Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Catalyst 4500:Cat4k IOS SW licenses are as follows: - for 4503/4506, one enhanced L3 license for the supervisor - for 4507R/4510R, one enhanced L3 license for the chassisIssue 1: Failed: Specified UDI not foundYou get an error message akin to "Faile...
This document provides simplified steps for creating a layer two port channel between two Catalyst switches running IOS. In this example we're creating a portchannel between a Catalyst 4500 and Catalyst 6500 using LACP.When creating a port channel, ...
Problem Description:
A bridging loop or spanning tree loop caused a network outage. To break the loop you've pulled one of the redundant links or shut down one of the switches that are participating in the loop but now you're unsure of what to do to...
"show span vlan <#> detail" will give you all the ports forwarding for the vlan. The key here is in knowing the spanning tree topology well enough to identify a port that should be blocking but is not. There should be one root port and multiple des...
Hi Amit,I have a few questions. - Can you provide me the switch config and show version?- what interfaces are conneting the routers?Unless it is configured to create a tunnel or is a metro switch with service instances the switch will only look at t...
not sure if this will work but I found the following thread:https://discussions.apple.com/thread/2033838?start=0&tstart=0sudo ifconfig en0 media 100baseTX mediaopt hw-loopbackunfortunately this is not persistent across reloads
Not sure why that link did not work. It's a support forum doc I wrote. Here's the body:Catalyst Switch Configuration Options for Microsoft NLB Clustering in Multicast ModeSwitch config for Microsoft NLB 2003/2007 for Multicast Mode with IGMPNOTE: I...
You will always need the static ARP entries becasue we will never dynamically program a unicast IP to a multicast mac (as this breaks RFC1812). With NLB in multicast mode with IGMP you will not need to program any static MACs on the NLB uplinks and ...
