Cisco 9800 High Availability on IOS XE 17.x – notes
Information About High Availability High Availability (HA) allows you to reduce the downtime of wireless networks that occurs due to […]
Slowly working my way through INE’s CCIE R&S workbook
Eve-ng Physical Topology
Spanning-tree Communication – Bridge Protocol Data Units (BPDU)
Because STP is involved in loop detection, many people refer to the catastrophic loops as “Spanning Tree loops.” This is […]
Spanning Tree Basics – Part 3
Spanning-tree from the view point of DL-1 and DL2 The interface associated to lowest path cost is more preferred. The […]
Spanning Tree Basics – Part 2 – The STP root
In part one we looked at the simplest spanning tree decision that a switch can make when it has a […]
Spanning Tree Basics – Part 1
Locating Root Ports After the switches have identified the root bridge, they must determine their root port (RP). The root […]
Quality of Service (QoS) on Catalyst 9800 Controller – Basics (rough notes place holder)
Define class maps Class Map match-any DROP-NETFLIX1_AVC_UI_CLASS (id 39) Description: DROP-NETFLIX1_AVC_UI_CLASS UI_policy_DO_NOT_CHANGE Match protocol netflix Class Map match-any DROP-NETFLIX2_AVC_UI_CLASS (id […]
Infrastructure MFP – Part 1
Management frame protection (MFP) provides security for the otherwise unprotected and unencrypted 802.11 management messages passed between access points and […]
802.11 Deauth frames – type: management
4.5.4.3 Deauthentication reference – 802.11-2016 – page 223 The deauthentication service is invoked when an existing Open System, Shared Key, […]
802.11i / Robust Security Network/ 12.6.2 RSNA selection – part 1
reference 802.11-2016 – page STA = station RSNA – Robust Security Network Association A STA prepared to establish RSNAs shall […]