Dependig on the size of your network and your requirements, you could have a combined core/distribution layer consisting of 2 switches, and each switch on each floor has 2 links (one link going to each core/distribution switch) that are in an EtherChannel. The core/distribution switches will have 2 links going between them. Also, remember to set the spanning-tree priority on the distribution switch that is to be the root bridge.
Please remember to rate and select a correct answer
There are many correct answers for the limited information you provided. Marius' suggestion is one. The general layout of access layer (local switches on each floor) and collapsed core/distribution switch is pretty typical and a good recommendation for this size of network.
For more details, can you tell us:
- number of users per floor
- whether 1 Gbps (or multiple 1 Gbps ) or 10 Gbps is desired leaving the local switch(es)
- whether you have fiber between floors and is it 10 Gbps-capable (OM3 or better specification)
That gets us closer. So each floor (except ground) has >48 users = the number we can support from a 1RU switch. So we would typically put a 2-switch stack.
For this size of network, Cisco 2960X would be a good choice. They can do PoE at various levels - see table 6 of the product data sheet for options. Each switch can have dual power supplies of desired and your links to the core switch can be from separate stack members. You could use 2 x 24-port model for the ground floor.
Your core would need to handle 10 x 10 Gbps links. That's going to require a bigger switch - we typically see mid-sized campus's using the 4500X for this function. For redundancy you would put a pair of 4500X in a VSS cluster. That way they logically act as one switch and all of your floor switch uplinks can be bound into a 20 Gbps Etherchannel giving maximum bandwidth and resiliency. The 4500X data sheet is here. You would need the entry level model, WS-C4500X-16SFP+.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...