HiI am struggling with something which I belive should be easy to fix.We are running a Network with cisco C9300-24P Switches with IOS Version 16.9.4Config Template Looks like belowinterface Gi1/0/1 description switchport access vlan 999 switchport m...
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Resolved! Method for detecting loops.....
I am a network tech at a local school district (easily enterprise network). I am just a worker bee, so have no say in the design of the networks. Our topo at a site goes WAN rtr---LAN rtr (6500 of 3550)----distro switches----access switches.Now at ...
Resolved! Cisco 1841 ISR - Boot error
Hi everyoneDoes anybody knows what´s happening with this Router.It cannot boot the IOS image, I´m getting this error when I turn on the Router or reset it from Rommon:Initializing ATA monitor library.......open(): Open Error = -47loadprog: error - on...
I have a need to create redundant links to other switches for a mesh topology; however, I know spanning tree would elect different interfaces on Root and Blocking ports, yet I am new trying to tweak STP. What are some good design practices you have ...
I have Cisco 2960c-12pc-l . Was working great for last 10 years, recently experienced UPS power fluctuation and finally switching itself off. After connecting the power to switch via power socket, I have noticed the Ethernet connection is very poor q...
Hi,Is there is way to use pipe command with "show module" to display only the first table?Or is there is other command can display only the first table?The target switches are 7k and 6k. Thank you. switch# show module Mod Ports Module-Type ...
Hi All I ve enabled snmp on asa to allow dmz server access the monitoring server.Its saying cant "UNKNOWN: Get https://10.56.130.114:18443/query/check_nscp_version: dial tcp 10.56.130.114:18443: connect: connection refused " But the rule is actually ...
If (2) 9300 switches are connected with only 1 data stack cable and both are up. Will connecting the 2nd stack ports cause the stack to reload? Stack Ring Speed : 160GStack Ring Configuration: HalfStack Ring Protocol : StackWise
I have 2 cisco 3850's that I am trying to put into a stack. I have provisioned the 2 switches, set stack numbers on them, but the stack ports never come up, they are always in DOWN status. What do I need to do?? I am used to 3750's and have no iss...
Resolved! Restore running-config and vlan.dat
Hello,I would like to restore running-config and vlan.dat on a cisco 3850 switch.I have the old configuration on a txt file.On the switch, I have the startup config file in the nvram folder.On the other hand, the vlans do not appear in the conf, they...
Resolved! What version of IOS can I upgrade 2960-XR switch stack currently running version 15.0(2)E5
What version of IOS should I upgrade our 2960-XR stacks currently running 5.0(2)EX4 IOS? Do I have to do the upgrade version to version or I can jump to the very latest version?
Hi, I have RSPAN configuration, but I see only broadcast/multicast traffic. I have this: PC (vlan 100) - SW1 -(trunk)- SW2 -(trunk)- SW3 -(trunk)- SW4 - (gi0/23) tcpdump SW1 - 2960 - c2960-lanbasek9-mz.122-50.SE5 SW2 - 2960 SW3 - 3750X SW4 - 2960 All...
Resolved! Cisco 3560-CX cant ping between VLANS
I am just running up a new 3560-CX lab switch to play with and having some issues.Scenario:- VLAN 10 clients cant ping VLAN 20 clients and vise versa.- Both clients can be pinged from switch (confirming its not windows firewall)- Both clients can pin...
I want to pair 2 C9500-16X switches using SWV technology. However I don't want to use multiple links for SVL. This will save me two ports. Since almost all interfaces for the downlinks are having dual leg connection, I don't see the issue of keeping ...
Does the Cisco Catalyst 9300 & 9500 series have full Layer 3 Routing Capabilities? Reasons why I question are below:Do these terms mean full routing? "routed access" "Layer 3 forwarding" These terms are used in the data sheet and license details.Data...
