If you have Meraki MX security appliances chances are that you have seen the SD-WAN & traffic shaping option in the Meraki dashboard menu. Software-defined WAN (SD-WAN) can dynamically optimize your WAN without having to make manual adjustments when network conditions change. In a network with redundant uplinks if one uplink becomes degraded, SD-WAN allows the network to dynamically select the best path to the destination. This is especially important for latency sensitive services such voip and video. Meraki’s philosophy has always been about simplicity and their SD-WAN solution is no different.
Recently, I have been working to upgrade Cisco network devices, mainly routers and switches, for a client. A recent network audit identified fragmentation in the IOSes and also security advisories. As a result, all the routers and switches required upgrades and it was a good opportunity for the client to standardize the IOSes for the different type of network devices in the environment.
IOS XE supported switches such as the 3850 and 3650 support two modes, Bundle mode and Install mode. New switches, by default, are shipped with install mode. If you never paid attention during an IOS XE upgrade on a switch you may have just copy the IOS XE image to flash and set the system boot variable to boot from the new IOS using the command below:
A few months of ago I was asked to help bring up a branch site for one of LookingPoint’s clients. This was unscheduled work and it was the first time I encountered Cisco’s Mobility Express. My previous projects have been enterprise deployments either using the traditional WLC or Meraki’s cloud managed APs. With Mobility Express, Cisco allows an AP to run as a wireless controller. Starting with 802.11ac Wave 2 access points, Cisco embedded a virtual WLC into the access point. I was pleasantly surprise and thought this make perfect sense for branch offices or for small to medium-sized businesses. No longer are branch sites tethered to HQ for wireless with capwap tunnels from branch site APs having to register with the WLC at HQ. This can be a great solution for sites with limited IT staff.
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