Hi Guys,<br><br>You can use the "Connection Monitor Duration" setting on the device pool configuraiton to do this.<br><br>I think by default it is 120 seconds.<br><br>It controls when the devices in SRST mode, will unregister from SRST control and re-register with the callmanagers...<br>
<br>It doesnt care about the link, but if you set it up high enough, then it gives you enough time to work what is going on and take appropriate measures, i.e. blocking CCM access until a flapping link is resolved..<br><br>
Cheers,<br><br>Tim<br><br><br><div class="gmail_quote">On Mon, Jul 7, 2008 at 3:41 PM, Alex <<a href="mailto:ecralar@hotmail.com">ecralar@hotmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi there,<br>
Another option would be to use floating static routes+IP SLA (ICMP or TCP dst port 2000) probes towards CCM server.<br>
Something like this:<br>
!<br>
ip route <CCM IP> <a href="http://255.255.255.255" target="_blank">255.255.255.255</a> Null0 254<br>
ip route <CCM IP> <a href="http://255.255.255.255" target="_blank">255.255.255.255</a> <next-hop IP@> track 123<br>
!<br>
rtr 1<br>
type echo protocol ip IcmpEcho <CCM IP@> source-ipaddr <src IP@><br>
timeout 1000<br>
frequency 1<br>
rtr schedule 1 start-time now life forever<br>
track 123 rtr 1 reachability<br>
!<br>
Rgds<br>
Alex<br>
<br>
<br>
----- Original Message ----- From: "Shaji George" <<a href="mailto:sgeorge111@gmail.com" target="_blank">sgeorge111@gmail.com</a>><br>
To: <<a href="mailto:cbomba@s4nets.com" target="_blank">cbomba@s4nets.com</a>><br>
Cc: <<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>><br>
Sent: Wednesday, June 04, 2008 5:30 PM<br>
Subject: Re: [cisco-voip] Keeping phones in SRST Mode<br>
<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
If the circuit is bouncing, it is better to put an ACL to block the<br>
communication to call managers. You can use Perl script to do this.<br>
Once the circuit is stable, remove the ACL..<br>
Thanks<br>
shaji george<br>
<br>
On 6/4/08, Christopher M. Bomba <<a href="mailto:cbomba@s4nets.com" target="_blank">cbomba@s4nets.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Thanks, I was hoping to find a command similar to the "ccm-manager switchback" command.<br>
<br>
The ACL solution is a manual process and if I could create something that would monitor the link and if it stayed up for > 30 minutes then allow the phones to switchback. What about a script of some sorts to put on the router?<br>
<br>
I guess since H.323 is Peer-to-Peer I don't have the ability to rely on something else monitoring the link.<br>
<br>
Chris<br>
<br>
<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
Christopher Bomba CCNP, CCVP<br>
solutions4networks<br>
Email - <a href="mailto:chris@s4nets.com" target="_blank">chris@s4nets.com</a><br>
Cell - 412.398.3990<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
-----Original Message-----<br>
From: Lelio Fulgenzi <<a href="mailto:lelio@uoguelph.ca" target="_blank">lelio@uoguelph.ca</a>><br>
Sent: Wednesday, June 4, 2008 11:32am<br>
To: <a href="mailto:cbomba@s4nets.com" target="_blank">cbomba@s4nets.com</a>, <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
Subject: Re: [cisco-voip] Keeping phones in SRST Mode<br>
<br>
We want to prepare for something like this as well. The easiest thing to do<br>
would be to create an ACL at the main site (which would have the more<br>
stable) and simply prevent access to all your voip servers. You could<br>
simplify this with an alias that would copy a bunch of commands stored in a<br>
file to the running config. If you have numbered ACLs, it's even easier.<br>
<br>
Lelio<br>
--------------------------------------------------------------------------------<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>
...seen on a Geek Squad patch cord: "While it is the same length, this 7'<br>
crossover cable<br>
is not regulation issue for most competitive Manhattan double dutch leagues.<br>
----- Original Message -----<br>
From: "Christopher M. Bomba" <<a href="mailto:cbomba@s4nets.com" target="_blank">cbomba@s4nets.com</a>><br>
To: <<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>><br>
Sent: Wednesday, June 04, 2008 11:21 AM<br>
Subject: [cisco-voip] Keeping phones in SRST Mode<br>
<br>
<br>
> We have a H.323 gateway with SRST configured on it. The link between > the<br>
> site and CCM is flapping causing the phones to bounce between SRST and<br>
> CCM. How would I make the phones stay in SRST mode until I know the > link<br>
> is stable?<br>
><br>
> If the device was configured as MGCP we see a command "ccm-manager<br>
> switchback never or uptime-dely" could work but we are not in MGCP.<br>
><br>
> Thanks,<br>
> Chris<br>
><br>
><br>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
> Christopher Bomba CCNP, CCVP<br>
> solutions4networks<br>
> Email - <a href="mailto:chris@s4nets.com" target="_blank">chris@s4nets.com</a><br>
> Cell - 412.398.3990<br>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
><br>
><br>
><br>
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