Let me start by giving a brief description of our situation:
We have aquired new space in our DR facility that is not in our current cage. A new fiber run was installed to our new space. Roughly 500'-700' run (Multimode OM3 fiber was used). There is no copper between the cages due to the distance.
We have one 5010 on the existing side connecting to a 5010 in the new space using 2 fiber links, port channeled. We are using SFP-10G-SR's on those links.
Since there is no copper connections, we have the management port of the second 5010 plugged into itself using a SFP-GE-T EXT.
Here is our problem.
We cannot ping the management IP of the new space 5010. I can see it in CDP, links are up. I plug in a laptop to the new space 5010 (it has a FEX attached) and I can ping that from the local (new space) 5010, but not across the fiber.
I have default gateway set.
Any ideas? Can the management port be plugged into the same switch it resides on? Do I need different SFP's between the 2 cages?
Don't waste your time trying to troubleshoot that setup as it is completely useless anyway. If you lose your fex or the inband connection to the N5k, the whole switch is no longer reachable, thus the mgmt port does not offer you any benefit at all so why bother with it?
In a big datacenter environment you'd have a dedicated out-of-band-network where you'd connect the management port to. If this is outside your scope then simply define a management vlan and configure an SVI to do inband management. In that case just ignore the mgmt port.
For your SVI problem: check if the corresponding vlan is allowed on the fiber trunk in both directions. Check if the VLAN interface is up.
Cisco DNA Center version 2.2.2.x includes the features and improvements that
New intelligence provides an easy, gradual, and complete adoption of SD-Access. Faster Cisco DNA Center set-up saves time and effort.
When using Cisco cellular modules with a SIM card an APN must be provided. The APN cannot be stored in the SIM card and is supplied by your SIM card provider. Cisco cellular software contains a database of well-known APNs based on the country and ...
Cisco 3850: IOS-XE/Firmware Upgrade
This procedure is aimed at Cisco 3850 switch ONLY.
IOS-XE Bundle Mode is not covered.
9300, 9500 (vanilla & high-performance), ISR 1k, ISR 4k and ASR is not covered.
Listen: https://smarturl.it/CCRS8E46Follow us: twitter.com/ciscochampionsIt’s been several years since the release of Cisco DNA Center, and it’s matured into a complete network management system, an automation and orchestration engine, an AI/ML analy...
The 2021 IT Blog Awards, hosted by Cisco, is now open for submissions. Submit your blog, vlog or podcast today. For more information, including category details, the process, past winners and FAQs, check out: https://www.cisco.com/c/en/us/t...