[cisco-voip] Connection Monitor Duration

[Ryan Ratliff]

That varies based on the phone type.  I can't comment on what the  
VG224 does but the newer phones will be a bit faster to failover than  
older phones in certain situations. All of them will failover  
immediately if the TCP session is reset.  Newer phones will take  
about 4 seconds to failover after missing a TCP Ack.  Older phones  
will be a bit more forgiving.  All of them will failover after  
missing 2 or 3 (can never remember if server is 2 or phone is 2) SCCP  
Keepalive Ack messages.

-Ryan

On Jun 28, 2007, at 10:47 AM, Lelio Fulgenzi wrote:

Thanks for clearing that up Ryan. I read through it to quickly.

I guess I'm seeing the result of the sccp keepalives? I'd like them  
to register as quickly as possible. Both VG224 and phones.

Any suggestions?

------------------------------------------------------------------------ 
--------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo  
buffalo."      WJR
----- Original Message -----
From: Ryan Ratliff
To: Lelio Fulgenzi
Cc: cisco-voip at puck.nether.net
Sent: Thursday, June 28, 2007 10:44 AM
Subject: Re: [cisco-voip] Connection Monitor Duration

Connection Monitor Duration shouldn't control how fast a phone
registers with the SRST router.  It controls how fast the phone fails
back to CM FROM the SRST router.  The phone should still go into SRST
as soon as it loses connection to all CMs.

-Ryan

On Jun 28, 2007, at 9:07 AM, Lelio Fulgenzi wrote:

Something doesn't sit well with me with a Connection Monitor Duration
of 120 seconds. Having to wait 2 minutes before a phone registers
with SRST seems like a long time to wait, especially if you have
someone stuck in an elevator during a power outage. :(

Has anyone changed this to something lower, like 30 seconds and seen
any adverse affects?


------------------------------------------------------------------------
--------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo
buffalo."      WJR
_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip