My Cisco 7960g SIP phones share an annoying "feature": Anything I plug into their 2nd Ethernet or PC port loses connection every thirty seconds or so. I did a ping -t and can see regular drops. I do not have access to Cisco's tech support archives. I am pretty sure that this is a simple configuration problem. Can somebody point me in the right direction? Thanks in advance. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051020/ccc29a4a/attachment.htm
> My Cisco 7960g SIP phones share an annoying "feature": Anything I plug into > their 2nd Ethernet or PC port loses connection every thirty seconds or so. I > did a ping -t and can see regular drops. I do not have access to Cisco's > tech support archives. I am pretty sure that this is a simple configuration > problem. Can somebody point me in the right direction? Thanks in advance.It certainly doesn't sound like a feature :) Make sure that the port is configured for a PC and not a hub. I don't have a 7960 to check this on, but I know that there is a way to set the behavior of that port. Methinks it is near the end of the options under "Network Settings." -a
Tom Tune ha scritto:> My Cisco 7960g SIP phones share an annoying "feature": Anything I plug > into their 2nd Ethernet or PC port loses connection every thirty > seconds or so. I did a ping -t and can see regular drops. I do not > have access to Cisco's tech support archives. I am pretty sure that > this is a simple configuration problem. Can somebody point me in the > right direction? Thanks in advance.edit the SIP<MAC>.cnf network_port2_type = Hub/Switch (Optional) Configures the device type that is connected to port 2 of the phone. Valid values are Hub/Switch and PC. Default is Hub/Switch. Note If the value is PC, port 2 can be connected only to a PC. If you are not sure about the connection, use the Hub/Switch default value. Specifying the PC option and then connecting port 2 to a switch results in spanning-tree loops and network confusion. Sergio
Tom, Do you have VLANs or QoS configured on your switch? I had the same problem with my CP-7960 connected to a Catalyst 3524XL switch. I solved it by tweaking my QoS settings on the switch, there was an option to enable dot1p priority tagging on the voice VLAN. I am not sure if the Dell switch you are using has a similar feature, if it does check there. Also, how have you troubleshot this problem so far, does it happen on every switch you've tried? Is it happening on every CP-7960G you've tried? You're right about it being a simple problem, that aux switch port has always worked fine IMLE. Cheers, Omar A. Sabek On 10/20/05, Tom Tune <tomtune@gmail.com> wrote:> > My Cisco 7960g SIP phones share an annoying "feature": Anything I plug > into their 2nd Ethernet or PC port loses connection every thirty seconds or > so. I did a ping -t and can see regular drops. I do not have access to > Cisco's tech support archives. I am pretty sure that this is a simple > configuration problem. Can somebody point me in the right direction? Thanks > in advance. > > _______________________________________________ > --Bandwidth and Colocation sponsored by Easynews.com <http://Easynews.com>-- > > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051020/cc1c4500/attachment.htm
On Thursday 20 October 2005 19:18, Tom Tune wrote:> My Cisco 7960g SIP phones share an annoying "feature": Anything I plug into > their 2nd Ethernet or PC port loses connection every thirty seconds or so. > I did a ping -t and can see regular drops. I do not have access to Cisco's > tech support archives. I am pretty sure that this is a simple configuration > problem. Can somebody point me in the right direction? Thanks in advance.Hi Tom, something similar has happened to me with Cisco ATA186 and a Cisco Switch module, with the ATA equipment that "disappears" every minute... ;( I've solved the problem setting explicitely speed & duplex type in switch port configuration. By default configuration it was in "auto". After setting 100Mb/full_duplex the problem has vanished and everithing is going well... Cheers Jonathan