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Forgot to mention that all cabling has been Cat6 verified by a outside company, so i have trusted their testing, havent tried phones directly on the switched (allthough it might be time to do so.) I corrected all the 10/half ports by doing shut / no shut, and didnt see the problem again for...

Hi and thanks for your replies. (its a while, i know :P ) The switches used are 2960, 2970 & 3560's all switches shows the same error (randomly) 80% of the switches are 3560G 24/48port PoE switches. Tried upgradeing phone firmware to the newest version in the start of January (dont have the...

Hello all ! We have rolled out a quite large number of Cisco IP-Phones in a CCM4 environment with only Cisco network equipment. Lately ive seen a disturbing problem popping up around the network, that is the phones coming up with 10mbit half-duplex connections (this is a problem because we...

Hey, thx for your input. Regards to the last post, I have had alot of problems running AUTO towards equipment that is always in the network, like other cisco switches (and other brands esp.) and servers. Therefore i always hardset the duplex towards servers and other networkdevices on both...

The problem is that the switchports goes into Half Duplex mode even though they are forced to full duplex and the other side runs full duplex This problems occurs on random ports and against random devices, here is and example: Config: interface GigabitEthernet1/0/1 switchport access vlan...

Hello. I figured it out. One of the phone ports i used in the test had switchport mode access switchport access vlan xxx (the voice vlan) and no switchport voice vlan. When i changed this it worked.. Still abit weird that this worked if i had 7911 phones in both ends ^^. But thank for the help!

we use Vlan1 for administrative purposes only, no user traffic on it, then we have 1 vlan pr. purpose (like voice got its own vlan). We use 2940,2950,2970,3550,3560,3750 switches & some different cisco routers wich depend on the size of the location. small locations uses 1712's those that have...

---- ------ ------ ---- |7941|--|Switch|--internet--|Switch|--|7911| ---- ------ ------ ---- Maybe this explains it better. Between the phones and the switches we trust COS (use Auto QoS, trust for switches and device cisco-phone for phones ) over the WAN...

Hello!, Thanks for reading. I Have a really weird QoS problem. If i plug a Cisco 7911 Phone into my switch and trust it, i can see that the packets get a DSCP value when they enter that interface, and I can see them leaving the external interface. I also see them returning, so everything...