[c-nsp] QOS problem (multicast) with 3750

niklas rehnberg niklas.rehnberg at gmail.com
Thu Mar 11 07:22:33 EST 2010


Hi,
I need help to solve following problem.
I have setup qos in our 3750, see below.
Unicast traffic is handle correct, However with multicast streams the router
set the dscp to 0
Has somebody any idea what is missing?

Regards Niklas

ip multicast-routing distributed
ip multicast multipath
!
mls qos srr-queue input priority-queue 1 bandwidth 10
mls qos srr-queue input dscp-map queue 1 threshold 1 46
mls qos srr-queue input dscp-map queue 2 threshold 1 11 24 30 48
mls qos srr-queue output dscp-map queue 1 threshold 1 48
mls qos srr-queue output dscp-map queue 2 threshold 1 46
mls qos srr-queue output dscp-map queue 3 threshold 1 40
mls qos srr-queue output dscp-map queue 4 threshold 1 11 24 30
mls qos
interface GigabitEthernet1/0/22
switchport access vlan 41
switchport mode access
load-interval 30
srr-queue bandwidth share 25 25 25 20
priority-queue out
mls qos trust dscp
!
interface GigabitEthernet1/0/23
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 40
switchport mode trunk
load-interval 30
srr-queue bandwidth share 25 25 25 20
priority-queue out
mls qos trust dscp

interface Vlan40
ip address 10.0.0.1 255.255.255.0
ip pim sparse-mode
!
interface Vlan41
ip address 192.168.98.129 255.255.255.128
ip pim sparse-mode


More information about the cisco-nsp mailing list