Paul - Yes, your description is correct.
- moving the phone (no ethernet passthrough) results in no symptoms
- testing at the same location with no ethernet passthrough is not possible during "real" traffic transport, since there's only one ethernet in that cube
- comments about pingfloods: there is minimal traffic on this network, and no pingfloods or other data directed at the Cisco phone. Other phones of identical configuration on the same subnet/collision domain/switch show no symptoms.
Interestingly, there was a followup post that talked about cell phone radiation causing lockups on the poster's 7960. There was an old AT&T 7406 Plus phone located _directly_ next to the 7960 in question in my circumstance. I have since moved the 7406 away from the 7960; let's see if perhaps that is the culprit due to spurious RF interference.
JT
At 4:59 PM -0800 12/14/03, Paul Mahler wrote:
So do I have this right? You have a 7960 hooked up to your network. You have a PC plugged into the second Ethernet port of the phone. This 7960 freezes.
If you move the phone somewhere else in the office, without the PC, it doesn't freeze? Does it freeze when it's in the same location, but the PC isn't plugged into it? That is, does this happen only when a PC is plugged into the phone?
Paul
Paul Mahler mail:[EMAIL PROTECTED] phone: 650.207.9855 fax: 877.408.0105
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Todd Sent: Sunday, December 14, 2003 2:59 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Cisco 7960 lockups - any experiences?
This is almost certainly not an Asterisk-specific posting, but due to my inability to find a VoIP-focused Cisco list, I'll post here in the hopes of finding a more diverse user community.
I am using a Cisco 7960 (version 6.0 SIP firmware) with Asterisk, and have been experiencing situations where the phone locks up. "Locks up" means that the bottom part of the screen ("Your current options" and the redial/newcall/cfwdall keys) disappears, and all keys on the keypad are non-functional except for the *-6-settings reboot keys.
Previous software (4.4) exhibited the same symptoms. I replaced the 7960 with a brand new 7960G, thinking it was bad hardware. Same symptoms. I replaced the power supply, thinking that perhaps could be the problem Same symptoms. I upgraded to 6.0. Same symptoms. I replaced the ethernet cables. Same symptoms. I invoked an ancient curse-removal spell involving chicken bones and eye of newt over the phone. Same symptoms. A phone elsewhere in the same office (same switch, etc) works with no problems, but does not have a PC hooked to the 'PC' ethernet port. In fact, the first 7960 I tried, with the swapped out power supply, works well elsewhere.
I have used 79xx boxes in many circumstances, and all have performed admirably. However, I rarely have configured them so that a PC is connected to the other side of the device. The PC is running Windows XP, and sees mild SSH/email/web traffic. I cannot say if there is a correlation between traffic volume and failure intervals; I have no data.
The only thing that remains the same is the PC on one side, and the switch port on the other. Previously, the PC attached to that switch port had worked without any problems for quite some time before I put the 7960 in place. Even if the problem is the PC or the switchport, a failure or malfunction on one of those two components should not cause the phone to malfunction. If it is a problem with the 7960 pushing traffic across the tiny built-in switch, then we have a real problem on our hands that Cisco had better fix, pronto.
I would appreciate reports of others as to similar issues or resolutions which they found effective.
JT
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