From: steven.j.nelson@bt.com
Date: Wed Nov 06 2002 - 08:30:23 GMT-3
Jarek
So versions of code have problems with standard phones in dual fxs mods
where the phone is in port 2 rather than port 1.
Is your fxs module a dual ? If so which port is the phone plugged into, if
it is in port 2 then try plugging it into port 1.
Thanks
Steve
CCIE#10055
-----Original Message-----
From: Jaroslaw Zak [mailto:jaroslawz@hotmail.com]
Sent: 06 November 2002 10:59
To: ccielab@groupstudy.com
Subject: Voice question
Hi,
Suppose you have simple case where IP phone is plugged to FXS port of your
router, you have completed standard voice config:
dial-peer voice 1 pots
destination-pattern 111
port 1/0/0
dial-peer voice 2 voip
destination pattern 222
session target...
then when you pick up the hook and try to dial 222 you get constant signal
all the time, even during dialing and of course call is not placed. Any idea
what could that be?
Cheers
Jarek
>From: "Donny MATEO" <donny.mateo@sg.ca-indosuez.com>
>Reply-To: "Donny MATEO" <donny.mateo@sg.ca-indosuez.com>
>To: "Szeto Jeff" <jytszeto@hotmail.com>
>CC: ccielab@groupstudy.com, nobody@groupstudy.com
>Subject: Re: 3550 root guard and loop guard
>Date: Wed, 6 Nov 2002 18:02:27 +0800
>
>Root guard, is used to make sure the port will never become a root port. It
>works in such as way
>that if the spanning tree calculation result on the port with the root
>guard configured selected as
>the rootport (meaning a bpdu is received on this interface with higher
>bridge ID), the port is put
>in incosistent state (read as blocked), and the spanning tree will select
>another port as the root
>port.
>
>For loopguard, what it do is to make sure that your Root port and alternate
>will never become a
>Designated port for "other" switch.
>So in other words, your switch will never be the switch in the root path
>for others. Imagine if
>you're on access switch and suddenly the uplink of the access switch became
>the Designated port of
>the distribution switch, something must be wrong. Use loopguard to prevent
>this from happening.
>
>That is my understanding, perhaps other can give more.
>Donny
>
>
>
> "Szeto Jeff"
> <jytszeto@hotmail To:
>ccielab@groupstudy.com
> .com> cc:
> Sent by: Subject: 3550 root guard
>and loop guard
> nobody@groupstudy
> .com
>
>
> 06-11-2002 16:45
> Please respond to
> "Szeto Jeff"
>
>
>
>
>
>
>Hi Group,
>
>I am reading the config guide and do not clear about the root and loop
>guard.
>
>Why root guard prevent the remote switch that connecting to the local
>switch
>from becoming the root?
>The following, about the loop guard, is copied from the guide:
>"You can use loop guard to prevent alternate or root ports from becoming
>designated ports because of a failure that leads to a unidirectional link"
>Actually, what the loop guard do?
>
>Thank you in advance.
>
>Jeff
>
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