Activity in Technology and Support
UCS 5108 Blade not recognized by 6332 FI's
Hi all,I recently purchased a 6332 FI, Nexus n9k switch, and a 5108 chassis with 8 b200 m5 servers. I have 4 of the breakout cables that were used by the school when they had it deployed for training, and those I am running from Port 1 and 2 on the F...
Secure and Resilient DNS Service with Cisco Umbrella
Let's take some time to reflect on the importance of a DNS service. It's what translates website names like cisco.com into the IP addresses computers need to find them. If this system breaks down, nothing works – applications stop, employees can't d...
Adding second 150AX to network not working
I have a small office network with an existing CBW150AX-E-EU AP. I'm trying to add another CBW150AX-B-NA AP to the same network. It is a single VLAN network with a switch and an ISP router with DHCP service.The new AP powers up and boots to a conditi...
DevNet Sandbox Down Since Yesterday — Any ETA for Service Restoration?
Hi Team,I have been trying to access the Cisco DevNet Sandbox since yesterday, but I keep receiving an error message. Could you please confirm if there is any ongoing maintenance activity and provide an estimated timeline for when the service will be...
"ip tcp mss-adjust XXXX" on ASR920 (v17.12.04) BDI
Hi,I work for an ISP.I’m currently investigating an upload transfer drops/slowness issue for a customer of ours, which is fixed by reducing the source’s MTU from (ethernet’s default) 1500B to 1464B but it’s not convenient for them to do this on all t...
N7K replacement
HiWe are looking for recommendations for replacing our existing N7K.Is someone able to guide us in the right direction...This is the current build:Mod Ports Module-Type Model Status--- ----- ------------------...
Cisco ACI Change Default Admin User
Is it possible to disable/delete/lock the default admin user account on APIC by another account with the same privileges? I tried doing so and I got this error:
Resolved! Can't downgrade AP 1562 image from WLC C9800 to C5508 Controller
Hi, I am having problem re-associating an AIR-AP1562E-Z-K9 access point after it was previously associated with a C9800 controller. The AP is currently running image version 17.12.5.41 and is unable to join back to a Cisco 5508 controller running ver...
pvlan community on trunk to server
I have pvlan trunk port facing router with some pvlans, primary and isolated vlans. I also have access (community) and trunks with isolated ports and this all works ok. Problem is that I need to have trunk port facing host that utilize normlal and co...
Unable to Click Answer ~ Results in a RONA
Agents are using the WebEx CC App. Many times our agents will receive a call, the option to click answer pops up, but when the agent click the answer button, it will issue a RONA. The audit report shows the call was presented to the agent for the def...
Public certs removing client authentication breaking Expressway
I just received my first publicly signed certificate that does not include the client authentication key usage. Apparently this is an industry change happening: https://www.sectigo.com/resource-library/tls-client-authentication-public-ca-end-2026#...
Internal calls one way audio
Hello Experts,We have 5 digits internal calls from site A to siteB . Site A hears site B but not in the revers direction. Attached is the WireShark capture.Many thanks, MK
bgp suppress-inactive
Hi,I am unable to think of scenarios where suppress-inactive is of any use.I understand what the command does and how it works, i.e. suppress rib-failed BGP learned routes due to an IGP with a lower AD being in the RIB and whose next hop differs from...
Resolved! Can not get Internet Access [or nat translations] on my ISRC1111
Hello I am working multiple setups but this one was supposed to be easy, until it was not. I am sure I am overlooking something tiny, but nevertheless. Long story short; here is my config and I get not get any NAT translations and or any internet a...
Software upgrade procedure
Could someone help me with software upgrade for IE-3100-8T2C from Cisco IOS XE Software, Version 17.12.02 to Cisco IOS XE Software, Version 17.12.05, unable to find exact steps online
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