03-25-2008 11:04 AM - edited 03-15-2019 09:38 AM
I have two 3845's on a table, each with a Gigabit port connected to a switch. There is also a DSU/CSU card in each connected via a crossover cable on a different subnet.
E/M port on transmit router has a constant audio source, E/M port on Receive router hooked up to a speaker system.
Transmit Router:
voice-port 0/0/0
type 5
signal lmr
no vad
timeouts call-disconnect 3
connection trunk 500
!
dial-peer voice 500 voip
destination-pattern 5..
session target ipv4:10.117.11.201
codec g711ulaw
Receive Router:
voice-port 0/0/0
type 5
signal lmr
no vad
timeouts call-disconnect 3
dial-peer voice 500 pots
destination-pattern 500
port 0/0/0
With this setting the trunk is setup and the audio goes across with a dscp of EF and everything works.
If I change the session target to go across the PPP link and shu/noshut the voiceport I get audio for about 9 seconds and then it quits. And the DSAP for thos 9 seconds is not set.
access-list 120 permit ip any any dscp ef
via debug ip packet 120 shows nothing.
Any ideas?
03-31-2008 09:53 AM
This URL should help you:
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/catos/7.x/configuration/guide/qos.html
03-31-2008 10:48 AM
Try making your configuration mark with a inbound and out bound tagging. It sounds like you only have one way QoS.
class-map Inbound
match all dscp 46
class-map Outbound
macth all dscp 46
policy-map Voice Inbound
class Inbound
policy-map Voice Outbound
class Outbound
Apply both policy maps to the interfaces that allow communication between the routers.
I did not include priority settings or bandwidth precentages in this configuration.
This will allow tagging both directions.
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