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ETHCNTR-3-LOOP_BACK_DETECTED: Loop-back detected on gig0/2

Error : ETHCNTR-3-LOOP_BACK_DETECTED: Loop-back detected on gig0/2 Error code CSCea46385 Symptom: An interface on a Catalyst switch is errordisabled after detecting a loopback. Mar 7 03:20:40: %ETHCNTR-3-LOOP_BACK_DETECTED: Loop-back detected on GigabitEt…

STEPS FOR THE IMPLEMENTATION OF HP-RGS BLADE ENCLOSURES

STEPS FOR THE IMPLEMENTATION OF HP-RGS BLADE ENCLOSURES Task 1 :- Create RIB/ILO net (use existing if available) à If New Subnet is needed , Create the SVI on Core switch , Use DHCP and DNS for that location. Make it routable if not . Task 2 :- Assign IP…

eigrp was continuously flapping between 300 MB ckt

Issue :Eigrp was continuously flapping between 300 MB ckt Jan 31 07:38:06.191 UTC: %DUAL-5-NBRCHANGE: EIGRP-IPv4 224: Neighbor 143.98.217.2 (GigabitEthernet0/0/2) is up: new adjacency Jan 31 07:38:53.433 UTC: %DUAL-5-NBRCHANGE: EIGRP-IPv4 224: Neighbor 14…

Switch Memory issue due to Netflow

Netflow is the mechanism through which we can capture the real time data of the network to analyse the traffic pattern , Bandwidth usage and to troubleshoot the utilization of the network . Some time Netflow cause the Memory utilization causing switch to …

802.1x Configuration & Troubleshoot

This Troubleshooting 802.1x document provides the step-by-step procedures that are documented for easy reference and later use for the 802.1X Basic Troubleshooting. The IEEE 802.1X standard defines a client-server-based access control and authentication p…

SDN

SDN is software defined Network SDN is software defined network SDN is software defined network SDN is software defined network

eth_bypass WAE 10.5.76.18 Major The interface InlinePort 1/1/wan is in bypass mode.

Mechanical bypass mode prevents the WAE from becoming a single point of failure and allows traffic to continue to flow between the router and the client while it passes through an unresponsive WAE without being processed.   Should Check on WAE that M…

Understanding OSPF LSA Type-4

Every one who are at this position of preparing for CCIE lab must know about all ospf LSA Types. However LSA Type-4 always remains mysterious and confusing for many of us. So let’s discuss on this LSA Type. Consider a small ospf domain for better un…

Configuring SNMP on Nexus Devices

Step1. Create object group for the interface used by SNMP server to poll the device. In this example we use the IP address of management interface. We have given the name snmp-Interface to management interface. It is basically a IP to name mapping.  …

Configuring Fabricpath

N7K1 ( config) # install feature-set fabric-path N7K1 ( config) # feature-set fabric-path   N7K1 ( config) # Interface vlan 10 N7K1 ( config-if) # mode fabric-path   N7K1 ( config) # Interface e1/4 ( on Fabric-path Core-ports) N7K1 ( config-if) # switch…