How Is Software Managed in Cisco SD-WAN?

Describe software image management from SD-WAN Manager

Answer Correct answer: C — In Cisco SD-WAN, software images are managed through the vManage Software Repository and uploaded via HTTP or FTP for distribution to controllers and WAN Edges.

How is the software managed in Cisco SD-WAN?

Software upgrade operation in the group must include vManage, vBond, and vSmart.
Software downgrades are unsupported for vManage.
Software images must be uploaded to vManage through HTTP or FTP. Correct Answer
Software images must be transferred through VPN 512 or VPN 0 of vManage.

Community Insight

The question tests the vManage Software Repository as the software-management hub, and the trap is choosing a true-sounding caveat about controller group upgrades or vManage downgrades instead of the image upload and distribution model.

Cisco SD-WAN centralizes software image management in the vManage Software Repository, where images are uploaded via HTTP or FTP and then distributed to controllers and WAN Edges. This page confirms option C as the correct 300-415 answer and explains why controller group upgrades, downgrade limits, and VPN constraints are not the governing mechanism.

Many learners pick B because they know vManage cannot activate a lower major release, but that narrow downgrade restriction does not answer how software images are managed and distributed in Cisco SD-WAN.

Community Discussion (13 comments)

westh4m1234 👍 1 Selected: C

No, software downgrades are strictly unsupported for Cisco Catalyst SD-WAN Manager (vManage)

eojedad 👍 2 Selected: B

Software images are uploaded to vManage via HTTP or FTP, and then vManage handles the distribution to other devices.

eojedad 👍 1

Sorry C

encorexam 👍 1 Selected: A

✔ Controllers are upgraded as a group ✔ WAN Edges are upgraded separately

2e6bc5f 👍 1 Selected: C

In Cisco SD-WAN, vManage is responsible for managing and distributing software images to all the SD-WAN components (vEdge/cEdge, vSmart, vBond, etc.). • Software images are uploaded to vManage via HTTP or FTP, and then vManage handles the distribution to other devices. • Option A is incorrect: You can upgrade devices independently; you don’t have to include vManage, vBond, and vSmart all at once. • Option B is incorrect: Downgrades are possible, though not typically recommended and should be handled carefully. • Option D is misleading: VPN 0 is used for transport, but image uploads are done via HTTP/FTP directly to vManage’s GUI or API.

RafaJohnston76 👍 1 Selected: C

https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/Monitor-And-Maintain/monitor-maintain-book/maintain.html

soltani 👍 1

B is correct A version downgrade from a major release to an older one, it is not supported in vManage. https://www.cisco.com/c/en/us/support/docs/wan/dpt/220424-upgrade-sd-wan-controllers-with-the-use.html

nbvolz 👍 3

Answer: C Manage Remote Server From the Cisco vManage menu, choose Maintenance > Software Repository. For the desired remote server, click … To view the remote server settings, click View Details. To edit the remote server settings, click Edit. Edit any of the following settings as necessary and click Save. Note You cannot edit the remote server settings if you have added locations of any software images on the remote server to the Cisco vManage software repository. If you wish to edit the remote server settings, remove the software image entries from the software repository and then edit the settings. Server Info Server Name: Enter a name for the server. Server IP or DNS Name: Enter the IP address or the DNS name of the server. Protocol: Choose HTTP or FTP.

timtgh 👍 1

People keep saying B. B is wrong - Downgrades are supported, just not to an earlier major version. A and D are also wrong. As NetArch has said, C is correct, as per linked documentation.

AJMD 👍 1 Selected: B

B is correct

NetArch_Teck 👍 4

Option [C] is the answer! A is wrong software upgrades does not have to included VManage B is wrong, downgrades are supported in VManage D is wrong Service VPN are permitted to transfer software images Cisco link reference:- https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/Monitor-And-Maintain/monitor-maintain-book/maintain.html

hamidreza0010 👍 1 Selected: B

B is correct

Roger95 👍 3 Selected: B

Tech tip: Once upgraded, It is not possible to downgrade vManage to a lower major release. For example, if you are running an 18.3.x release, you cannot downgrade to an 18.2,x or lower release. While you can install a lower code version onto the vManage server, you will not be able to activate it. https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/SDWAN/SD-WAN-End-to-End-Deployment-Guide.pdf

Comments & Corrections

No comments yet — spotted an error or have a note? Share it below.

Expert Analysis

Why the Answer Is Correct

Software image handling in Cisco SD-WAN is centralized on the SD-WAN Manager: images are placed in the vManage Software Repository and then distributed to controllers and WAN Edges. The repository accepts images through supported transfer methods such as HTTP or FTP from a remote server, which is exactly the management model option C describes. That makes C the only option that answers how software is managed at the repository and distribution level rather than describing an upgrade constraint. NetArch_Teck and 2e6bc5f both point to this vManage-centric repository model and to the Cisco maintain guide.

Why the Other Options Are Wrong

A is too rigid: controllers are often upgraded as a group, but the question asks how software is managed, and not every software operation must include vManage, vBond, and vSmart. B overstates the downgrade rule; vManage has restrictions on activating a lower major release, but that is a narrow upgrade caveat, not the software-management mechanism. D invents a VPN constraint: service VPNs can carry image transfers, so images are not limited to VPN 0 or VPN 512 of vManage. This is why the comments that chose B focused on a true-sounding caveat rather than the actual repository workflow.

Community Comment Notes

NetArch_Teck pointed to Cisco's maintain guide and noted that "Service VPN are permitted to transfer software images," which directly undercuts option D. nbvolz quoted the vManage Software Repository path from Maintenance > Software Repository, matching the centralized repository concept. Roger95 and soltani raised the vManage major-release downgrade limitation, but that point supports rejecting B as the answer to this broader question. 2e6bc5f summarized the workflow as upload to vManage via HTTP or FTP and then distribution to other devices.

Official Reference

Exam Strategy

Anchor software-management questions to the vManage Software Repository and its role as the central image store that distributes to controllers and WAN Edges. Eliminate options that impose unnecessary upgrade-group membership, broad downgrade bans, or VPN-specific transfer limits.

Frequently Asked Questions

Why is option A wrong if controllers are upgraded as a group?

A controller group upgrade does not mean every software operation must include vManage, vBond, and vSmart; the question asks about image management, where vManage's repository is central.

Does vManage really disallow all software downgrades?

vManage cannot activate a lower major release after an upgrade, but that caveat is narrower than option B and does not describe the normal HTTP/FTP upload and distribution workflow.

More 300-415 FAQ →

Related Analysis

Practice All 300-415 Questions

Access 120 questions with complete answers and detailed explanations.

View Full 300-415 Practice Test →

← Back to 300-415 Study Guide