3Com 4400 voice vlan and qos

So you have Cisco phones, because u use autoqos. (CDP enabled) on Cisco switches?
If not, autoqos will not automatically work, and for both Cisco and 3Com you have to adjust a few things.

First thing we need to know is the type of VoIP phone you have, before i can help you further.

Hi,

Plese configure all ports to trunk same as cisco config.....

Best regards,
Istvan

The voip system is a NEC Univerge SV8000 series communication server. with IP terminals.

  I can tag the ports on the 3com 4400 same as I did on the Cisco 3560 but what do I do about qos? I configured the 3560 with auto qos and it is working, the 3com 4400 doesn't have an auto qos command and I am not that experienced with setting up qos.

If you use autoqos on Cisco, your phones must be CDP capable, and they are not. So, autoqos can be configured, but will never do what its ment for in this setup. You have to reconfigure the cisco's for QoS to work.

For 3Com you can use web browser setup  to implement QoS on the 4400. Simple way is to mark Voice traffic based on vendor mac address with DSCP 46, or real-time class. Rest is default setting in 3com switches, so will work immediately.

I have tagged the ports on the 3com as I have on the Cisco, but I am unable to communicate between the Cisco and 3Com devices. The Cisco port is setup to trunk, that command is not available on 3com. What do I do to have the two devices communicate? Do I reconfigure the cisco port or 3Com port?

could you show me booth configs, topology, and we help you:)

I have a cisco 6509 (core) in the data center. I have cisco 3560 switches at 3 remote locations and I have 1 remote location with 3com 4400 switches. I also have another remote location with a mixture of both cisco 3560 and 3com 4400, the 3560 is the uplink to the core. I am implementing a new NEC voip system so I created a voice vlan. I enabled the voice vlan on the 6509 and the 3560s. I also created a vlan trunk on the cisco devices. I also have auto qos enabled on the cisco devices. The 6509 and the 3560s are communicating and passing the voice traffice with no issues. The problem that I am having is at the remote locations with the 3com 4400s the voice traffic is not passing thru. The 3com 4400 were configured with the factory default settings just to pass the data traffice from the cisco 6509 and 3560, now I need to configure the 4400 to pass the voice traffic from the cisco 6509 and 3560. I am not familiar with configuring the 3com switches. I need to know how to have the 3com switches communicate with the cisco switces. I can't figure it out, HELP!!

I was successful creating  the trunk on the Cisco 3560 and tagging the vlans on the 3com 4400. All vlans on both devices are now able to communicate. How do I configure qos on the 3com 4400? I configured the cisco devices with auto qos. Does 3com have a similar command?

HI,

the 'apply qos-profile default' command enable the default configure qos!

Best regards,
Istvan

acl number 4999
 rule 0 permit type 8868 ffff
 rule 1 permit source 00e0-bb00-0000 ffff-ff00-0000
 rule 2 permit source 0003-6b00-0000 ffff-ff00-0000
 rule 3 permit source 00e0-7500-0000 ffff-ff00-0000
 rule 4 permit source 00d0-1e00-0000 ffff-ff00-0000
 rule 5 deny dest 0000-0000-0000 ffff-ffff-ffff
#
qos-profile default
 packet-filter inbound link-group 4999 rule 5
 traffic-priority inbound ip-group 3999 rule 0 cos voice
 traffic-priority inbound ip-group 3999 rule 4 cos network-management
 traffic-priority inbound ip-group 3999 rule 5 cos network-management
 traffic-priority inbound link-group 4999 rule 0 dscp ef cos voice
 traffic-priority inbound link-group 4999 rule 1 dscp ef cos voice
 traffic-priority inbound link-group 4999 rule 2 dscp ef cos voice
 traffic-priority inbound link-group 4999 rule 3 dscp ef cos voice
 traffic-priority inbound link-group 4999 rule 4 dscp ef cos voice
 
Then go to the individual port to apply the qos profile:
 
#
interface GigabitEthernet1/0/2
 stp edged-port enable
 broadcast-suppression PPS 3000
 priority trust
 undo jumboframe enable
 apply qos-profile default <----applies the qos to the port
 

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I was to get the 3Com and Cisco devices to communicate but I am still having issues with qos on the 3com devices