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Activity in Technology and Support

Cisco 2821 - Above memory requirements. What happens?

Hello.I currently just got a Cisco 2821 with CallManager(8.6) installed and IOS(15.1M) and ADVENTERPRISE installed. It has 512MB of DRAM and 256MB of Compact Flash memory. This device will solely be used for VoIP.I was wondering if it would be enough...

TLS not found

Hello,People can send me emails sometime and I can see that TLS 1.3 was in place, some time same sender is not able to send me email  and get this bounce back alert"The following message to *@domain.com was undeliverable.The reason for the problem:5....

KhanSb by Community Member
  • 97 Views
  • 2 replies
  • 0 Helpful votes

ISE VM in vCenter - not possible to terraform

Is it not possible to terraform a ISE VM appliance in vCenter?Sure, I can give the VM a name, and set resources like disk, cpu, mem, but other things like IP Address, admin passwords, enable API, set NTP servers etc doesn't seem to work.All examples ...

dal by Level 3
  • 33 Views
  • 0 replies
  • 0 Helpful votes

Upcoming changes to status.umbrella.com

We are excited to announce the latest update to the Cisco Umbrella Status Portal. This update enhances the portal's layout to prioritize customer-requested information. Additionally, it introduces the capability for customers to subscribe to service...

Screenshot 2025-06-30 at 12.37.48 PM.png Screenshot 2025-06-30 at 12.57.36 PM.png Screenshot 2025-06-30 at 12.57.44 PM.png UMB-GLOBAL.png
gfoskett by Cisco Employee
  • 36 Views
  • 0 replies
  • 0 Helpful votes

Decom CUACA Recommendations

We have CUCM 12.5 SR7 and Cisco Attendant Console Advanced version 12.0.5As we have now moved on to a new console solution (keeping the rest of the CUCM stack), I am looking for guides / recommendations / best practices to decommissioning the CUACA s...

NSO and a10 compatibility

Hi,I have just started picking up on NSO and currently we are in process of importing devices to NSO. When i import a10 devices and try to validate simple cli configurations i see that it is actually over-writing and deleting other configs at that le...

Twice NAT over VPN Tunnel to Azure

Hello everyone,Have a potentially interesting issue. We have a datacenter stack that is connected to a Cisco firewall which has a VPN tunnel established to the Azure destination. Inside the Azure network we have our VMs in our resource group with an ...

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UZaman3 by Level 1
  • 106 Views
  • 7 replies
  • 0 Helpful votes

Issues with ports on Stack Cisco C9300X

Hello everyone, I have an issue with my setup. I have two Cisco C9300X-48P switches running IOS version 17.12.9, configured in a stack. The problem is as follows:The switches are connected to servers via dual links (one from each switch), with LACP c...

Hasaki by Community Member
  • 102 Views
  • 3 replies
  • 1 Helpful votes

MPLS - "when/how" does the router build the LFIB

Hello all,I'm trying to determine the exact order of operations a router takes when you run mpls ip on the router, specifically when/how the router builds the LFIB table.The first step I have is that the router takes all the routes in the RIB and ass...

vv0bbLeS by Level 3
  • 77 Views
  • 2 replies
  • 0 Helpful votes

ASR-920-4SZ | 10Gb Port Activation

Hello,  We have couple of Cisco ASR-920-4SZ routers, which we are currently using to connect to the Internet. We are planning to upgrade the access speed to 5Gbps which will require us to use one of the 10G ports. We did purchase the appropriate lice...

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ZK916 by Level 1
  • 102 Views
  • 2 replies
  • 0 Helpful votes

sending message to alerts@ironport.com

Hi Dear Cisco SupportI see an alert " Warning: Failed to connect to remote host 208.90.58.122:25 sending message to alerts@ironport.com " in ESA log and i never configured ESA to send alerts out to this IP address witch is belong to the Cisco. Could ...

group2xxx by Level 1
  • 76 Views
  • 1 replies
  • 0 Helpful votes
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