Contents
What does it mean when a port is down down?
Protocol refers to “Line Protocol”, which is a Cisco way of saying “the connection”. Basically, up/down means the port is available for a cable/connection, but doesn’t have one. Check the cable, or other computer.
What is a Layer 3 issue?
Layer 3, the network layer, is most commonly known as the layer where routing takes place. A router’s main job is to get packets from one network to another. Layer 3 protocols and technologies allow for network-to-network communications.
How to troubleshoot the Virtual Chassis ( VC )?
set interfaces vme unit 0 family inet address The VME interface uses the master member switch’s me0 interface to provide management access. If the master’s me0 interface goes down, it will use the backup’s me0 interface to provide management connectivity.
How to troubleshoot the virtual management Ethernet ( VC ) interface?
The Virtual Management Ethernet (VME) interface provides one global interface to access the VC. Regular Junos commands can be used to configure the VME interface; just like any other L3 interface or management interface, such as me0.
How to troubleshoot a variety of interface issues?
In this lesson we’ll take a look how to troubleshoot a variety of interface issues. Let’s walk through a couple of scenarios… I will use the following topology: In this example we have a switch in the middle and two computers that are connected to it. Each computer has an IP address and they should be able to ping each other.
What should I do if my virtual server fails?
If probes fail, then verify network connectivity to the back end servers on the port hosting the application. Troubleshooting should be performed for failed probes from specific monitor types depending on the configured monitor type. Note: Different default monitors are defined for different service types.