We are observing issue with stack ports/cables on our Cisco 3750 switches.Stack port keeps on flapping every second. Can anyone please advice anything.Switch 1 WS-C3750G-48TS-SSwitch 2 WS-C3750G-48TS-SSwitch 3 WS-C3750G-24T-SMay 29 06:59:51.262 IST: ...
Switching
Discuss Catalyst brand switches with peers and experts.
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
- Cisco Community
- Technology and Support
- Networking
- Switching
Options
- Mark all as New
- Mark all as Read
- Float this item to the top
- Subscribe
- Bookmark
- Subscribe to RSS Feed
- Threaded format
- Linear Format
- Sort by Topic Start Date
Labels
-
2960X stack issue
(1) -
9200L Bundle Install Mode
(1) -
9300
(1) -
AAA
(7) -
Access Control Server (ACS)
(2) -
ACI
(2) -
ACI App Center
(1) -
AMP for Endpoints
(1) -
Announcements
(3) -
Application Networking
(1) -
Assurance and Policy
(1) -
Autres sujets de Commutation
(1) -
Autres sujets de Routage
(1) -
boot
(1) -
Branch Router
(765) -
Buying Recommendation
(337) -
BYOD
(1) -
C1000 cluster
(1) -
c3850
(1) -
c9200
(1) -
C9200-24P-E Support Contract
(1) -
C9500-16X
(1) -
Catalyst
(1) -
Catalyst 2000
(1,836) -
Catalyst 3000
(2,662) -
Catalyst 4000
(939) -
Catalyst 6000
(891) -
Catalyst 8000
(98) -
Catalyst 9000
(3,940) -
Catalyst 9000 Switches
(9) -
Catalyst Switch
(32) -
Cisco ACI
(3) -
Cisco Annual Internet Report
(1) -
Cisco Bugs
(25) -
Cisco Cafe
(93) -
Cisco Catalyst Center
(34) -
Cisco Digital Network Architecture-DNA
(3) -
Cisco DNA Assurance
(1) -
Cisco DNA Automation
(1) -
Cisco DNA Center
(2) -
Cisco Firepower Management Center (FMC)
(1) -
Cisco IE-2000(U) EIGRP vs EIGRP Stub
(1) -
Cisco ONE
(5) -
Cisco Press Cafe
(3) -
Cisco Software
(76) -
Cisco Spaces
(2) -
CISCO START ASEAN
(3) -
Cisco Start India
(6) -
Cisco SW
(1) -
Cisco User Groups
(1) -
Cisco.com Idea Center
(5) -
CiscoChat
(6) -
Cloud Networking
(2) -
Collaboration
(1) -
Collaboration Endpoints
(1) -
Collaboration Solutions
(5) -
Community Bug or Issue
(9) -
Community Feedback Forum
(130) -
Community Ideas
(59) -
Commutation
(2) -
Compliance and Posture
(1) -
Conferencing
(1) -
Configuration
(12) -
Contact Center
(1) -
CSC Content with No Valid Community to Post
(12) -
Data Center
(1) -
Data Center Networking
(3) -
Desk Endpoints
(1) -
Device Admin
(7) -
EEM Scripting
(5) -
Email Security
(2) -
etherchannel
(1) -
Firewalls
(1) -
General
(3) -
Guest
(1) -
Général
(1) -
Identity Services Engine
(1) -
Identity Services Engine (ISE)
(6) -
Industrial Switching
(2) -
Integrations
(1) -
Intent Based Networking
(1) -
iOS
(1) -
IOS issue
(1) -
IOS Version
(1) -
ios xe
(1) -
IP Phone and Accessories
(1) -
IP Phones and Accessories
(2) -
IPS and IDS
(1) -
IPv6 Configuration
(1) -
ISE
(1) -
ISR 4000 Series
(1) -
LAN
(9) -
LAN Switching
(20,186) -
LAN Switching and Routing
(1) -
License
(1) -
Meraki
(1) -
Meraki Switch
(171) -
Movilidad
(1) -
Multi-Domain
(1) -
Network Assurance
(1) -
Network Management
(110) -
Network Security
(1) -
network stich issue
(1) -
Networking
(4) -
New Document Idea
(3) -
Nexus
(1) -
Nexus 7000
(1) -
Nexus 9000
(1) -
Nexus Dashboard Insights
(1) -
Nexus Series Switches
(3) -
NGIPS
(1) -
NX-OS
(1) -
Online Chat Support
(2) -
Online Tools and Resources
(4) -
Optical Networking
(11) -
Other Cisco DNA
(3) -
Other Cisco.com Ideas
(1) -
Other Collaboration Applications
(8) -
Other Collaboration Endpoints
(3) -
Other Collaboration Topics
(18) -
Other Community Feedback
(9) -
Other Data Center Switches
(3) -
Other Data Center Topics
(1) -
Other Identity Services Engine (ISE)
(1) -
Other IP Telephony
(1) -
Other NAC
(3) -
Other Network
(22) -
Other Network Architecture
(1) -
Other Network Security Topics
(8) -
Other Networking
(26) -
Other NGFW Firewall Topics
(1) -
Other NGFW Firewalls Topics
(1) -
Other Policy-Access Topics
(2) -
Other Routers
(6) -
Other Routing
(12) -
Other Routing and Switching topics
(13) -
Other SD-WAN
(2) -
Other Security Topics
(3) -
Other Storage Networking
(1) -
Other Switches
(6,139) -
Other Switches Routing
(8) -
Other Switching
(74,993) -
Other Wireless - Mobility Subjects
(1) -
Other Wireless and Mobility Subjects
(7) -
Peripherals
(2) -
Physical Security
(2) -
Positive Feedback
(3) -
Primary boot loader issue
(1) -
Prioritization
(1) -
Remote Access
(1) -
Room Endpoints
(1) -
Routage
(1) -
Routing
(172) -
Routing Protocols
(12) -
SD-Access
(4) -
SD-WAN
(1) -
Security
(2) -
Security Management
(5) -
Security Policy-Access
(2) -
Simplified Operations
(1) -
Small Business Network and Smart Storage
(1) -
Small Business Routers
(2) -
Small Business Security
(1) -
Small Business Support Service
(1) -
Small Business Switches
(36) -
Small Business Wireless
(1) -
Smart Call Home
(1) -
smart net total care portal and collector
