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configuring voice on cisco catalyst 3850 48 PoE and SG300-52P 52-Port

Samuel Muriithi
Level 1
Level 1

hello guys kindly help me configure this two devices properly

i just want the calls to go through

Problem Statement:

The current network topology involves a PBX with a static IP address (192.168.1.101) connected to a Cisco SG300 switch so are the IP phone all ports on SG300 are trunks, sg300 is trunked to a Cisco Catalyst 3850 switch. The objective is to configure Quality of Service (QoS) to prioritize voice traffic effectively across VLAN 200. Specific goals include:

  1. Configuring VLAN 200 on both the SG300 and Catalyst 3850 switches to handle voice traffic.
  2. Implementing QoS policies on the Catalyst 3850 switch to prioritize voice traffic marked with DSCP EF (46) into Queue 4 with priority level 1.
  3. Aligning QoS configurations on the SG300 switch to mirror those on the Catalyst 3850, ensuring consistent handling of voice traffic across VLAN 200.
  4. Verifying the QoS setup to ensure proper prioritization and smooth communication for voice services through the PBX and IP phones connected to the network.
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