Discuss Catalyst brand switches with peers and experts.
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Hello Team,I am doing POC for customer with below operating IOS code on Cisco 6500 s2t54-advipservicesk9-mz.SPA.151-1.SY.binreceiver receives a delay in receiving the multicast stream.Does the above operating system support PIM Graft messages ( recei...

gd.dhiman by Beginner
  • 1 replies
  • 0 Helpful votes

Hey there I have some catalyst 1000's 4 stacks of them, that are unable to be pinged.  They are also unable to sych with NTP.  They are switching everything like they should.  I can connect to a wireless AP directly attached to any of them, or a port...

casedaycd by Beginner
  • 4 replies
  • 0 Helpful votes

Resolved! VLAN protocol down

Hi all,On a multilayer switch, my VLANs are down. I have read other posts about what to do but I can't seem to figure it out. I have created VLANs for the interface VLANs but that didn't work. I have also reinstalled packet tracer as I read that cisc...

Mykematt by Beginner
  • 6 replies
  • 0 Helpful votes

Hi, I'm looking to deploy a stack of catalyst 1000 series switches, specifically the 1000-48P-4G-L switch.I would like the stack act as the gateways for the VLANs, and do inter-vlan routing. How many SVIs are supported? I've tried doing some research...

Have anyone tested getting GLC-GE-100FX working on NM-4G in a Cat 9200? Have tried with ver 16.12.4 and 17.3.4b. In both cases show inventory looks a bit strange: No PID is read from the SFPswitch#show inventoryNAME: "c92xx Stack", DESCR: "c92xx Stac...

sokarlsson by Beginner
  • 14 replies
  • 0 Helpful votes

Hi all,  I'm seeing intermittent "%L2FM-2-L2FM_MAC_FLAP_DISABLE_LEARN_N3K: Loops detected in the network for mac" errors on a Nexus 3548 (on 9.3(9)), in a vPC pair, connected to another vPC pair directly via L2 at another site. The switch is SITE2-CO...

Network Map.png
MitchQuad by Beginner
  • 5 replies
  • 0 Helpful votes

I have a 9500 12Q with nothing but 40GB QSFP ports running 17.3.4.  I've purchased a breakout cable to take the connection to 4x 10GB connections and have been attempting to follow the directions in the following linkhttps://www.cisco.com/c/en/us/td/...

markmcg87 by Beginner
  • 5 replies
  • 0 Helpful votes

Hi experts!I am looking to free up space on some flash for some 3750-X switch stacks with very old IOS on them.  They are in production.Is it okay to remove the .tar file from the sub-directory of each flash?For example I have a stack with 12.55.se5 ...

Paddy S by Beginner
  • 8 replies
  • 0 Helpful votes

After installing a GLC-GE-100FX SFP module in a new switch running 12.2(44)SE, I notice that the Gi0/1 interface no longer allows changing duplex. I've not found any information online to describe this as a limitation. Can anyone explain this?Here ar...

triaton by Beginner
  • 6 replies
  • 0 Helpful votes

Hi folks,we have a 9300 switch, every port ist configured to use port security with one sticky MAC-address and everything works fine. Now we like to do some checkings in our network using a test tool from FLUKE. As soon as I connect and start testing...

drehstrom by Beginner
  • 5 replies
  • 0 Helpful votes