Either my google searches are terrible or there is a surprising dearth of articles when it comes to this topic. The scenario is you’re building a DHCP scope on a Cisco switch and need to convert your WLC IP from 192.168.23.52 into a hex value. This hex value is used in something called DHCP Option 43… Continue reading Converting IP to Hexadecimal for Option43
N.B. All configurations are based off the lab build seen in the introduction post. Power over Ethernet (PoE) is standardised into the the original 802.3af standard that provides up to 15.5W of power and the 802.3at standard which caters for up to 25.5W or 30W depending on which articles you read (confusing). These days many device types… Continue reading CCIEW – 2.4 Configure and Troubleshoot PoE for APs
N.B. All configurations are based off the lab build seen in the introduction post. I’ve completely skipped 2.2 Plan network infrastructure capacity and gone this which should also be a quick unless I’m underestimating things. 2.3 Configure and troubleshoot network connectivity for: 2.3.a WLAN clients 2.3.b WLCs 2.3.c Lightweight APs 2.3.d Autonomous APs Overview This section was… Continue reading CCIEW – 2.3 – Configure and Troubleshoot Network Connectivity
N.B. All configurations are based off the lab build seen in the introduction post. Hot Standby Router Protocol (HSRP) is one of three First Hop Redundancy Protocols covered in the CCNP R&S and, fortunately for our memories, is the only one required for the CCIE Wireless lab. In a nutshell this Cisco proprietary protocol allows two or… Continue reading CCIEW – 2.1.e HSRP
N.B. All configurations are based off the lab build seen in the introduction post. Link Aggregation (LAG) or Etherchannel / Port-Channel allows us to bond a number of interfaces together to increase throughput, usually on trunk links to other switches or WLCs. The maximum active physical interfaces in a bond is 8 although some IOS/Switches will allow… Continue reading CCIEW – 2.1.d Etherchannel
N.B. All configurations are based off the lab build seen in the introduction post. Intro Spanning Tree. For something that is so simple in theory, it can drive network techs crazy and cause confusion. Like many technologies it has its different flavours with some being proprietary to Cisco and others part of the 802.1D standard. What probably… Continue reading CCIEW – 2.1.c STP
N.B. All configurations are based off the lab build seen in the introduction post. VTP Versions There are three versions of the Cisco proprietary VLAN Trunking Protocol (VTP), 1, 2 and 3. Versions 2 and 3 are generally used in most modern deployments so I would expect questions and configs to be focused around both those versions. However version 1 is the default, enabled-out-of-box,… Continue reading CCIEW – 2.1.b VTP
