We have deployed 14 Catalyst 2960XR switches and are finding issues with Unify OpenStage 40 VoIP phones. The interfaces are configured with a voice and access VLAN, and the phones use LLDP successfully to join create a trunk and join the voice VLAN. They pick up an IP address, but cannot communicate on the port.
When a phone is put on to an Access port configured as the voice VLAN the phone works. When we put the phone onto a 3750X switch with the same configuration the phone works using the voice and access VLAN configuration.
After further investigation found that the specific issue was caused when the access vlan is greater than default and the voice vlan is set to a higher number than 71. Cisco TAC have agreed that this appears to be as a result of a potential bug. They are attempting to reproduce the fault and identifying it is indeed a software bug or a hardware fault.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.