ShoreTel QOS on CISCO Switches

ShoreTel QOS on CISCO Switches? Quality of Service or QOS remains an interesting and challenging configuration for most engineers deploying VoIP solutions. Generally you are concerned about QOS on both your Local Area network (LAN) and your Wide Area... More

ShoreTel QOS on CISCO Switches? Quality of Service or QOS remains an interesting and challenging configuration for most engineers deploying VoIP solutions. Generally you are concerned about QOS on both your Local Area network (LAN) and your Wide Area Network (WAN). Though the principles and configuration for COS and DSCP markings are easily discoverable by anyone who takes the time to research these concepts, their application on various network components can be bit more challenging. Generally, QOS on a LAN makes use of COS bits in the VLAN tag and DSCP in the TOS byte of an IP packets for WAN router access. How these markings interoperate with different manufactures however, is really interesting. Take for example, the installation of ShoreTel equipment on Ethernet switches provided by CISCO. Generally a CISCO QOS configuration is enabled with the command “mls qos” which is a global configuration command. What you need to understand is that this command calls into action a wid Less