In the standard Cisco model with Access, Ditribution and Core switches, running Layer 2 between Access and Distribution, and Layer 3 between Distribution and Core where should the HSRP Active and PVST roots be.
i.e for the attached diagram, which distribution switch should be the spanning tree root for VLAN 10,110 and should the same device have priority for the HSRP group.
One thing you may want to consider in your design is swapping out your L2 link between distribution switches for an L3 link.
Historically, network designs included a L2 link between distribution switches in order to accommodate VLANs that SPAN access layer switches. Since your design limits any particular VLAN to a single access switch, killing that VLAN on the trunk between distribution switches would cause both of your uplinks to move to forwarding!
There are plenty of benefits to this, including:
-Load-sharing over both uplinks
-No STP convergence delays
-Less likely to run into L2 loop
Now since you're already doing load-sharing by alternating voice/data VLAN HSRP primaries, leaving HSRP in this design wouldn't add any bandwidth. Implementing GLBP however on these VLANs would allow both the voice and data VLANs to share both uplinks.
Wherever your layer 3 connections are is where your HSRP should be cofigured. In your exxample, it would be on the distribution switches. The root of the spanning trees should be configured on the distribution switches that are the active HRSP for that vlan..
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...