This category will be focused on Cisco switching only. L2 technology like vPC, Port-Channel, STP, RSTP, MSTP, VLAN, etc. will be discussed here.
Encapsulated Remote Switched Port Analyzer (ERSPAN) is a technique to mirror traffic over L3 network. Traffic will be encapsulated at the source end and then decapsulated at the destination end. In this lesson, we will learn to configure ERSPAN in Nexus switches. I will present a sample configuration based on below diagram. Hope it will …
How to configure ERSPAN on Cisco Nexus Switches Continue Reading »
TACACS+ provides better authentication, authorization and accounting, which provide flexible administrative control. In this lesson, we will learn how to configure TACACS+ on Cisco routers and switches. I already published a post for IOS XR, you can check that from How to configure TACACS+ on Cisco IOS XR. Today i will show, how to configure …
How to configure TACACS+ on Cisco Routers and Switches Continue Reading »
Earlier we learned about SNMPv3 configuration on Cisco IOS devices. Today we will learn, how to configure SNMP v3 in Cisco Nexus Devices. So, let’s get started. SNMPv3 support three (3) modes. These are- noAuthNoPriv authNoPriv authPriv If you are decided to configure snmp v3, then, there is no point to configure noAuthNoPriv or authNoPriv. …
How to configure SNMP v3 in Cisco Nexus Devices Continue Reading »
Today we will learn Best Practices for VPC on Cisco Nexus switches. Before going in deep, you should understand, what is vPC? Virtual Port-Channel (vPC) is a technology that allows links to be physically connected with two different devices to appear as a single port channel to a third device. You can read more from …
SNMP helps to gather and organize device information in an IP network. Currently, it has three main versions – v1, v2c, v3. The problem with the version v1 and v2c, there is almost no security. So, SNMP v3 was introduced to add security. Earlier, we have configured SNMP v2c, and today we will learn to …
How to configure SNMP v3 in Cisco IOS Devices Continue Reading »
Policy Based Routing or PBR is a feature to manipulate routing and forwarding based on policies, set by the network administrator. In this lesson, we will learn to configure PBR in Cisco Nexus switches. Lab Diagram: Goal of the Lab: Create PBR for source PC-02 (192.168.1.11) Deny PBR for PC-02 when destination is 1.1.1.1 Existing …
How to configure PBR in Cisco Nexus switches Continue Reading »
vPC failure scenarios are sometimes destructive. However, if you have good understanding on vPC and you follow Cisco recommended vPC design, then you can handle Virtual Port Channel (vPC) failure scenarios with confidence. In this lesson, i will be discussing different vPC Failure Scenarios, it’s impact on the network and how to solve the problem …
vPC Failure Scenarios – Impact and Solution Continue Reading »
