons väg 21, SE-217 62 MALMÖ > > ------------------------------ > *Från:* Miron Kobelski [findko...@gmail.com] > *Skickat:* den 26 januari 2011 19:07 > *Till:* ccie_voice@onlinestudylist.com > *Ämne:* [OSL | CCIE_Voice] 3750 QoS: service-policy + mls qos trust > commands on the same port > > Hello, > > I'm working on Vol2 Lab8 QoS section. Task 5.2 requires to conditionally > trust DSCP markings from the Cisco IP phone, which can be accomplished with: > > mls qos trust device cisco-phone > mls qos trust dscp > > But 5.3 requires policing and remarking using service-policy for the same > switch port. > In the Enterprise QoS SRND page 106 we have: > > At the time of writing, the Catalyst 2970/3560/3750 does not support a > trust statement (such as mls qos > trust device cisco-phone) in conjunction with a service-policy input > statement applied to given port at > the same time. While this may be configurable, if the switch is reset, one > or the other statement may be > removed when the switch reloads. This limitation is to be addressed; > consult the latest Catalyst > 2970/3560/3750 QoS documentation for updates on this limitation > > PG's solution seems to ignore this fact. What's your opinion on this? I was > unable to find anything on this in the archive. > > BTW, how can I find QoS SRND via cisco.com documentation portal? > > regards > kobel > > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
