Just read your other post. Perhaps we keep this one?
Have you set the ports to portfast or are you using bpduguard? Perhaps they have been set to one of these configs and then when the phones send STP, the switch thinks you have a misconfig or a loop.
The switch in this case would be keeping a loop or misconfig from occurring, and thus does the right thing by shutting the port. As an admin and through the web gui, there is normally an option to re-enable the ports.
Hi every one!!!When you are configuring a remote VPN connection, there
are some steps that are lost on the path. Here you can see those steps.
A) In your Cisco device: 1. Ensure you don´t have any rule denying the
traffic between the device and the remote...
Introduction: This document describes how to connect SG300 with Catalyst
switch via STP. Spanning Tree Protocol (STP) is a Layer 2 protocol that
runs on mainly on switches. The specification for STP is IEEE 802.1D.
The main purpose of STP is to ensure tha...
You have a Cisco Unified Communications Manager (CUCM) system and want
to configure a SPA112 analog telephone adaptor (ATA) to register to the
CUCM so that you can use up to two analog phones or similar FXS devices
with the CUCM.In this application note, ...