3850
A quick review of the past switches.
3750 10/100
3750G most of sales remember these.
3750E overpriced 10G uplinks not modular.
3750X They are going EOL so no sense in buying them. {Lower discount, no SPIF, no future proofing}
3850 bread and butter for Cisco campus deployments at all offices/locations {not datacenters}
Can easily displace a 4500 or 6500 and are reliable and stable.
This is what the workflow will look like.
You won't be able to see the details here.
So this is an eagle view.
3850 come in two main forms.
RJ-45 Copper CAT6 style ports that are 10/100/1000 and can be mGig.
or a switch that has SFP or SFP+ {1G or 1/10G}
so that is your first question.
Are you looking for the RJ-45 models
or for the ones that are usually the core and have SFP/SFP+ ports.
Let's start with
RJ-45 copper.
The second question is how many ports.
These are the 24 ports.
You have 4 types.
Simply cut and send to the client so they can pick.
You can let them know.
L are lan base
S are IP base
E are IP services.
The PWR-C1 is the second power - 99% of 3850 buyers should buy a second power.
The power changes based on the switch.
This increases your uptime significantly as power is the first thing to go.
If you want an analogy, the battery on the Porsche is the first thing to break.
A Power Supply is an extra $350-$2000 ish per switch.
The last item are the uplinks.
A switch can have for example either 1G uplinks or 10G uplinks this is modular so they can choose, a switch can also have NO uplinks.
A module is $500 - $4000 extra per switch.
The same questions apply to the 48 ports.
the main difference is you have.
No-PoE
PoE
PoE FULL Power {means more PoE budget as it has bigger power supplies}
UPOE
and UPOE + mGig
If the client wants an SFP/ SFP+ switch use this.
In general an SFP switch will always run 1 Gbps MAXIMUM .
A switch that has SFP+ ports can run either 10Gbps when you put an SFP+
or 1 Gbps when you put in an SFP.
The second question is the number of ports
Third is the Dual power
Fourth is the uplink module.
The 48 port SFP+ has build in uplinks so no need to ask it all the rest you can ask.
When you are done with the switch.
Ask the support level.
Ask for power cords.
Ask for SFP/SFP+ transceivers or 3rd party.
If they ask you what is the difference between IP base and IP Services.
Table 2. Cisco IOS Software Feature Set Differences
If the client bought the wrong thing.
You can have him upgrade using.
L-C3850-RTU= as the container and select the relevant upgrade.
Stacking
9 regular
8 if you have an SFP+ or mGig in the mix.
Stacking is included by default.
In a Cisco Catalyst 3850 stack, all switches should be at the same image-based license (IP Services/IPBase/LAN Base) level.
The active switch license level is considered as the reference, and the member switch licenses are compared against it. If there is a mismatch, the active switch with the syslog message “ license mismatch error” indicates that the stacking was unsuccessful.
The cables of 50 CM are included by default.
So they can BRAID or daisy chain
If they want to daisy chain, they will need to buy one extra stack cable.
The optional ones that are not included are.
STACK-T1-50CM= $100 {included for free with every Cisco 3850}
STACK-T1-1M= $200
STACK-T1-3M= $300
Stackpower
Cisco 3850
Maximum of 4.
So you can use 3+3+3 or 4+4
LAN base switches do not include the default 30 CM stack power cable.
CAB-SPWR-30CM= $95 {included for free with every IP base and above 3850}
CAB-SPWR-150CM= $195
For every 3 or 4 sell a 150CM.
There are two modes you can run this.
Power Sharing adds all the power supplies to a pool.
If a power dies then devices might power down.
For example
3850-48P = 435 +48F = 800 +48P = 435 total 1670 PoE.
If the 3850-48F 800W power dies.
1670-800 = 870 PoE budget
So some device might be powered down.
Redundant mode.
3850-48P = 435 +48F = 800 +48P = 435 total 1670 PoE.
One 800 is put in backup.
So PoE budget is 435+435 = 870 for all three
and if one power dies, the 800 takes over and the budget is kept.
A switch can also disable stack power ports and be a loner and not participate.
A 3850 can save the cost of buying multiple power supplies
by using an XPS.
XPS is another item you can sell.
It will run the backup instead of Dual power.
Rackmounting.
The Default Accessory includes the 19 inch rack mount only.
C3850-ACC-KIT= $50 {included for free}
The following is the table.
If you want ETSI, 23 inch or 24 inch you order the RACK-KIT
C3850-RACK-KIT= is $250
If you want to 4 post mount it.
the 3850-4PT-KIT= $250
These allow you to mount the switch to 4 posts of the rack.
Power Cords
350W use
C13
715 and 1100W use
C15
HOWEVER all of the power cords seem to be C15 which can be plugged into C13 fine.
They are 8 feet if you need a BAFO replacement.
SFP compatibility
http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/GE_Tx_Matrix.html
SFP+ compatibility
http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/10GE_Tx_Matrix.html
QSFP+ compatibility
http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/40GE_Tx_Matrix.html
Saar