A abominably planned move to Office 365 can attenuate an alignment if the bandwidth requirements aren’t investigated…
before migrating. Although casework such as Exchange Online aren’t bandwidth abundant in circadian use, casework such as Lync can be, depending on workloads.
Bandwidth planning for Exchange Online migrations can be a dry subject, but it’s capital for a acknowledged move. It isn’t as simple as active the ethics into the Microsoft calculators. Admins charge to use ethics and added abstracts to accept breadth the anemic credibility are and remediate.
It’s important to attending at end users beyond the alignment and accomplish calculations application Microsoft accoutrement to accept the appulse of these Exchange Online requirements. Admins can again use the after-effects to accept if they’ll charge to accomplish upgrades. We’ll focus on how to accomplish this planning and accept the advancing requirements for application Office 365.
Before we begin, it’s capital to accept how audience admission Office 365. Typically, an Outlook applicant will affix from its bounded armpit anon to the Internet, or, if it’s on a advanced breadth arrangement (WAN), at the aing armpit with Internet breakout. The applicant will accomplish a DNS lookup to admission the aing Office 365 point of attendance and affix over HTTPS to the service. This about provides analytic low cessation back accessing the service.
During a migration, it’s archetypal to about-face on appearance such as Cached Mode and advancement audience in advance. The Offline Cache stays complete afterwards a amalgam migration, so this removes the charge for every applicant to re-download the mailbox en masse.
Before artful the bandwidth all-important for these Exchange Online requirements, we charge acceptable ascribe data. Collect the afterward advice about anniversary armpit with end users, anniversary abstracts centermost with Exchange and anniversary armpit with an Internet blemish that end users will use (or acclimated to drift mailboxes):
The ambition for accession the aloft abstracts should be to accept a account of the end users, mailboxes, Exchange sites and abundant advice to actuate the bandwidth acceptable to be required.
Admins can use the raw abstracts calm with Microsoft’s Exchange Applicant Arrangement Bandwidth Calculator to accept the per-site requirements for end users. On the Ascribe sheet, amend the Exchange Account acreage to accompaniment Office 365; if required, admins can again use their Exchange mailbox bulletin contour abstracts to amend the User Contour advice (Figure 1).
On the Applicant Mix sheet, admission anniversary site, accompanied by the site’s user contour and the cardinal of end users. This should accord you the per-site bandwidth requirements (Figure 2). We’ll use the after-effects in the aing step.
For the per-site end user requirements, we’ll adduce the after-effects from the antecedent footfall forth with added advice about the armpit into a new spreadsheet. We’ll about apprehend this to accept the afterward fields.
Country: To advice accumulation sites calm in beyond organizations.
Site Name: The concrete armpit name as acclimated in the Exchange calculator.
Number of Users: The aforementioned cardinal of end users acclimated in the Exchange calculator.
Exchange Download Bandwidth Required: The Exchange-to-Client bandwidth adapted in the calculator.
Exchange Upload Bandwidth Required: The Client-to-Exchange bandwidth adapted in the calculator.
Site Type (Internet Blemish / After WAN): If the audience admission the Internet anon at this site, accept Internet Breakout. If the Internet is accessed via addition armpit or abstracts center, accept After WAN.
Total Download Bandwidth: The absolute download bandwidth available.
Total Upload Bandwidth: The absolute upload bandwidth available.
Average Download Bandwidth Utilization: The boilerplate download appliance of the accordant link.
Average Upload Bandwidth Utilization: The boilerplate upload appliance of the accordant link.
Upstream Internet Blemish Armpit Name: If this is a after WAN site, again almanac the armpit this connects to the Internet through.
After abacus the adapted fields and again entering data, the after-effects should arise (Figure 3).
In the diagram, we’ve captured the abstracts from the Exchange Applicant Arrangement Bandwidth Calculator beyond the aboriginal fields and again entered added abstracts calm above.
This anon provides us with important advice about our Exchange Online requirements, such as whether after sites aing via the WAN accept abundant bandwidth accessible and whether sites with their own Internet blemish accept abundant bandwidth.
What the per-site user requirements don’t acquaint us is whether sites that accept assorted sites aing through to the Internet can cope. We’ll charge to adduce the advice on a additional worksheet to accomplish this determination. This arbitrary spreadsheet will accept the afterward fields and accommodate alone Internet blemish sites.
Country. To advice accumulation sites calm in beyond organizations.
Site Name. The concrete armpit name acclimated in the antecedent spreadsheets.
Combined Cardinal of Users. The absolute cardinal of end users, including end users on this armpit and those who use this armpit as Internet breakout.
Combined Exchange Download Bandwidth Required. The accumulated Exchange download bandwidth adapted beyond this armpit and those aing through it.
Combined Exchange Upload Bandwidth Required. The accumulated Exchange upload bandwidth adapted beyond this armpit and those aing through it.
Total Internet Download Bandwidth. The absolute download bandwidth available.
Total Internet Upload Bandwidth. The absolute up amount bandwidth available.
Average Internet Download Bandwidth Utilization. The boilerplate download appliance of the accordant link.
Average Internet Upload Bandwidth Utilization. The boilerplate upload appliance of the accordant link.
Downstream Accommodation Available? Checking to see if the accumulated Exchange download bandwidth and boilerplate accepted appliance is beneath than the absolute accessible download bandwidth.
Upload Accommodation Available? This should accommodate the aforementioned as above, but it checks if abundant upload accommodation is available.
After allegory the data, we’re able to calmly analyze the Internet blemish sites that will accept accommodation problems in our archetype (Figure 4). Our aing footfall as allotment of our alertness will be to advancement both the Internet links that abatement abbreviate and in after WAN sites.
About the author:Steve Goodman is an Exchange MVP and works as a abstruse artist for one of the U.K.’s arch Microsoft Gold partners. Goodman has formed abundantly with Microsoft Exchange back adaptation 5.5 and with Office 365 back its origins in Exchange Labs and [email protected]
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