* Is 802.1Q standard a tagging method or a protocol? Please explain the difference for each concept.
* 802.1Q tagging includes 3 priority bits for 802.1p standard. What IOS command is used to set up these bits? Are these bits only informative or have some QoS mechanism associated in both ports of the trunk? Please comment
3 bits makes 8 different combinations, which means, 8 different QOS classes are defined. You can prioritize certain traffic (say voice) over other (say data), using COS bits at OSI layer 2 level. (just like TOS bits at OSI layer 3 level).
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...