Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Hello Cisco community, I have an issue with IOS upgrade for WS-C2960X-24PS-L in the stack.After the reload , switch still boot up with the original IOS 15.2(6)E2 , not with requested IOS c2960x-universalk9-mz.152-7.E3.bin MD5 checksum is OK. Other ...
Resolved! C3650 Upgrade licencing issue
Hi guys, We're upgrading our Cisco network devices from old software versions to new ones - however this now means we need to convert to Smart licences. On the C3650s, we are moving to 16.9.6, and the device we're testing on has gone into EVALUATION ...
According to Command Reference, Cisco IOS XE Fuji 16.9.x (Catalyst 3850 Switches) - Stack Manager and High Availability [Cisco Catalyst 3850 Series Switches] - Cisco I can use "session" command to access the diagnostic shell of a specific stack membe...
Hi All,I am using packet tracer and am simply trying to enable some standard ACL's on the switches.I am wanting to follow the Deny all principle then permit what is necessary. I wish for the following to communicate:CORP Client - Internet AccessCORP ...
HI,I wanted recently replace 2 x 2960-x stacked switches with 2 x 3850-x stacked switches, I "copied" configuration from 2960 to 3850, however after booting up iSCSI interfaces didn't come up (however all interfaces were green) , I restarted switches...
Do you know if any outage is expected when changing LACP rate from slow to fast?Any experience or information would be appreciated.Also please advise if there's any test environment lab to check this kind of configurations.
Dear expertsGood day and I hope you are doing wellWe have some industrial cisco switches for CCTV connections for some reason we need to replace with switches for other brand,We will use 4-Port Ethernet and 2-Port SFP to complete the ring topologyOur...
Hi to alli want to be noticed that what happens when root bridge for a (V-LAN) fails and new root bridge elects what are the consequences in live network?I mean do we face link up/down and convergence time on the root port or the designated ports tha...
I can ping IP x.x.x.x from a Cisco router, but I am trying to figure out the path the ping packet takes from the router to the destination IP. Guidance is appreciated, thanks! sh arp | i x.x.x.xNo results. x.x.x.x is not in the routing table:show ip ...
Resolved! C9300 Stack OS Upgrade non-downtime
Hello.I am running a stack of 2 C9300s.The OS is using 16.12.14, which will be a problem when upgrading the OS later.I know that all switches are rebooted when upgrading in the stack state.SwitchingI thought of the following as a way to minimize down...
So came into remote office to find that for some reason connect to specific subnet over in remote site. Few weeks ago we've redone some of our networking and as part of that HSRP was put in place between 2 l3 switches, all worked fine and dandy. But ...
Hello,we will replace some old C6509 with new C9410.A lot of 1G fiber ports with optics are included and the customer does notrequire 10G. I was thinking reusing the existing optics GLC-SX-MM for the newlinecards C9400-LC-48S, however the TMG tool do...
Hello we will be upgrading a pair of C6807-XL, for a client.We will go for the ''Fast Software Upgrades'' since it's the safest upgrade and the VSS is not is full production so we can have small down time.Upgrading from 15.5.1-SY5 to 15.5.1-SY6.We c...
I have a network made up of Cisco 9300, 2960G/C/X/XR and a 3560CX. None of the switches are more than 7 hops away from each other and I can generally ping or SSH into any of the switches without a problem. I have been having issues lately with connec...
