Activity in Technology and Support
OSPF: premature flushing vs. normal expiration of an LSA
Every LSA in the OSPF LSDB carries an LS Age field, expressed in seconds. This counter increments continuously as long as the LSA remains in the LSDB — this is called aging. It exists for a simple reason: to let each router know whether a piece of to...
Cisco C1300-24T hardware revision update
Hi,we are using the Cisco C1300-24T-4G for some time and recently we found out that a new hardware revision has been released. The PCN Cisco provided states that only the label "country of origin" changed but we run into problems when we install firm...
UCCX Licenses Expiring soon
Hi Team,We have a Cisco UCCX HA deployment running version 15.0.1.10000-27.Following an upgrade from UCCX 12.x to 15.x, the system was operating on an evaluation license. When the evaluation period had 5 days remaining, we installed a temporary licen...
Cisco UC Esxi NIC
We have cisco business edition we have 2 interfaces as nic teaming connected to 2 leafs aci individual ports same configuration, the issue is when connect second port i lose connectivity with esxi when shutdown one port i can ping esxi, what could be...
Underlay Network OSPF Design dans VXLAN EVPN
The underlay network is an essential foundation in a VXLAN EVPN fabric, and understanding the control plane used in this part is crucial. The OSPF routing protocol is by far the most widely used to ensure VTEP connectivity, making its optimization es...
Secure Client 5.1 chooses Wi-Fi over LTE after Wi-Fi Direct
# Cisco Secure Client 5.1 – Always On VPN disconnects when connecting to a Wi-Fi Direct printer while the LTE connection remains activeI'm investigating what appears to be an interface selection issue in Cisco Secure Client 5.1 and would like to know...
Call Manager 11.5
We require a Wi‑Fi telephone to be used with Cisco Unified Communications Manager (CUCM) 11.5. Is there any model currently available for purchase through Cisco that remains compatible with this version? Thanks
notification to a mobile phone 20 minutes no longer working
We are experiencing an issue with our Cisco Call Manager and Cisco Unity connection (14.0.1) setup.The Helpdesk extension is configured as a Hunt Pilot and is forwarded to voicemail when unanswered. The voicemail box is configured to send a notificat...
Catalyst Center failing to access switches due to blank credentials
Hello all,My org has begun the process of onboarding switches using Catalyst Center PnP. I'm having an issue where Catalyst Center suddenly cannot access the CLI of an onboarded switch. I'm getting errors saying authentication failed. Specifically:%S...
Cannot login to CCIE booking page
I couldn't login to CCIEOlnline page to book IE exam, the error shows as below. I have opened few of the Certificate related ticket with Cisco, however, no any update for the past weeks. All the requests now divert to AI and no help at all. https://c...
Cisco 2960G Switch fiber uplink port autometically admin down
Dear team, my lan invironment cisco 2960G Switch installed. Node1 connected to Node 2 With fiber cable with cisco cisco fiber module. I observed in log Node 1 downstream port autometically admin down and due to this issue network is disturbed. Even I...
Resolved! CML-free iosv issue Ubuntu
Dear community, I have an error which i could not start Labs from Wendell Odom Certskills.com in my vmware workstation pro. Previously i Use windows 10 , there is no issue but when i switch to Ubuntu, i got this error : Failed: Error importing topolo...
CSCws66419 - Unexpected Reload due Smart license activation
Just wanted to added for the people. Register the WLC license might reboot the VM/appliance has soon you enter the command with the token. Something like this shouldn't cause production downtime. Not looking good Cisco on this.Sad to say that it's no...
Catalyst 9800-40 IOS-XE 17.15.5 -EasyPSK/iPSK WLAN never becomes a BSS
Hi,I'm trying to deploy an EasyPSK/iPSK WLAN on a Catalyst 9800-40 running IOS-XE 17.15.5. The target RADIUS server is PacketFence 15.1, but the problem occurs before any RADIUS communication.EnvironmentC9800-40 HA SSOIOS-XE 17.15.5C9120AXI-ECentral ...
ACI endpoints periodically not reachable
Hi all. My organization's VMWare Team has hypervisors distributed all over our ACI fabric. All the hypervisors have a management network that allows them to communicate with vCenter. Recently (about 2 weeks ago) all the hypervisors started to peri...
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