Activity in Technology and Support
UCS 240 M4: Intel 810 NIC rejects CISCO-100G-LR-S - exceeds power req
HI TeamOn an UCS M4, the Cisco OEM Intel 810 NIC rejects the Cisco-100G-LR-S Module with thiserror message "The module's power requirements exceed the device's power supply. Cannot start link".This LR-S Module advertises its power as 4W.Intel Release...
Lightweight Access Point Clock
HiI have an HA pair of 9800 WLAN Controllers configured with a timezone and BST summertime:clock timezone GMT 0 0clock summer-time BST recurring last Sun Mar 2:00 last Sun Oct 2:00They get their time from NTP and everything looks good for the associa...
Resolved! MS Direct routing with CUBE - not working any direction
Hi, I am trying to setup voice connection between Microsoft Teams (Direct Routing) and Cisco (CUBE + CUCM). Scenario 1: Call from CUCM to Teams: CUBE send INVITE to all three MS servers, but we get no response Scenario 2: Call from Teams to CUCM: MS ...
Upgrade Cisco UCM Cluster 15 to SU5 failed on one subscriber node
Hi,the upgrade cluster stucks on one subscriber node at databaseInstall. All other nodes running through fine.We canceled the upgrade cluster on the publisher, restarted all servers, wait for replication all is fine. Then tried to upgrade only the fa...
Cisco NFVIS for Calling & UCCX
Hello,I am currently working with a customer who needs to migrate their UC applications from VMware to Cisco NFVIS due to VMware licensing challenges.Their current environment is deployed on a BE7K M7 server and includes CUCM, CUC, IMP and UCCX Wh...
upgrade C9500-48Y4C core SVL from 17.3.5 to 17.15.6
ineed to upgrade C9500-48Y4C core switches SVL Active and standby from 17.3.5 to 17.15.6 without any corruption - my mode is bundled because BOOT variable = bootflash:cat9k_iosxe.17.03.05.SPA.bin; what the safe process to make that upgrade succes...
Virtual Appliance - Introducing IPv6 support
Starting Saturday, October 17th, 2026, Virtual Appliances (VA) will now support IPv6.On Saturday, October 17th 2026, IPv6 support will be rolled out to the Production-1 track.On Saturday, October 31 2026, IPv6 support will be rolled out to both the P...
How does Router knows which device to send messages to
As far as i know routers does 2 thingsUse the shortest paths when sending frames.Send messages to outside devices using the 1 IP adress it recived from the ISP.I seached into why we just can't use switches if switch-to-switch communication works. Mos...
Starlink Bypass Mode a no go?
Unsure if this is an MX or Starlink issue, however to avoid the obvious negatives of double NAT and two DHCP servers on a network, I put the Starlink router (gen 3) into bypass mode so that the MX68 it is connected to can perform routing/DHCP/NAT dut...
Resolved! CML and IOL VXLAN
Hi,I'm trying to create a simple 'static' VXLAN lab in CML using two IOL images as VTEP endpoints. I have an unmanaged switch between the IOL images and an Ubuntu client hanging off of each IOL image (see image below):OSPF is running on r1 and r2 and...
official E10 image for WS-C3560CG-8PC-S
I would appreciate any help with this.I am trying to find the last image pushed by cisco. I know this is an extremely old piece of equipment, but I have it and would like to use it for a home lab. The most recent post on here says the file name would...
Unable to connect to ACI always-on
I am unable to connect to my lab environment. I got "An error occurred during a connection to sandboxapicdc.cisco.com. PR_END_OF_FILE_ERROR". what is the way to resolve the issue?
Resolved! IOS XR Always On Connection Timed out error.
I am getting timeout error from Linux VM.ssh [email protected]: connect to host sandbox-iosxr-1.cisco.com port 22: Connection timed outGot similar error for gnmic.Is it possible to fix the issue permanently, also the workflow attached ...
Resolved! WIFI ACCESS ISSUES
Subject: Intermittent SSID Connectivity Issues – Cisco C9130AXI-E APsWe are currently experiencing an issue where some users are unable to connect to the SSID, while others who are already connected are being intermittently disconnected.The environme...
How to Obtain the Official Cisco SGMII Specification Rev.1.8
Hello Cisco Community,I am looking for the official Cisco Serial Gigabit Media Independent Interface (SGMII) Specification, document ENG-46158, Revision 1.8.I found references to the original Cisco FTP server (ftp-eng.cisco.com), under the /smii/ dir...
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