(1) -
Software Upgrades
(9) -
Storage Networking
(4) -
Support
(7) -
Switches
(20) -
Switching
(34) -
Switching or Switches
(3) -
Swtiches
(3) -
Technical Documentation
(11) -
Technical Documentation Ideas
(1) -
UCCE CTI Protocol
(1) -
UCS Networking and Storage
(2) -
UCS Solutions
(1) -
Unified Computing System (UCS)
(3) -
Update Document
(1) -
Voice Gateways
(1) -
VPN
(1) -
WAN
(404) -
Webex Meetings
(1) -
Wi-Fi 6
(72) -
Wired
(5) -
Wireless Controllers
(1) -
Wireless Network Management
(1) -
Wireless Security and Network Management
(2) -
XR OS and Platforms
(3) -
YANG Development Kit (YDK)
(1) -
ルータ一般 (IOS & IOS-XE)
(1) -
交换机
(1)
- « Previous
- Next »
Forum Posts
I have 4 location in the company. I am using the 3850 Cisco switch in one location of my company and that location is mediatory for other 3 location also. I am using the same 192.168.0.x subnet for 3 location & one location using 172.16.15.x subnet a...
Hello, I am having some ports on my switch that are having connection issues. Ports are going up and down every few seconds. Any suggestions? May 28 10:29:38.960 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Gigabit Ethernet0/7, changed state...
Hey Cisco community, I am a beginner practicing and I've been stuck on this issue for the past two days and I believe I have narrowed down the issue to being a problem with the switch. I have a simple network topology attached to this post for better...
We have below switch SW2#show versionCisco IOS Software, C3560E Software (C3560E-UNIVERSALK9-M), Version 12.2(55)SE11, RELEASE SOFTWARE (fc3)Copyright (c) 1986-2016 by Cisco Systems, Inc.Compiled Wed 17-Aug-16 12:46 by prod_rel_teamImage text-base: 0...
Resolved! PRP Trunks
Hi, Please refer the attached diagram. I have implemented PRP on an IE-5000 switch as shown in the figure. IE-5000 to SW A and SW B are TRUNK ports. So PRP channel is a trunk channel. When I give a ping to DAN 1 I can confirm PRP is working fine as w...
Hello! I am trying to find out how to replace a failed Supervisor in a Quad-Sup 6T (the latest sup) VSS in 6807 chassis. I am only able to find documentation on how to replace a failed supervisor in Quad-Sup 2T VSS in 6500 chassis but I don't think ...
Resolved! High availability with switch stack
Hi everyoneI am reading about switch stack technology and i have some questions about high availability featureI dont really understand how stack technology can provide this feature (i mean HA for data traffic, not only for device management)?Can som...
I'm using GLC-T modules on a 4500X to hopefully support older 100/10 equipment. I'm using IOS version 3.9, and from what I can see 100/10 support was added to the 4500X in 3.7. When setting the speed to 100 or 10, the throughput between two servers(...
I'm trying to setup intra vlan netflow to monitor traffic within the same Vlan (IP source/dest, mac source/dest, port source/dest) On a 3750x running 15.2(4)E2 IPServices When I try to add the flow to the layer 2 vlan, I get the following error: % Fl...
Resolved! MACSEC - Catalyst to Nexus 9k
Hey guysHas anyone managed to get basic macsec link working from a Catalyst to a Nexus 9K? Both are licensed fine but the configuration differences are throwing me off. On the Catalyst its a simple "cts manual" and putting in the key but the nexus 9k...
Hello All, I have an SG350X-48P (firmware 2.3.5.63) being used as an access switch that I just plugged two POE cameras into. I am showing no power use (0%) from either the GUI or from the CLI using "show power inline" which obviously can't be true si...
Dear Experts,I am facing a problem with HSRP MAC Flap. I have two routers in HSRP working perfectly. When I am trying to add the third router to the same HSRP group I am facing HSRP MAC Flap and the other two routers also getting disturbed.I have att...
Resolved! WLC and AP
Hello Guys, Please i would need your support for my client,i have client that just got 22 units of 2802i AP's, they have existing 2702i and 3502E AP's all connected to a 5508 WLC, this are my challenges; 1. we were asked to upgrade the 5508 WLC from ...
Ok all this is new to me. I have a 4506 that runs flawless. We purchased a Catalyst 9407R because our 4506 is out of life and support. When I add the switchport mode access and switchport access vlan 100 the port runs fine. When I throw in there swit...
Learn, share, save
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide
Unanswered Topics
| Subject | Author | Posted |
|---|---|---|
| 07-23-2025 01:45 PM | ||
| 07-08-2025 11:44 PM | ||
| 07-04-2025 02:13 AM | ||
| 06-26-2025 10:05 AM | ||
| 06-16-2025 07:47 PM |
Top Solution Authors
| User | Count |
|---|---|
| 13 | |
| 11 | |
| 9 | |
| 5 | |
| 4 |
